diff --git a/SampleSrc/accgyro.ino b/SampleSrc/accgyro.ino
index 4963b47..3654c27 100644
--- a/SampleSrc/accgyro.ino
+++ b/SampleSrc/accgyro.ino
@@ -6,10 +6,9 @@
 float ax, ay, az;  // 加速度データ
 
 void setup() {
-  M5.begin();
+  M5.begin(115200);
   M5.Lcd.setRotation(3);
   M5.IMU.Init();
-  Serial.begin(115200);
   Serial.println("");
 }
 void loop() {
@@ -26,3 +25,4 @@
   delay(50);
 }
 
+
diff --git a/SampleSrc/analogread.ino b/SampleSrc/analogread.ino
index d7b029e..e85f840 100644
--- a/SampleSrc/analogread.ino
+++ b/SampleSrc/analogread.ino
@@ -10,7 +10,7 @@
 // 注意点: https://lang-ship.com/reference/unofficial/M5StickC/Peripherals/ADC/
 
 void setup() {
-  M5.begin();
+  M5.begin(115200);
   
   pinMode(PIN, ANALOG); // PINのモード設定
   
@@ -23,3 +23,5 @@
   delay(1000);
 }
 
+
+
diff --git a/SampleSrc/bts01_master.ino b/SampleSrc/bts01_master.ino
index b758796..2770367 100644
--- a/SampleSrc/bts01_master.ino
+++ b/SampleSrc/bts01_master.ino
@@ -1,105 +1,105 @@
-#include <M5StickCPlus.h>
-#include <BluetoothSerial.h>
-
-BluetoothSerial SerialBT;
-
-bool willConnect = true;
-bool connected;
-
-const char* dname = "BT_Serial_00"; // Slave device name
-
-void setup() {
-  M5.begin();
-  M5.Lcd.setRotation(3);
-  M5.Lcd.fillScreen(BLUE);
-
-  M5.Lcd.setTextColor(BLACK, CYAN);
-  M5.Lcd.setCursor(0, 0, 1);
-  M5.Lcd.setTextSize(2);
-
-  Serial.begin(115200);
-  SerialBT.begin("BT_Serial_01", true);
-  Serial.println("The device started in master mode, make sure remote BT device is on!");
-
-  // connect(address) is fast (upto 10 secs max), connect(name) is slow (upto 30 secs max) as it needs
-  // to resolve name to address first, but it allows to connect to different devices with the same name.
-  // Set CoreDebugLevel to Info to view devices bluetooth address and device names
-  if (false) {
-    connected = SerialBT.connect(dname);
-  } else {
-    // uint8_t address[6]  = {0x24, 0xA1, 0x60, 0x47, 0x84, 0x4E}; // MACアドレスが 24:A1:60:47:84:4E のとき
-    uint8_t address[6]  = {0x94, 0xB9, 0x7e, 0xad, 0x53, 0x92}; 
-    connected = SerialBT.connect(address);
-  }
-  if (connected) {
-    Serial.println("Connected Succesfully!");
-    M5.Beep.tone(2000, 1000);
-    M5.Lcd.fillScreen(CYAN);
-  }
-  // disconnect() may take upto 10 secs max
-  //  if (SerialBT.disconnect()) {
-  //    connected = false;
-  //    Serial.println("Disconnected Succesfully!");
-  //  }
-  // this would reconnect to the name(will use address, if resolved) or address used with connect(name/address).
-  //SerialBT.connect();
-}
-
-void connectOrDisconnect(bool willCon) {
-  if (willCon && connected) return;
-  if (willCon) {
-    if (connected) {
-      Serial.println("Connected Succesfully!");
-      M5.Beep.tone(2000, 1000);
-      M5.Lcd.fillScreen(CYAN);
-    } else {
-      while (!SerialBT.connected(10000)) {
-        Serial.println("Failed to connect. Make sure remote device is available and in range, then restart app.");
-        M5.Lcd.fillScreen(PURPLE);
-      }
-    }
-  } else {
-    if ( SerialBT.disconnect() ) {
-      connected = false;
-      Serial.println("Disconnected Succesfully!");
-      M5.Lcd.fillScreen(BLUE);
-    }
-  }
-}
-int line = 0;
-void loop() {
-  connectOrDisconnect( willConnect );
-
-  char c;
-  if (Serial.available()) {
-    SerialBT.write(c = Serial.read());
-    Serial.printf("read:%c\n", c);
-  }
-  if (SerialBT.available()) {
-    Serial.write(c = SerialBT.read());
-    M5.Lcd.print(c);
-    if (c == 0xa) line++;
-    if (line > 7) {
-      M5.Lcd.fillScreen(CYAN);  M5.Lcd.setCursor(0, 0, 1);
-      line = 0;
-    }
-  }
-
-  M5.update();  M5.Beep.update();
-  if (M5.BtnA.wasReleasefor(1000) ) {
-    SerialBT.println("[A] was Pressed longer than 1s");
-  } else if (M5.BtnA.wasReleased()) {
-    SerialBT.println("[A] was Pressed");
-  } else if (M5.BtnB.wasReleasefor(1000) ) {
-    SerialBT.println("[B] was Pressed longer than 1s");
-    if (SerialBT.disconnect()) {
-      connected = false;
-      M5.Lcd.fillScreen(PURPLE);
-    }
-  } else if (M5.BtnB.wasReleased()) {
-    SerialBT.println("[B] was Pressed");
-  } else if (M5.Axp.GetBtnPress() == 2) {
-    SerialBT.println("[Power] was Pressed");
-  }
-  delay(20);
-}
+#include <M5StickCPlus.h>
+#include <BluetoothSerial.h>
+
+BluetoothSerial SerialBT;
+
+bool willConnect = true;
+bool connected;
+
+const char* dname = "BT_Serial_00"; // Slave device name
+
+void setup() {
+  M5.begin(115200);
+  M5.Lcd.setRotation(3);
+  M5.Lcd.fillScreen(BLUE);
+
+  M5.Lcd.setTextColor(BLACK, CYAN);
+  M5.Lcd.setCursor(0, 0, 1);
+  M5.Lcd.setTextSize(2);
+
+  SerialBT.begin("BT_Serial_01", true);
+  Serial.println("The device started in master mode, make sure remote BT device is on!");
+
+  // connect(address) is fast (upto 10 secs max), connect(name) is slow (upto 30 secs max) as it needs
+  // to resolve name to address first, but it allows to connect to different devices with the same name.
+  // Set CoreDebugLevel to Info to view devices bluetooth address and device names
+  if (false) {
+    connected = SerialBT.connect(dname);
+  } else {
+    // uint8_t address[6]  = {0x24, 0xA1, 0x60, 0x47, 0x84, 0x4E}; // MACアドレスが 24:A1:60:47:84:4E のとき
+    uint8_t address[6]  = {0x94, 0xB9, 0x7e, 0xad, 0x53, 0x92}; 
+    connected = SerialBT.connect(address);
+  }
+  if (connected) {
+    Serial.println("Connected Succesfully!");
+    M5.Beep.tone(2000, 1000);
+    M5.Lcd.fillScreen(CYAN);
+  }
+  // disconnect() may take upto 10 secs max
+  //  if (SerialBT.disconnect()) {
+  //    connected = false;
+  //    Serial.println("Disconnected Succesfully!");
+  //  }
+  // this would reconnect to the name(will use address, if resolved) or address used with connect(name/address).
+  //SerialBT.connect();
+}
+
+void connectOrDisconnect(bool willCon) {
+  if (willCon && connected) return;
+  if (willCon) {
+    if (connected) {
+      Serial.println("Connected Succesfully!");
+      M5.Beep.tone(2000, 1000);
+      M5.Lcd.fillScreen(CYAN);
+    } else {
+      while (!SerialBT.connected(10000)) {
+        Serial.println("Failed to connect. Make sure remote device is available and in range, then restart app.");
+        M5.Lcd.fillScreen(PURPLE);
+      }
+    }
+  } else {
+    if ( SerialBT.disconnect() ) {
+      connected = false;
+      Serial.println("Disconnected Succesfully!");
+      M5.Lcd.fillScreen(BLUE);
+    }
+  }
+}
+int line = 0;
+void loop() {
+  connectOrDisconnect( willConnect );
+
+  char c;
+  if (Serial.available()) {
+    SerialBT.write(c = Serial.read());
+    Serial.printf("read:%c\n", c);
+  }
+  if (SerialBT.available()) {
+    Serial.write(c = SerialBT.read());
+    M5.Lcd.print(c);
+    if (c == 0xa) line++;
+    if (line > 7) {
+      M5.Lcd.fillScreen(CYAN);  M5.Lcd.setCursor(0, 0, 1);
+      line = 0;
+    }
+  }
+
+  M5.update();  M5.Beep.update();
+  if (M5.BtnA.wasReleasefor(1000) ) {
+    SerialBT.println("[A] was Pressed longer than 1s");
+  } else if (M5.BtnA.wasReleased()) {
+    SerialBT.println("[A] was Pressed");
+  } else if (M5.BtnB.wasReleasefor(1000) ) {
+    SerialBT.println("[B] was Pressed longer than 1s");
+    if (SerialBT.disconnect()) {
+      connected = false;
+      M5.Lcd.fillScreen(PURPLE);
+    }
+  } else if (M5.BtnB.wasReleased()) {
+    SerialBT.println("[B] was Pressed");
+  } else if (M5.Axp.GetBtnPress() == 2) {
+    SerialBT.println("[Power] was Pressed");
+  }
+  delay(20);
+}
+
diff --git a/SampleSrc/bts01_slave.ino b/SampleSrc/bts01_slave.ino
index 01e38a8..1b8d18b 100644
--- a/SampleSrc/bts01_slave.ino
+++ b/SampleSrc/bts01_slave.ino
@@ -1,61 +1,61 @@
-#include <M5StickCPlus.h>
-#include "BluetoothSerial.h"
-
-BluetoothSerial SerialBT;
-
-const char* dname = "BT_Serial_00"; // Slave device name
-
-void setup() {
-  M5.begin();
-  M5.Lcd.setRotation(3);
-  M5.Lcd.fillScreen(YELLOW);
-  M5.Lcd.setTextColor(BLACK, YELLOW);
-  M5.Lcd.setCursor(0, 0, 1);
-  M5.Lcd.setTextSize(2);
-
-  Serial.begin(115200);
-  SerialBT.begin(dname); //Bluetooth device name
-  Serial.println("The device started, now you can pair it with bluetooth!");
-
-  uint8_t macBT[6];
-  esp_read_mac(macBT, ESP_MAC_BT);
-  char mac[20];
-  sprintf(mac, "%02X:%02X:%02X:%02X:%02X:%02X", macBT[0], macBT[1], macBT[2], macBT[3], macBT[4], macBT[5]);
-  Serial.println(mac);
-  M5.Lcd.println(mac);
-
-}
-
-int line = 0;
-void loop() {
-  char c;
-  if (Serial.available()) {
-    SerialBT.write(c = Serial.read());
-    Serial.printf("read:%c\n", c);
-  }
-  if (SerialBT.available()) {
-    Serial.write(c = SerialBT.read());
-    SerialBT.write(c + 0);
-    M5.Lcd.print(c);
-    if (c == 0xa) line++;
-    if (line > 7) {
-      M5.Lcd.fillScreen(YELLOW);  M5.Lcd.setCursor(0, 0, 1);
-      line = 0;
-    }
-  }
-
-  M5.update();
-  if (M5.BtnA.wasReleasefor(1000) ) {
-    SerialBT.println("[A] was Pressed longer than 1s");
-  } else if (M5.BtnA.wasReleased()) {
-    SerialBT.println("[A] was Pressed");
-  } else if (M5.BtnB.wasReleasefor(1000) ) {
-    SerialBT.println("[B] was Pressed longer than 1s");
-  } else if (M5.BtnB.wasReleased()) {
-    SerialBT.println("[B] was Pressed");
-  } else if (M5.Axp.GetBtnPress() == 2) {
-    SerialBT.println("[Power] was Pressed");
-  }
-
-  delay(20);
-}
\ No newline at end of file
+#include <M5StickCPlus.h>
+#include "BluetoothSerial.h"
+
+BluetoothSerial SerialBT;
+
+const char* dname = "BT_Serial_00"; // Slave device name
+
+void setup() {
+  M5.begin(115200);
+  M5.Lcd.setRotation(3);
+  M5.Lcd.fillScreen(YELLOW);
+  M5.Lcd.setTextColor(BLACK, YELLOW);
+  M5.Lcd.setCursor(0, 0, 1);
+  M5.Lcd.setTextSize(2);
+
+  SerialBT.begin(dname); //Bluetooth device name
+  Serial.println("The device started, now you can pair it with bluetooth!");
+
+  uint8_t macBT[6];
+  esp_read_mac(macBT, ESP_MAC_BT);
+  char mac[20];
+  sprintf(mac, "%02X:%02X:%02X:%02X:%02X:%02X", macBT[0], macBT[1], macBT[2], macBT[3], macBT[4], macBT[5]);
+  Serial.println(mac);
+  M5.Lcd.println(mac);
+
+}
+
+int line = 0;
+void loop() {
+  char c;
+  if (Serial.available()) {
+    SerialBT.write(c = Serial.read());
+    Serial.printf("read:%c\n", c);
+  }
+  if (SerialBT.available()) {
+    Serial.write(c = SerialBT.read());
+    SerialBT.write(c + 0);
+    M5.Lcd.print(c);
+    if (c == 0xa) line++;
+    if (line > 7) {
+      M5.Lcd.fillScreen(YELLOW);  M5.Lcd.setCursor(0, 0, 1);
+      line = 0;
+    }
+  }
+
+  M5.update();
+  if (M5.BtnA.wasReleasefor(1000) ) {
+    SerialBT.println("[A] was Pressed longer than 1s");
+  } else if (M5.BtnA.wasReleased()) {
+    SerialBT.println("[A] was Pressed");
+  } else if (M5.BtnB.wasReleasefor(1000) ) {
+    SerialBT.println("[B] was Pressed longer than 1s");
+  } else if (M5.BtnB.wasReleased()) {
+    SerialBT.println("[B] was Pressed");
+  } else if (M5.Axp.GetBtnPress() == 2) {
+    SerialBT.println("[Power] was Pressed");
+  }
+
+  delay(20);
+}
+
diff --git a/SampleSrc/button01.ino b/SampleSrc/button01.ino
index 5d1c552..99d3a87 100644
--- a/SampleSrc/button01.ino
+++ b/SampleSrc/button01.ino
@@ -1,7 +1,7 @@
 #include <M5StickCPlus.h>
 
 void setup() {
-  M5.begin();
+  M5.begin(115200);
   M5.Lcd.setRotation(3);
 }
 
@@ -22,3 +22,4 @@
   delay(10);
 }
 
+
diff --git a/SampleSrc/cds01.ino b/SampleSrc/cds01.ino
index 539570c..8cfede4 100644
--- a/SampleSrc/cds01.ino
+++ b/SampleSrc/cds01.ino
@@ -1,19 +1,20 @@
-int PIN = 26;
-
-// +--- 15kΩ抵抗 --+-- CdSセル --+
-// |              |             |
-// GND           G26           3V3
-// https://www.storange.jp/2012/03/arduinocds.html
-
-// 注意点: https://lang-ship.com/reference/unofficial/M5StickC/Peripherals/ADC/
-
-void setup() {
-  Serial.begin(115200);
-  pinMode(PIN, ANALOG); // PINのモード設定
-  // https://lang-ship.com/blog/work/m5stickc-io/
-}
-
-void loop() {
-  Serial.printf("%04d\n", analogRead(PIN) ); // 暗 0 〜 4095 明
-  delay(1000);
-}
\ No newline at end of file
+int PIN = 26;
+
+// +--- 15kΩ抵抗 --+-- CdSセル --+
+// |              |             |
+// GND           G26           3V3
+// https://www.storange.jp/2012/03/arduinocds.html
+
+// 注意点: https://lang-ship.com/reference/unofficial/M5StickC/Peripherals/ADC/
+
+void setup() {
+  Serial.begin(115200); //M5.beginを使わずにシリアルを使う場合
+  pinMode(PIN, ANALOG); // PINのモード設定
+  // https://lang-ship.com/blog/work/m5stickc-io/
+}
+
+void loop() {
+  Serial.printf("%04d\n", analogRead(PIN) ); // 暗 0 〜 4095 明
+  delay(1000);
+}
+
diff --git a/SampleSrc/do_nothing.ino b/SampleSrc/do_nothing.ino
new file mode 100644
index 0000000..95c2b6e
--- /dev/null
+++ b/SampleSrc/do_nothing.ino
@@ -0,0 +1,9 @@
+void setup() {
+  // put your setup code here, to run once:
+
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+
+}
diff --git a/SampleSrc/env2.ino b/SampleSrc/env2.ino
index b009203..b3d182e 100644
--- a/SampleSrc/env2.ino
+++ b/SampleSrc/env2.ino
@@ -1,44 +1,45 @@
-/*
- Please install the < Adafruit BMP280 Library > （https://github.com/adafruit/Adafruit_BMP280_Library）
-                     < Adafruit SHT31 Library > （https://github.com/adafruit/Adafruit_SHT31）
-   from the library manager before use.
-  This code will display the temperature, humidity and air pressure information on the screen
-  https://lang-ship.com/blog/work/m5stack-env-ii-unit-u001-b/
-  */
-#include <M5StickCPlus.h>
-#include <Adafruit_BMP280.h>
-#include <Adafruit_SHT31.h>
-Adafruit_SHT31 sht3x = Adafruit_SHT31(&Wire);
-Adafruit_BMP280 bme = Adafruit_BMP280(&Wire);
-float tmp = 0.0;
-float hum = 0.0;
-float pressure = 0.0;
-void setup() {
-  M5.begin();
-  M5.Lcd.setRotation(3);
-  M5.Lcd.setTextSize(3);
-  Wire.begin(32, 33);
-  Serial.println(F("ENV Unit(SHT30 and BMP280) test..."));
-  while (!bme.begin(0x76)) {
-    Serial.println("Could not find a valid BMP280 sensor, check wiring!");
-    M5.Lcd.println("Could not find a valid BMP280 sensor, check wiring!");
-  }
-  while (!sht3x.begin(0x44)) {
-    Serial.println("Could not find a valid SHT3X sensor, check wiring!");
-    M5.Lcd.println("Could not find a valid SHT3X sensor, check wiring!");
-  }
-  M5.Lcd.fillScreen(BLACK);
-  M5.Lcd.println("ENV Unit test...");
-}
-void loop() {
-  pressure = bme.readPressure();
-  tmp = sht3x.readTemperature();
-  hum = sht3x.readHumidity();
-  Serial.printf("Temperature: %2.2f*C  Humidity: %0.2f%%  Pressure: %0.2fhPa\r\n", tmp, hum, pressure / 100);
-  M5.Lcd.setCursor(0, 25);
-  M5.Lcd.setTextColor(WHITE, BLACK);
-  M5.Lcd.printf("Temp:%2.2f*C\n", tmp);
-  M5.Lcd.printf("Humi:%2.2f%%\n", hum);
-  M5.Lcd.printf("Prs :%2.0fhPa\n", pressure / 100);
-  delay(1000);
-}
\ No newline at end of file
+/*
+Please install the < Adafruit BMP280 Library > （https://github.com/adafruit/Adafruit_BMP280_Library）
+< Adafruit SHT31 Library > （https://github.com/adafruit/Adafruit_SHT31）
+from the library manager before use.
+This code will display the temperature, humidity and air pressure information on the screen
+https://lang-ship.com/blog/work/m5stack-env-ii-unit-u001-b/
+*/
+#include <M5StickCPlus.h>
+#include <Adafruit_BMP280.h>
+#include <Adafruit_SHT31.h>
+Adafruit_SHT31 sht3x = Adafruit_SHT31(&Wire);
+Adafruit_BMP280 bme = Adafruit_BMP280(&Wire);
+float tmp = 0.0;
+float hum = 0.0;
+float pressure = 0.0;
+void setup() {
+  M5.begin(115200);
+  M5.Lcd.setRotation(3);
+  M5.Lcd.setTextSize(3);
+  Wire.begin(32, 33);
+  Serial.println(F("ENV Unit(SHT30 and BMP280) test..."));
+  while (!bme.begin(0x76)) {
+    Serial.println("Could not find a valid BMP280 sensor, check wiring!");
+    M5.Lcd.println("Could not find a valid BMP280 sensor, check wiring!");
+  }
+  while (!sht3x.begin(0x44)) {
+    Serial.println("Could not find a valid SHT3X sensor, check wiring!");
+    M5.Lcd.println("Could not find a valid SHT3X sensor, check wiring!");
+  }
+  M5.Lcd.fillScreen(BLACK);
+  M5.Lcd.println("ENV Unit test...");
+}
+void loop() {
+  pressure = bme.readPressure();
+  tmp = sht3x.readTemperature();
+  hum = sht3x.readHumidity();
+  Serial.printf("Temperature: %2.2f*C  Humidity: %0.2f%%  Pressure: %0.2fhPa\r\n", tmp, hum, pressure / 100);
+  M5.Lcd.setCursor(0, 25);
+  M5.Lcd.setTextColor(WHITE, BLACK);
+  M5.Lcd.printf("Temp:%2.2f*C\n", tmp);
+  M5.Lcd.printf("Humi:%2.2f%%\n", hum);
+  M5.Lcd.printf("Prs :%2.0fhPa\n", pressure / 100);
+  delay(1000);
+}
+
diff --git a/SampleSrc/espnow01.ino b/SampleSrc/espnow01.ino
index 850c749..f151ce3 100644
--- a/SampleSrc/espnow01.ino
+++ b/SampleSrc/espnow01.ino
@@ -49,7 +49,7 @@
 }
 void setup()
 {
-  M5.begin();
+  M5.begin(115200);
   M5.Lcd.fillScreen(BLACK);
   M5.Lcd.setRotation(3);
   M5.Lcd.print("ESP-NOW Test\n");
@@ -124,3 +124,4 @@
   delay(1);
 }
 
+
diff --git a/SampleSrc/espnow02.ino b/SampleSrc/espnow02.ino
index f2f9147..72cc0c4 100644
--- a/SampleSrc/espnow02.ino
+++ b/SampleSrc/espnow02.ino
@@ -86,7 +86,7 @@
 
 void setup()
 {
-    M5.begin();
+    M5.begin(115200);
     M5.Lcd.setRotation(3);
     M5.Lcd.fillScreen(YELLOW);
 
@@ -107,3 +107,4 @@
     }
     delay(20);
 }
+
diff --git a/SampleSrc/espnow03.ino b/SampleSrc/espnow03.ino
index 62f392c..09db83b 100644
--- a/SampleSrc/espnow03.ino
+++ b/SampleSrc/espnow03.ino
@@ -60,7 +60,7 @@
 
 void setup()
 {
-    M5.begin();
+    M5.begin(115200);
     M5.Lcd.setRotation(3);
     M5.Lcd.fillScreen(YELLOW);
 
@@ -109,3 +109,4 @@
         // M5.Lcd.printf("%s\n", ?????[??] ); // Print string stored at Line86
     }
 }
+
diff --git a/SampleSrc/httpclient01.ino b/SampleSrc/httpclient01.ino
index bef05d4..3fcdb90 100644
--- a/SampleSrc/httpclient01.ino
+++ b/SampleSrc/httpclient01.ino
@@ -1,33 +1,58 @@
-#include <WiFi.h>
-#include <HTTPClient.h> // ステータスコードの定義もここにある
-
-const char* ssid = "miura2g";
-const char* password = "jikken2022";
-
-// 天気予報API https://weather.tsukumijima.net/ から、千葉の天気を取得 
-const char* weatherapi_url = "http://weather.tsukumijima.net/api/forecast/city/120010";
-
-void setup() {
-  Serial.begin(115200);
-  WiFi.begin(ssid, password);
-  while (WiFi.status() != WL_CONNECTED) { // 接続中...
-    delay(50);
-    Serial.print(".");
-  }
-  delay(1000);
-  
-  HTTPClient http;            // クライアント作成
-  http.begin(weatherapi_url); // HTTPでサーバに接続
-  int httpCode = http.GET();  // ステータスコードを取得
-  if (httpCode > 0) {
-      Serial.println(httpCode);
-    if (httpCode == HTTP_CODE_OK) { // ステータスコードが「成功」(200) なら
-      String payload = http.getString();
-      Serial.println(payload);
-    }
-  }
-  http.end();
-}
-
-void loop() {
-}
\ No newline at end of file
+#include <M5StickCPlus.h>
+#include <WiFi.h>
+#include <HTTPClient.h> // ステータスコードの定義もここにある
+
+const char* ssid = "miura2g";
+const char* password = "jikken2022";
+
+
+void setup() {
+  M5.begin(115200);
+  pinMode(10, OUTPUT);
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) { // 接続中...
+    delay(150);
+    Serial.print(".");
+  }
+  Serial.println("Connected.");
+  delay(2000);
+  get_weather(); // シリアルモニタに天気予報を書き出す
+}
+
+int led=0;
+void loop() {
+  M5.update(); // 各ボタンの状態を（読み取って）更新する：ボタンを判定するときは必須。
+  
+  if (M5.BtnA.wasReleased()) {
+    get_weather(); // シリアルモニタに天気予報を書き出す
+  }
+  delay(150);
+  
+  led++;
+  if (led%2==1){
+    digitalWrite(10,  LOW ); // LED ON (LOW=0)
+  } else {
+    digitalWrite(10,  HIGH ); // LED OFF (HIGH=1)
+  }
+}
+
+void get_weather(){
+  // 天気予報API https://weather.tsukumijima.net/ から、千葉の天気を取得
+  const char* weatherapi_url = "http://weather.tsukumijima.net/api/forecast/city/120010";
+  
+  HTTPClient http;            // クライアント作成
+  http.begin(weatherapi_url); // HTTPでサーバに接続
+  int httpCode = http.GET();  // ステータスコードを取得
+  if (httpCode > 0) {
+    Serial.println(httpCode);
+    if (httpCode == HTTP_CODE_OK) { // ステータスコードが「成功」(200) なら
+      String payload = http.getString();
+      Serial.println(payload);
+    }
+  }
+  http.end();
+  Serial.println("[A]ボタンを押すと、再度取得します。");
+}
+
+
+
diff --git a/SampleSrc/irsend02.ino b/SampleSrc/irsend02.ino
index 27ad9be..caa17ad 100644
--- a/SampleSrc/irsend02.ino
+++ b/SampleSrc/irsend02.ino
@@ -1,81 +1,81 @@
-/* IRremoteESP8266: IRsendDemo - demonstrates sending IR codes with IRsend.
-
-   Version 1.1 January, 2019
-   Based on Ken Shirriff's IrsendDemo Version 0.1 July, 2009,
-   Copyright 2009 Ken Shirriff, http://arcfn.com
-
-   An IR LED circuit *MUST* be connected to the ESP8266 on a pin
-   as specified by kIrLed below.
-
-   TL;DR: The IR LED needs to be driven by a transistor for a good result.
-
-   Suggested circuit:
-       https://github.com/crankyoldgit/IRremoteESP8266/wiki#ir-sending
-
-   Common mistakes & tips:
- *   * Don't just connect the IR LED directly to the pin, it won't
-       have enough current to drive the IR LED effectively.
- *   * Make sure you have the IR LED polarity correct.
-       See: https://learn.sparkfun.com/tutorials/polarity/diode-and-led-polarity
- *   * Typical digital camera/phones can be used to see if the IR LED is flashed.
-       Replace the IR LED with a normal LED if you don't have a digital camera
-       when debugging.
- *   * Avoid using the following pins unless you really know what you are doing:
- *     * Pin 0/D3: Can interfere with the boot/program mode & support circuits.
- *     * Pin 1/TX/TXD0: Any serial transmissions from the ESP8266 will interfere.
- *     * Pin 3/RX/RXD0: Any serial transmissions to the ESP8266 will interfere.
- *   * ESP-01 modules are tricky. We suggest you use a module with more GPIOs
-       for your first time. e.g. ESP-12 etc.
-*/
-#include <M5StickCPlus.h>
-#include <IRremoteESP8266.h>
-#include <IRsend.h>
-
-const uint16_t kIrLed = 9;  // 赤外LEDが接続されたピン番号
-
-IRsend irsend(kIrLed);  // Set the GPIO to be used to sending the message.
-
-// Example of data captured by IRrecvDumpV2.ino
-uint16_t photoshot[99] = {3488, 1740,  438, 424,  438, 1302,  440, 422,  438, 424, 440, 422,  440, 422,
-                          440, 422,  438, 424,  438, 424,  438, 424,  438, 424,  438, 426,  438, 424,
-                          438, 1302,  440, 422,  442, 422,  440, 424,  438, 424,  438, 424,
-                          442, 420,  438, 1304,  438, 1304,  440, 1302,  438, 424,  438, 424,  438, 424,
-                          438, 424,  438, 1302,  440, 424,  440, 1302,  440, 422,  438, 424,  440, 422,
-                          440, 1302,  438, 1304,  438, 424,  438, 424,  438, 1304,  438, 1302,  438, 424,
-                          438, 424,  462, 1278,  464, 1278,  464, 1278,  462, 1280,  460, 1280,  464, 398,
-                          464, 398,  438
-                         };  // PANASONIC 40040E14667C
-
-uint16_t recording[99] = {3490, 1738,  440, 424,  438, 1304,  438, 424,  438, 424,  438, 424,  438, 424,
-                      438, 424,  438, 424,  438, 424,  438, 424,  438, 424,  438, 424,  438, 424,
-                      438, 1302,  440, 424,  442, 422,  438, 424,  438, 424,  438, 424,  438, 424,
-                      438, 1302,  442, 1302,  438, 1302,  440, 424,  440, 424,  438, 424,  438, 424,
-                      438, 1302,  442, 420,  442, 1302,  438, 424,  438, 422,  442, 422,  438, 424,
-                      440, 1302,  438, 1302,  438, 424,  438, 424,  438, 1302,  442, 1300,  440, 424,
-                      440, 422,  440, 1302,  440, 424,  462, 1278,  464, 400,  464, 398,  464, 1278,  464
-                     };  // PANASONIC 40040E143329
-
-void setup() {
-  M5.begin();
-  Serial.begin(115200);
-  M5.Lcd.fillScreen(BLUE);
-  irsend.begin();
-}
-
-void loop() {
-  //  Serial.println("NEC");  //  irsend.sendNEC(0x00FFE01FUL);
-  //  Serial.println("Sony"); //  irsend.sendSony(0xa90, 12, 2);  // 12 bits & 2 repeats
-  M5.update();
-  if (M5.BtnA.wasReleased()) {
-    irsend.sendRaw(photoshot, 99, 38);  // Send a raw data capture at 38kHz.
-    M5.Lcd.fillScreen(YELLOW);
-  } else if (M5.BtnB.wasReleased()) {
-    irsend.sendRaw(recording, 99, 38);  // Send a raw data capture at 38kHz.
-    M5.Lcd.fillScreen(RED);
-  }
-  delay(150);
-  M5.Lcd.fillScreen(BLUE);
-  //  Serial.println("a Samsung A/C state from IRrecvDumpV2");
-  //  irsend.sendSamsungAC(samsungState);
-  //  delay(2000);
-}
\ No newline at end of file
+/* IRremoteESP8266: IRsendDemo - demonstrates sending IR codes with IRsend.
+
+   Version 1.1 January, 2019
+   Based on Ken Shirriff's IrsendDemo Version 0.1 July, 2009,
+   Copyright 2009 Ken Shirriff, http://arcfn.com
+
+   An IR LED circuit *MUST* be connected to the ESP8266 on a pin
+   as specified by kIrLed below.
+
+   TL;DR: The IR LED needs to be driven by a transistor for a good result.
+
+   Suggested circuit:
+       https://github.com/crankyoldgit/IRremoteESP8266/wiki#ir-sending
+
+   Common mistakes & tips:
+ *   * Don't just connect the IR LED directly to the pin, it won't
+       have enough current to drive the IR LED effectively.
+ *   * Make sure you have the IR LED polarity correct.
+       See: https://learn.sparkfun.com/tutorials/polarity/diode-and-led-polarity
+ *   * Typical digital camera/phones can be used to see if the IR LED is flashed.
+       Replace the IR LED with a normal LED if you don't have a digital camera
+       when debugging.
+ *   * Avoid using the following pins unless you really know what you are doing:
+ *     * Pin 0/D3: Can interfere with the boot/program mode & support circuits.
+ *     * Pin 1/TX/TXD0: Any serial transmissions from the ESP8266 will interfere.
+ *     * Pin 3/RX/RXD0: Any serial transmissions to the ESP8266 will interfere.
+ *   * ESP-01 modules are tricky. We suggest you use a module with more GPIOs
+       for your first time. e.g. ESP-12 etc.
+*/
+#include <M5StickCPlus.h>
+#include <IRremoteESP8266.h>
+#include <IRsend.h>
+
+const uint16_t kIrLed = 9;  // 赤外LEDが接続されたピン番号
+
+IRsend irsend(kIrLed);  // Set the GPIO to be used to sending the message.
+
+// Example of data captured by IRrecvDumpV2.ino
+uint16_t photoshot[99] = {3488, 1740,  438, 424,  438, 1302,  440, 422,  438, 424, 440, 422,  440, 422,
+                          440, 422,  438, 424,  438, 424,  438, 424,  438, 424,  438, 426,  438, 424,
+                          438, 1302,  440, 422,  442, 422,  440, 424,  438, 424,  438, 424,
+                          442, 420,  438, 1304,  438, 1304,  440, 1302,  438, 424,  438, 424,  438, 424,
+                          438, 424,  438, 1302,  440, 424,  440, 1302,  440, 422,  438, 424,  440, 422,
+                          440, 1302,  438, 1304,  438, 424,  438, 424,  438, 1304,  438, 1302,  438, 424,
+                          438, 424,  462, 1278,  464, 1278,  464, 1278,  462, 1280,  460, 1280,  464, 398,
+                          464, 398,  438
+                         };  // PANASONIC 40040E14667C
+
+uint16_t recording[99] = {3490, 1738,  440, 424,  438, 1304,  438, 424,  438, 424,  438, 424,  438, 424,
+                      438, 424,  438, 424,  438, 424,  438, 424,  438, 424,  438, 424,  438, 424,
+                      438, 1302,  440, 424,  442, 422,  438, 424,  438, 424,  438, 424,  438, 424,
+                      438, 1302,  442, 1302,  438, 1302,  440, 424,  440, 424,  438, 424,  438, 424,
+                      438, 1302,  442, 420,  442, 1302,  438, 424,  438, 422,  442, 422,  438, 424,
+                      440, 1302,  438, 1302,  438, 424,  438, 424,  438, 1302,  442, 1300,  440, 424,
+                      440, 422,  440, 1302,  440, 424,  462, 1278,  464, 400,  464, 398,  464, 1278,  464
+                     };  // PANASONIC 40040E143329
+
+void setup() {
+  M5.begin(115200);
+  M5.Lcd.fillScreen(BLUE);
+  irsend.begin();
+}
+
+void loop() {
+  //  Serial.println("NEC");  //  irsend.sendNEC(0x00FFE01FUL);
+  //  Serial.println("Sony"); //  irsend.sendSony(0xa90, 12, 2);  // 12 bits & 2 repeats
+  M5.update();
+  if (M5.BtnA.wasReleased()) {
+    irsend.sendRaw(photoshot, 99, 38);  // Send a raw data capture at 38kHz.
+    M5.Lcd.fillScreen(YELLOW);
+  } else if (M5.BtnB.wasReleased()) {
+    irsend.sendRaw(recording, 99, 38);  // Send a raw data capture at 38kHz.
+    M5.Lcd.fillScreen(RED);
+  }
+  delay(150);
+  M5.Lcd.fillScreen(BLUE);
+  //  Serial.println("a Samsung A/C state from IRrecvDumpV2");
+  //  irsend.sendSamsungAC(samsungState);
+  //  delay(2000);
+}
+
diff --git a/SampleSrc/lcd01.ino b/SampleSrc/lcd01.ino
index 123ecda..7d04037 100644
--- a/SampleSrc/lcd01.ino
+++ b/SampleSrc/lcd01.ino
@@ -1,35 +1,36 @@
-#include <M5StickCPlus.h>
-
-void setup() {
-  M5.begin();
-  M5.Lcd.setRotation(3);
-  M5.Lcd.fillRect(0, 0, 240, 135, RED); 
-  //M5StickCPlusの画面サイズは、240 x 135
-
-  M5.Lcd.fillRect(10, 10, 220, 115, ORANGE);
-  M5.Lcd.fillRect(20, 20, 200, 95, YELLOW);
-  M5.Lcd.fillRect(30, 30, 180, 75, GREENYELLOW);
-  M5.Lcd.fillRect(40, 40, 160, 55, CYAN);
-  M5.Lcd.fillRect(50, 50, 140, 35, BLUE);
-  M5.Lcd.fillRect(60, 60, 120, 15, MAGENTA);
-
-  M5.Lcd.setTextFont(1); // 8pixel ASCII font
-  M5.Lcd.setTextSize(1); // Magnify (x1-7)
-  M5.Lcd.setTextColor(WHITE);
-  M5.Lcd.setCursor(10,1); M5.Lcd.print("RED");
-  M5.Lcd.setTextColor(BLACK);
-  M5.Lcd.setCursor(20,11); M5.Lcd.print("ORANGE");
-  M5.Lcd.setCursor(30,21); M5.Lcd.print("YELLOW");
-  M5.Lcd.setCursor(40,31); M5.Lcd.print("GREENYELLOW");
-  M5.Lcd.setCursor(50,41); M5.Lcd.print("CYAN");
-  M5.Lcd.setTextColor(WHITE);
-  M5.Lcd.setCursor(60,51); M5.Lcd.print("BLUE");
-  M5.Lcd.setCursor(70,60,2); M5.Lcd.print("MAGENTA (2)");
-  // setCursorの第3引数は、TextFont番号
-
-  M5.Lcd.setTextColor(BLACK);
-  M5.Lcd.setCursor(30,90,4); M5.Lcd.print("26pixel ASCII (4)");
-}
-
-void loop() {
-}
\ No newline at end of file
+#include <M5StickCPlus.h>
+
+void setup() {
+  M5.begin(115200);
+  M5.Lcd.setRotation(3);
+  M5.Lcd.fillRect(0, 0, 240, 135, RED); 
+  //M5StickCPlusの画面サイズは、240 x 135
+
+  M5.Lcd.fillRect(10, 10, 220, 115, ORANGE);
+  M5.Lcd.fillRect(20, 20, 200, 95, YELLOW);
+  M5.Lcd.fillRect(30, 30, 180, 75, GREENYELLOW);
+  M5.Lcd.fillRect(40, 40, 160, 55, CYAN);
+  M5.Lcd.fillRect(50, 50, 140, 35, BLUE);
+  M5.Lcd.fillRect(60, 60, 120, 15, MAGENTA);
+
+  M5.Lcd.setTextFont(1); // 8pixel ASCII font
+  M5.Lcd.setTextSize(1); // Magnify (x1-7)
+  M5.Lcd.setTextColor(WHITE);
+  M5.Lcd.setCursor(10,1); M5.Lcd.print("RED");
+  M5.Lcd.setTextColor(BLACK);
+  M5.Lcd.setCursor(20,11); M5.Lcd.print("ORANGE");
+  M5.Lcd.setCursor(30,21); M5.Lcd.print("YELLOW");
+  M5.Lcd.setCursor(40,31); M5.Lcd.print("GREENYELLOW");
+  M5.Lcd.setCursor(50,41); M5.Lcd.print("CYAN");
+  M5.Lcd.setTextColor(WHITE);
+  M5.Lcd.setCursor(60,51); M5.Lcd.print("BLUE");
+  M5.Lcd.setCursor(70,60,2); M5.Lcd.print("MAGENTA (2)");
+  // setCursorの第3引数は、TextFont番号
+
+  M5.Lcd.setTextColor(BLACK);
+  M5.Lcd.setCursor(30,90,4); M5.Lcd.print("26pixel ASCII (4)");
+}
+
+void loop() {
+}
+
diff --git a/SampleSrc/mqtt01pub.ino b/SampleSrc/mqtt01pub.ino
index aee91ff..7d7054c 100644
--- a/SampleSrc/mqtt01pub.ino
+++ b/SampleSrc/mqtt01pub.ino
@@ -1,70 +1,71 @@
-// MQTT Publisher example 
-//#include <M5StickCPlus.h>
-#include <WiFi.h>
-// ライブラリで PubSubClient をいれておく ★★★ 重要 ★★★
-#include <PubSubClient.h>
-
-const char* ssid = "miura2g";
-const char* password = "jikken2022";
-
-const char* server = "192.168.11.11"; // "mqtt.istlab.info";
-const int   port     = 1883;                   // 注：学内ネットワークはポート制限あり。
-const char* pubTopic = "office/temp"; //"ex1/groupXX/sensor";のようにして、他の班とかぶらないようにすること。
-const char* mquser   = "ex1";
-//const char* mqpass   = "***PASSWORD***"; // 講義システム（三浦担当講義用）を参照すること。
-const char* mqpass   = ""; // 講義システム（三浦担当講義用）を参照すること。
-WiFiClient wifiClient;
-char* clientid = "m5stickc01_00000001"; //デバイス個別に設定すればなんでもよい
-PubSubClient mqttClient(wifiClient); // MQTT Client
-
-void setup() {
-  // M5.begin();
-  Serial.begin(115200);
-  WiFi.begin(ssid, password);
-  while (WiFi.status() != WL_CONNECTED) { // 接続中...
-    Serial.print(".");
-    delay(200);
-  }
-  Serial.println( WiFi.localIP().toString() ); //取得したIPアドレス
-  // 参考：WiFiデバイスのMACアドレスを取得し、clientid として用いる
-  // (18行目のclientidの定義を変更し、char clientid[20]とするのがのぞましい)
-  //  uint8_t mac[6];
-  //  esp_read_mac(mac, ESP_MAC_WIFI_STA);
-  //  sprintf(clientid, "%02X:%02X:%02X:%02X:%02X:%02X",
-  //          mac[0], mac[1], mac[2], mac[3], mac[4], mac[5] );
-  mqttClient.setServer(server, port);
-
-  if (!mqttClient.connected()) {
-    Serial.println("Try (re)connecting...");
-    reconnect();
-  }
-}
-
-void loop() {
-  // シリアルコンソールから書き込みがあれば, publishする
-  byte mbuf[100];  int pos = 0;
-  while (Serial.available()) { // ノンブロッキング
-    mbuf[pos]  = Serial.read();
-    pos++;
-  }
-  if (pos > 0) {
-    mbuf[pos-1] = 0; //改行をNULLに置き換える
-    Serial.println((char*)mbuf);
-    // ブローカにデータを送信する。最後の false を true にすると、retained になる。
-    bool ret = mqttClient.publish(pubTopic, mbuf, pos-1, false); 
-    if (!ret){
-      Serial.println("publish failed.");
-    }
-  }
-  delay(10);
-}
-
-void reconnect() {
-  while (!mqttClient.connected()) {
-    if (mqttClient.connect(clientid, mquser, mqpass)) {
-      Serial.println("Connected to MQTT Broker.");
-    } else {
-      Serial.printf("Connect Failed. state=%d", mqttClient.state());
-    }
-  }
-}
+// MQTT Publisher example 
+//#include <M5StickCPlus.h>
+#include <WiFi.h>
+// ライブラリで PubSubClient をいれておく ★★★ 重要 ★★★
+#include <PubSubClient.h>
+
+const char* ssid = "miura2g";
+const char* password = "jikken2022";
+
+const char* server = "192.168.11.11"; // "mqtt.istlab.info";
+const int   port     = 1883;                   // 注：学内ネットワークはポート制限あり。
+const char* pubTopic = "office/temp"; //"ex1/groupXX/sensor";のようにして、他の班とかぶらないようにすること。
+const char* mquser   = "ex1";
+//const char* mqpass   = "***PASSWORD***"; // 講義システム（三浦担当講義用）を参照すること。
+const char* mqpass   = ""; // 講義システム（三浦担当講義用）を参照すること。
+WiFiClient wifiClient;
+char* clientid = "m5stickc01_00000001"; //デバイス個別に設定すればなんでもよい
+PubSubClient mqttClient(wifiClient); // MQTT Client
+
+void setup() {
+  // M5.begin();
+  Serial.begin(115200);
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) { // 接続中...
+    Serial.print(".");
+    delay(200);
+  }
+  Serial.println( WiFi.localIP().toString() ); //取得したIPアドレス
+  // 参考：WiFiデバイスのMACアドレスを取得し、clientid として用いる
+  // (18行目のclientidの定義を変更し、char clientid[20]とするのがのぞましい)
+  //  uint8_t mac[6];
+  //  esp_read_mac(mac, ESP_MAC_WIFI_STA);
+  //  sprintf(clientid, "%02X:%02X:%02X:%02X:%02X:%02X",
+  //          mac[0], mac[1], mac[2], mac[3], mac[4], mac[5] );
+  mqttClient.setServer(server, port);
+
+  if (!mqttClient.connected()) {
+    Serial.println("Try (re)connecting...");
+    reconnect();
+  }
+}
+
+void loop() {
+  // シリアルコンソールから書き込みがあれば, publishする
+  byte mbuf[100];  int pos = 0;
+  while (Serial.available()) { // ノンブロッキング
+    mbuf[pos]  = Serial.read();
+    pos++;
+  }
+  if (pos > 0) {
+    mbuf[pos-1] = 0; //改行をNULLに置き換える
+    Serial.println((char*)mbuf);
+    // ブローカにデータを送信する。最後の false を true にすると、retained になる。
+    bool ret = mqttClient.publish(pubTopic, mbuf, pos-1, false); 
+    if (!ret){
+      Serial.println("publish failed.");
+    }
+  }
+  delay(10);
+}
+
+void reconnect() {
+  while (!mqttClient.connected()) {
+    if (mqttClient.connect(clientid, mquser, mqpass)) {
+      Serial.println("Connected to MQTT Broker.");
+    } else {
+      Serial.printf("Connect Failed. state=%d", mqttClient.state());
+    }
+  }
+}
+
diff --git a/SampleSrc/mqtt01sub.ino b/SampleSrc/mqtt01sub.ino
index 6852c61..5504f02 100644
--- a/SampleSrc/mqtt01sub.ino
+++ b/SampleSrc/mqtt01sub.ino
@@ -1,82 +1,83 @@
-// MQTT Subscriber example 
-// #include <M5StickCPlus.h>
-#include <WiFi.h>
-// ライブラリで PubSubClient をいれておく ★★★ 重要 ★★★
-#include <PubSubClient.h>
-// ライブラリで ArduinoJson v6.xをいれておく ★★★ 重要 ★★★
-//        (注意：Arduino_Json v0.1.0 は別物)
-#include <ArduinoJson.h>
-
-const char* ssid = "miura2g";
-const char* password = "jikken2022";
-
-const char* server = "192.168.11.11"; // "mqtt.istlab.info";
-const int   port     = 1883;                   // 注：学内ネットワークはポート制限あり。
-const char* pubTopic = "office/temp"; // 例： ex1/groupXX/sensor 
-const char* mquser   = "ex1";
-const char* mqpass   = "***PASSWORD***";
-WiFiClient wifiClient;
-char* clientid = "m5stickc01_00000001"; //デバイス個別に設定すればなんでもよい
-PubSubClient mqttClient(wifiClient); // MQTT Client
-
-void setup() {
-//  M5.begin();
-  Serial.begin(115200);
-  WiFi.begin(ssid, password);
-  while (WiFi.status() != WL_CONNECTED) { // 接続中...
-    Serial.print(".");
-    delay(200);
-  }
-  Serial.println( WiFi.localIP().toString() ); //取得したIPアドレス
-  // 参考：WiFiデバイスのMACアドレスを取得し、clientid として用いる
-  // (18行目のclientidの定義を変更し、char clientid[20]とするのがのぞましい)
-  //  uint8_t mac[6];
-  //  esp_read_mac(mac, ESP_MAC_WIFI_STA);
-  //  sprintf(clientid, "%02X:%02X:%02X:%02X:%02X:%02X",
-  //          mac[0], mac[1], mac[2], mac[3], mac[4], mac[5] );
-  mqttClient.setServer(server, port);
-  mqttClient.setCallback(callback_on_subscribe);
-
-  if (!mqttClient.connected()) {
-    Serial.println("Try (re)connecting...");
-    reconnect();
-  }
-  mqttClient.subscribe(pubTopic);
-
-}
-
-void loop() {
-
-  mqttClient.loop(); // データがpublishされたら、callback_on_subscribe が呼ばれる
-
-  delay(100);
-}
-
-void reconnect() {
-  while (!mqttClient.connected()) {
-    if (mqttClient.connect(clientid, mquser, mqpass)) {
-      Serial.println("Connected to MQTT Broker.");
-    } else {
-      Serial.printf("Connect Failed. state=%d", mqttClient.state());
-    }
-  }
-}
-
-// データがPublishされたら、ここが実行される。（39行目でコールバック関数を設定しているため）
-void callback_on_subscribe(char* topic, byte* payload, unsigned int len) {
-  char buf[100];
-  Serial.print("Message arrived [");
-  Serial.print(topic);
-  Serial.print("] ");
-  for (int i = 0; i < len ; i++) {
-    buf[i] = (char)payload[i];
-  }
-  buf[len] = 0;
-  Serial.println(buf);
-  return;
-  //  参考：JSON Parsing example
-  //  StaticJsonDocument<200> sjdoc;
-  //  deserializeJson(sjdoc, buf);
-  //  int intval = sjdoc["intval"];
-  //  const char* str = sjdoc["string"];
-}
\ No newline at end of file
+// MQTT Subscriber example 
+// #include <M5StickCPlus.h>
+#include <WiFi.h>
+// ライブラリで PubSubClient をいれておく ★★★ 重要 ★★★
+#include <PubSubClient.h>
+// ライブラリで ArduinoJson v6.xをいれておく ★★★ 重要 ★★★
+//        (注意：Arduino_Json v0.1.0 は別物)
+#include <ArduinoJson.h>
+
+const char* ssid = "miura2g";
+const char* password = "jikken2022";
+
+const char* server = "192.168.11.11"; // "mqtt.istlab.info";
+const int   port     = 1883;                   // 注：学内ネットワークはポート制限あり。
+const char* pubTopic = "office/temp"; // 例： ex1/groupXX/sensor 
+const char* mquser   = "ex1";
+const char* mqpass   = "***PASSWORD***";
+WiFiClient wifiClient;
+char* clientid = "m5stickc01_00000001"; //デバイス個別に設定すればなんでもよい
+PubSubClient mqttClient(wifiClient); // MQTT Client
+
+void setup() {
+//  M5.begin();
+  Serial.begin(115200);
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) { // 接続中...
+    Serial.print(".");
+    delay(200);
+  }
+  Serial.println( WiFi.localIP().toString() ); //取得したIPアドレス
+  // 参考：WiFiデバイスのMACアドレスを取得し、clientid として用いる
+  // (18行目のclientidの定義を変更し、char clientid[20]とするのがのぞましい)
+  //  uint8_t mac[6];
+  //  esp_read_mac(mac, ESP_MAC_WIFI_STA);
+  //  sprintf(clientid, "%02X:%02X:%02X:%02X:%02X:%02X",
+  //          mac[0], mac[1], mac[2], mac[3], mac[4], mac[5] );
+  mqttClient.setServer(server, port);
+  mqttClient.setCallback(callback_on_subscribe);
+
+  if (!mqttClient.connected()) {
+    Serial.println("Try (re)connecting...");
+    reconnect();
+  }
+  mqttClient.subscribe(pubTopic);
+
+}
+
+void loop() {
+
+  mqttClient.loop(); // データがpublishされたら、callback_on_subscribe が呼ばれる
+
+  delay(100);
+}
+
+void reconnect() {
+  while (!mqttClient.connected()) {
+    if (mqttClient.connect(clientid, mquser, mqpass)) {
+      Serial.println("Connected to MQTT Broker.");
+    } else {
+      Serial.printf("Connect Failed. state=%d", mqttClient.state());
+    }
+  }
+}
+
+// データがPublishされたら、ここが実行される。（39行目でコールバック関数を設定しているため）
+void callback_on_subscribe(char* topic, byte* payload, unsigned int len) {
+  char buf[100];
+  Serial.print("Message arrived [");
+  Serial.print(topic);
+  Serial.print("] ");
+  for (int i = 0; i < len ; i++) {
+    buf[i] = (char)payload[i];
+  }
+  buf[len] = 0;
+  Serial.println(buf);
+  return;
+  //  参考：JSON Parsing example
+  //  StaticJsonDocument<200> sjdoc;
+  //  deserializeJson(sjdoc, buf);
+  //  int intval = sjdoc["intval"];
+  //  const char* str = sjdoc["string"];
+}
+
diff --git a/SampleSrc/ntp01.ino b/SampleSrc/ntp01.ino
index f8c8868..ccda88a 100644
--- a/SampleSrc/ntp01.ino
+++ b/SampleSrc/ntp01.ino
@@ -1,31 +1,33 @@
-#include <WiFi.h>
-
-const char* ssid = "miura2g";
-const char* password = "jikken2022";
-
-void setup() {
-  Serial.begin(115200);
-  WiFi.begin(ssid, password);
-  while (WiFi.status() != WL_CONNECTED) { // 接続中...
-    Serial.print(".");
-  }
-//  char* ntpserver = "ntp.nict.jp"; // 学内のNetworkを利用するときは、10.64.7.184 にする
-  char* ntpserver = "192.168.11.11"; // 学内のNetworkを利用するときは、10.64.7.184 にする
-  configTime(9 * 3600, 0, ntpserver);//GMTとの時差(秒) が9*3600, サマータイムで進める時間(秒)が0
-}
-
-void loop() {
-  struct tm localTime;
-  char buf[30];
-  getLocalTime(&localTime);
-  sprintf(buf, ">> %04d/%02d/%02d  %02d:%02d:%02d",
-          localTime.tm_year + 1900,
-          localTime.tm_mon + 1,
-          localTime.tm_mday,
-          localTime.tm_hour,
-          localTime.tm_min,
-          localTime.tm_sec
-         );
-  Serial.println(buf);
-  delay(1000);
-}
\ No newline at end of file
+#include <WiFi.h>
+
+const char* ssid = "miura2g";
+const char* password = "jikken2022";
+
+void setup() {
+  Serial.begin(115200);
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) { // 接続中...
+    Serial.print(".");
+    delay(150);
+  }
+  char* ntpserver = "ntp.nict.jp"; // 学内のNetworkを利用するときは、10.64.7.184 にする
+  //  char* ntpserver = "192.168.11.11"; // 学内のNetworkを利用するときは、10.64.7.184 にする
+  configTime(9 * 3600, 0, ntpserver);//GMTとの時差(秒) が9*3600, サマータイムで進める時間(秒)が0
+}
+
+void loop() {
+  struct tm localTime;
+  char buf[30];
+  getLocalTime(&localTime);
+  sprintf(buf, ">> %04d/%02d/%02d  %02d:%02d:%02d",
+  localTime.tm_year + 1900,
+  localTime.tm_mon + 1,
+  localTime.tm_mday,
+  localTime.tm_hour,
+  localTime.tm_min,
+  localTime.tm_sec
+  );
+  Serial.println(buf);
+  delay(1000);
+}
+
diff --git a/SampleSrc/pref01.ino b/SampleSrc/pref01.ino
index a86d7cc..3805932 100644
--- a/SampleSrc/pref01.ino
+++ b/SampleSrc/pref01.ino
@@ -1,55 +1,56 @@
-#include <M5StickCPlus.h>
-#include <Preferences.h>
-
-Preferences pref;
-
-int count = 0;
-void setup() {
-  M5.begin();
-  M5.Lcd.setRotation(0); //縦型
-  M5.Lcd.fillScreen(CYAN);
-  M5.Lcd.setTextSize(2);
-  loadCount(&count);
-  M5.Beep.tone(2000, 500);
-  M5.Lcd.printf("count = %d\n", count);
-}
-
-void loop() {
-  M5.Beep.update();
-  M5.update();
-  if (M5.BtnA.wasReleasefor(1000) ) { // Aボタン長押し
-    count = 0;
-    saveCount(&count);
-    M5.Beep.tone(1200, 300);
-    M5.Lcd.printf("count = %d\n", count);
-  } else if (M5.BtnA.wasReleased()) { // Aボタン押し
-    count++ ;
-    saveCount(&count);
-    M5.Beep.tone(2000, 300);
-    M5.Lcd.printf("count = %d\n", count);
-  } else if (M5.BtnB.wasReleased()) { // Bボタン押し
-    reboot();
-  } else if (M5.Axp.GetBtnPress() == 2) { // 電源ボタン押し
-    poweroff();
-  }
-  delay(50);
-}
-
-void loadCount(int *c) {
-  pref.begin("mydata", false);
-  *c = pref.getInt("count");
-  pref.end();
-}
-void saveCount(int *c) {
-  pref.begin("mydata", false);
-  pref.putInt("count", *c);
-  pref.end();
-}
-
-void poweroff() {
-  M5.Axp.Write1Byte(0x32, M5.Axp.Read8bit(0x32) | 0x80);//PowerOff
-}
-
-void reboot() {
-  ESP.restart();
-}
\ No newline at end of file
+#include <M5StickCPlus.h>
+#include <Preferences.h>
+
+Preferences pref;
+
+int count = 0;
+void setup() {
+  M5.begin(115200);
+  M5.Lcd.setRotation(0); //縦型
+  M5.Lcd.fillScreen(CYAN);
+  M5.Lcd.setTextSize(2);
+  loadCount(&count);
+  M5.Beep.tone(2000, 500);
+  M5.Lcd.printf("count = %d\n", count);
+}
+
+void loop() {
+  M5.Beep.update();
+  M5.update();
+  if (M5.BtnA.wasReleasefor(1000) ) { // Aボタン長押し
+    count = 0;
+    saveCount(&count);
+    M5.Beep.tone(1200, 300);
+    M5.Lcd.printf("count = %d\n", count);
+  } else if (M5.BtnA.wasReleased()) { // Aボタン押し
+    count++ ;
+    saveCount(&count);
+    M5.Beep.tone(2000, 300);
+    M5.Lcd.printf("count = %d\n", count);
+  } else if (M5.BtnB.wasReleased()) { // Bボタン押し
+    reboot();
+  } else if (M5.Axp.GetBtnPress() == 2) { // 電源ボタン押し
+    poweroff();
+  }
+  delay(50);
+}
+
+void loadCount(int *c) {
+  pref.begin("mydata", false);
+  *c = pref.getInt("count");
+  pref.end();
+}
+void saveCount(int *c) {
+  pref.begin("mydata", false);
+  pref.putInt("count", *c);
+  pref.end();
+}
+
+void poweroff() {
+  M5.Axp.Write1Byte(0x32, M5.Axp.Read8bit(0x32) | 0x80);//PowerOff
+}
+
+void reboot() {
+  ESP.restart();
+}
+
diff --git a/SampleSrc/rtc01.ino b/SampleSrc/rtc01.ino
index b3b6d92..53b3b18 100644
--- a/SampleSrc/rtc01.ino
+++ b/SampleSrc/rtc01.ino
@@ -1,64 +1,65 @@
-#include <M5StickCPlus.h>
-#include <WiFi.h>
-// #include "time.h"
-
-#define USE_NTP 1   // NTPからRTCに時刻設定するなら1
-
-void setRTCfromLT(struct tm lt) {
-  RTC_DateTypeDef DateStruct;
-  DateStruct.Year = lt.tm_year + 1900;
-  DateStruct.Month = lt.tm_mon + 1;
-  DateStruct.Date = lt.tm_mday;
-  DateStruct.WeekDay = lt.tm_wday;
-  M5.Rtc.SetData(&DateStruct);
-
-  RTC_TimeTypeDef TimeStruct;
-  TimeStruct.Hours   = lt.tm_hour;
-  TimeStruct.Minutes = lt.tm_min;
-  TimeStruct.Seconds = lt.tm_sec+1;
-  M5.Rtc.SetTime(&TimeStruct);
-}
-
-void getRTC(char* buf) {
-  RTC_DateTypeDef DateStruct;
-  RTC_TimeTypeDef TimeStruct;
-  M5.Rtc.GetData(&DateStruct);
-  M5.Rtc.GetTime(&TimeStruct);
-  sprintf(buf, "%04d/%02d/%02d %02d:%02d:%02d",
-          DateStruct.Year,  DateStruct.Month,   DateStruct.Date,
-          TimeStruct.Hours, TimeStruct.Minutes, TimeStruct.Seconds
-         );
-}
-
-void setup() {
-  M5.begin();
-  M5.Lcd.setRotation(3);
-  Serial.begin(115200);
-
-  if (USE_NTP) {
-    const char* ssid = "miura2g";
-    const char* password = "jikken2022";
-    const char* ntpserver = "192.168.11.11"; // or ntp.nict.jp"; // or 10.64.7.184 for CIT-ap1x
-    WiFi.begin(ssid, password);
-    while (WiFi.status() != WL_CONNECTED) { // 接続中...
-      Serial.print(".");
-    }
-    configTime(9 * 3600, 0, ntpserver);
-
-    struct tm localTime;
-    while (localTime.tm_year < 80) {
-      getLocalTime(&localTime); delay(50);
-    }
-    setRTCfromLT(localTime);
-  }
-}
-
-void loop() {
-  char buf[30];
-  getRTC(buf); // bufに、日時文字列を書き込む
-  Serial.println(buf);
-  M5.Lcd.fillScreen(BLUE);
-  M5.Lcd.setCursor(0, 50, 4);
-  M5.Lcd.println(buf);
-  delay(1000);
-}
\ No newline at end of file
+#include <M5StickCPlus.h>
+#include <WiFi.h>
+// #include "time.h"
+
+#define USE_NTP 1   // NTPからRTCに時刻設定するなら1
+
+void setRTCfromLT(struct tm lt) {
+  RTC_DateTypeDef DateStruct;
+  DateStruct.Year = lt.tm_year + 1900;
+  DateStruct.Month = lt.tm_mon + 1;
+  DateStruct.Date = lt.tm_mday;
+  DateStruct.WeekDay = lt.tm_wday;
+  M5.Rtc.SetData(&DateStruct);
+  
+  RTC_TimeTypeDef TimeStruct;
+  TimeStruct.Hours   = lt.tm_hour;
+  TimeStruct.Minutes = lt.tm_min;
+  TimeStruct.Seconds = lt.tm_sec+1;
+  M5.Rtc.SetTime(&TimeStruct);
+}
+
+void getRTC(char* buf) {
+  RTC_DateTypeDef DateStruct;
+  RTC_TimeTypeDef TimeStruct;
+  M5.Rtc.GetData(&DateStruct);
+  M5.Rtc.GetTime(&TimeStruct);
+  sprintf(buf, "%04d/%02d/%02d %02d:%02d:%02d",
+  DateStruct.Year,  DateStruct.Month,   DateStruct.Date,
+  TimeStruct.Hours, TimeStruct.Minutes, TimeStruct.Seconds
+  );
+}
+
+void setup() {
+  M5.begin(115200);
+  M5.Lcd.setRotation(3);
+  
+  if (USE_NTP) {
+    const char* ssid = "miura2g";
+    const char* password = "jikken2022";
+    const char* ntpserver = "192.168.11.11"; // or ntp.nict.jp"; // or 10.64.7.184 for CIT-ap1x
+    WiFi.begin(ssid, password);
+    while (WiFi.status() != WL_CONNECTED) { // 接続中...
+      Serial.print(".");
+      delay(250);
+    }
+    configTime(9 * 3600, 0, ntpserver);
+    
+    struct tm localTime;
+    while (localTime.tm_year < 80) {
+      getLocalTime(&localTime); delay(50);
+    }
+    setRTCfromLT(localTime);
+  }
+}
+
+void loop() {
+  char buf[30];
+  getRTC(buf); // bufに、日時文字列を書き込む
+  Serial.println(buf);
+  M5.Lcd.fillScreen(BLUE);
+  M5.Lcd.setCursor(0, 50, 4);
+  M5.Lcd.println(buf);
+  delay(1000);
+}
+
diff --git a/SampleSrc/serial03.ino b/SampleSrc/serial03.ino
index a7300d1..b358a72 100644
--- a/SampleSrc/serial03.ino
+++ b/SampleSrc/serial03.ino
@@ -18,13 +18,13 @@
 
 void setup()
 {
-    M5.begin(); // M5StickCPlusの初期化処理
+    M5.begin(115200); // M5StickCPlusの初期化処理
     M5.Lcd.setRotation(3); // Aボタンが左側になる向きで画面を使用するよう設定
     M5.Lcd.fillScreen(BLACK); // 画面を黒く塗りつぶす
     M5.Lcd.setCursor(0, 0, 2); // 左から0,上から0ピクセルの位置にフォントサイズ2の文字を出力するよう設定
     M5.Lcd.println("Serial Input Test");
     M5.Lcd.println("--------------------------------------");
-    Serial.begin(115200); // シリアル通信を開始する
+//    Serial.begin(115200); // シリアル通信を開始する
     
 }
 
@@ -60,3 +60,4 @@
   digitalWrite(PIN, 1); // HIGH = 1, LOW = 0
   vTaskDelete(NULL); // 自タスクを削除する
 }
+
diff --git a/SampleSrc/sketch_feb25a.ino b/SampleSrc/sketch_feb25a.ino
deleted file mode 100644
index 95c2b6e..0000000
--- a/SampleSrc/sketch_feb25a.ino
+++ /dev/null
@@ -1,9 +0,0 @@
-void setup() {
-  // put your setup code here, to run once:
-
-}
-
-void loop() {
-  // put your main code here, to run repeatedly:
-
-}
diff --git a/SampleSrc/sound01.ino b/SampleSrc/sound01.ino
index f468876..9bed73c 100644
--- a/SampleSrc/sound01.ino
+++ b/SampleSrc/sound01.ino
@@ -1,34 +1,35 @@
-#include <M5StickCPlus.h>
-
-int f[28] = { 262, 294, 330, 349, 392, 440, 494 }; // 配列のサイズは4オクターブ分
-void setup() {
-  Serial.begin(115200);
-  M5.begin();
-  M5.Lcd.setRotation(3);
-  for (int i = 0; i < 7; i++) {
-    f[i + 7]  = f[i] * 2;
-    f[i + 14] = f[i] * 4;
-    f[i + 21] = f[i] * 8;
-  }
-  // setBeep( Hz, ms) でビープ音を設定して、beep()で鳴らす。
-  M5.Beep.setBeep(523, 500);  M5.Beep.beep();  delay(500);
-  // tone( Hz, ms ) で鳴らす方法
-  M5.Beep.tone(1046, 500);  delay(500);
-  // msを省略し、tone( Hz ) で鳴らす（結局、delayが必要になるので）
-  M5.Beep.tone(2092);  delay(500);
-  // ここはmsを指定するとよい (loopのM5.Beep.updateが停めてくれるので、delayを省略できる)
-  M5.Beep.tone(2092 * 2, 1000);
-}
-
-void loop() {
-  M5.Beep.update(); //tone()やsetBeep()で指定した時間を過ぎていたら音を止める。
-  //                  M5.Beep.mute() とすると、すぐに停止する。
-
-  while (Serial.available()) {
-    char c = Serial.read();
-    if (c < 'c' || 'z' < c) continue; // c〜zの文字以外なら、以降のwhile内処理をスキップ
-    M5.Beep.tone( f[c - 'c'] , 1000); // 1秒鳴らす
-    Serial.println( f[c - 'c'] );
-  }
-  delay(50);
-}
+#include <M5StickCPlus.h>
+
+int f[28] = { 262, 294, 330, 349, 392, 440, 494 }; // 配列のサイズは4オクターブ分
+void setup() {
+  M5.begin(115200);
+  M5.Lcd.setRotation(3);
+  for (int i = 0; i < 7; i++) {
+    f[i + 7]  = f[i] * 2;
+    f[i + 14] = f[i] * 4;
+    f[i + 21] = f[i] * 8;
+  }
+  // setBeep( Hz, ms) でビープ音を設定して、beep()で鳴らす。
+  M5.Beep.setBeep(523, 500);  M5.Beep.beep();  delay(500);
+  // tone( Hz, ms ) で鳴らす方法
+  M5.Beep.tone(1046, 500);  delay(500);
+  // msを省略し、tone( Hz ) で鳴らす（結局、delayが必要になるので）
+  M5.Beep.tone(2092);  delay(500);
+  // ここはmsを指定するとよい (loopのM5.Beep.updateが停めてくれるので、delayを省略できる)
+  M5.Beep.tone(2092 * 2, 1000);
+  Serial.println("Input [c] -- [z] character.");
+}
+
+void loop() {
+  M5.Beep.update(); //tone()やsetBeep()で指定した時間を過ぎていたら音を止める。
+  //                  M5.Beep.mute() とすると、すぐに停止する。
+  
+  while (Serial.available()) {
+    char c = Serial.read();
+    if (c < 'c' || 'z' < c) continue; // c〜zの文字以外なら、以降のwhile内処理をスキップ
+    M5.Beep.tone( f[c - 'c'] , 1000); // 1秒鳴らす
+    Serial.printf( "%d Hz\n", f[c - 'c'] );
+  }
+  delay(50);
+}
+
diff --git a/SampleSrc/speakerhat01.ino b/SampleSrc/speakerhat01.ino
index a369b31..b37cb07 100644
--- a/SampleSrc/speakerhat01.ino
+++ b/SampleSrc/speakerhat01.ino
@@ -1,55 +1,56 @@
-#include <M5StickCPlus.h>
-
-const int servo_pin = 26;
-uint8_t ledChannel = 0;
-uint8_t resolution = 8;
-uint32_t sampling_rate = 16000; //16kの場合。8kの場合は、8000
-
-/*
-    別ファイル（ファイル名拡張子は.ino）に、音声データを以下の形式で貼っておく。
-    【音1】
-    const uint8_t coin05_8k_raw[] PROGMEM = { 0x80, ... };
-    const uint32_t coin05_8k_raw_len = 7218; // ←配列のサイズ
-    【音2】
-    const uint8_t coin05_16k_raw[] PROGMEM = { 0x80, ... };
-    const uint32_t coin05_16k_raw_len = 14437; // ←配列のサイズ
-    PROGMEM と書くと、フラッシュメモリに配置する
-
-    そのうえで、以下のextern文を、別タブの変数名と合わせて書く。
-    変数名を一致させることが重要です。
-*/
-//    【音1】
-extern const uint8_t coin05_8k_raw[];
-extern const uint32_t coin05_8k_raw_len;
-//    【音2】
-extern const uint8_t coin05_16k_raw[];
-extern const uint32_t coin05_16k_raw_len;
-
-void setup() {
-  // put your setup code here, to run once:
-  M5.begin();
-  M5.Lcd.setRotation(3);
-  M5.Lcd.setCursor(0, 30, 4);
-  M5.Lcd.println(" speaker hat test");
-  ledcSetup(ledChannel, sampling_rate * 32, resolution);
-  ledcAttachPin(servo_pin, ledChannel);
-  ledcWrite(ledChannel, 0);
-}
-void playMusic(const uint8_t* music_data, uint32_t len, uint16_t sample_rate) {
-  uint32_t delay_interval = ((uint32_t)1000000 / sample_rate);
-  for (int i = 0; i < len; i++) {
-    ledcWrite(ledChannel, music_data[i]);
-    delayMicroseconds(delay_interval);
-  }
-  ledcWriteTone(ledChannel, 0);
-}
-void loop() {
-  M5.update();
-  if (M5.BtnA.wasReleased()) {
-    playMusic(coin05_16k_raw, coin05_16k_raw_len, sampling_rate + 800); //なぜか音が低いので +800した
-  } else if (M5.BtnB.wasReleased()) {
-    playMusic(coin05_8k_raw, coin05_8k_raw_len, sampling_rate / 2); // 8kなので、2で割った
-  }
-  ledcWriteTone(ledChannel, 0);
-  delay(100);
-}
\ No newline at end of file
+#include <M5StickCPlus.h>
+
+const int servo_pin = 26;
+uint8_t ledChannel = 0;
+uint8_t resolution = 8;
+uint32_t sampling_rate = 16000; //16kの場合。8kの場合は、8000
+
+/*
+    別ファイル（ファイル名拡張子は.ino）に、音声データを以下の形式で貼っておく。
+    【音1】
+    const uint8_t coin05_8k_raw[] PROGMEM = { 0x80, ... };
+    const uint32_t coin05_8k_raw_len = 7218; // ←配列のサイズ
+    【音2】
+    const uint8_t coin05_16k_raw[] PROGMEM = { 0x80, ... };
+    const uint32_t coin05_16k_raw_len = 14437; // ←配列のサイズ
+    PROGMEM と書くと、フラッシュメモリに配置する
+
+    そのうえで、以下のextern文を、別タブの変数名と合わせて書く。
+    変数名を一致させることが重要です。
+*/
+//    【音1】
+extern const uint8_t coin05_8k_raw[];
+extern const uint32_t coin05_8k_raw_len;
+//    【音2】
+extern const uint8_t coin05_16k_raw[];
+extern const uint32_t coin05_16k_raw_len;
+
+void setup() {
+  // put your setup code here, to run once:
+  M5.begin(115200);
+  M5.Lcd.setRotation(3);
+  M5.Lcd.setCursor(0, 30, 4);
+  M5.Lcd.println(" speaker hat test");
+  ledcSetup(ledChannel, sampling_rate * 32, resolution);
+  ledcAttachPin(servo_pin, ledChannel);
+  ledcWrite(ledChannel, 0);
+}
+void playMusic(const uint8_t* music_data, uint32_t len, uint16_t sample_rate) {
+  uint32_t delay_interval = ((uint32_t)1000000 / sample_rate);
+  for (int i = 0; i < len; i++) {
+    ledcWrite(ledChannel, music_data[i]);
+    delayMicroseconds(delay_interval);
+  }
+  ledcWriteTone(ledChannel, 0);
+}
+void loop() {
+  M5.update();
+  if (M5.BtnA.wasReleased()) {
+    playMusic(coin05_16k_raw, coin05_16k_raw_len, sampling_rate + 800); //なぜか音が低いので +800した
+  } else if (M5.BtnB.wasReleased()) {
+    playMusic(coin05_8k_raw, coin05_8k_raw_len, sampling_rate / 2); // 8kなので、2で割った
+  }
+  ledcWriteTone(ledChannel, 0);
+  delay(100);
+}
+
diff --git a/SampleSrc/sprite01.ino b/SampleSrc/sprite01.ino
index bcc0fb8..8c34185 100644
--- a/SampleSrc/sprite01.ino
+++ b/SampleSrc/sprite01.ino
@@ -1,39 +1,40 @@
-#include <M5StickCPlus.h>
-
-int USE_SPRITE = 0 ; //スプライトを使用するとき1
-
-TFT_eSprite spu = TFT_eSprite(&M5.Lcd); // Sprite object
-
-void setup() {
-  M5.begin();
-  M5.Lcd.setRotation(3);
-
-  spu.setColorDepth(8);
-  spu.createSprite(240, 135);
-
-  randomSeed(analogRead(0));
-}
-
-void loop() {
-  int r = random(100000);
-  if ( USE_SPRITE ) {
-    spu.fillSprite( CYAN );
-    spu.setCursor(30, 34, 4);  spu.setTextSize(2);
-    spu.setTextColor( WHITE, BLUE );
-    spu.printf("  %d  \n Sprite ", r );
-    spu.pushSprite(0, 0);
-  } else {
-    M5.Lcd.fillScreen( CYAN );
-    M5.Lcd.setCursor(30, 34, 4);  M5.Lcd.setTextSize(2);
-    M5.Lcd.setTextColor( WHITE, BLUE );
-    M5.Lcd.printf("  %d  \n LCD ", r);
-  }
-
-  M5.update();
-  if (M5.BtnA.wasReleased()) {
-    USE_SPRITE = 1 - USE_SPRITE ; // スプライト使用の切り替え(1なら0、0なら1)
-    M5.Beep.tone(1000 + 1000 * USE_SPRITE, 500);
-  }
-  M5.Beep.update();
-  delay(100);
-}
\ No newline at end of file
+#include <M5StickCPlus.h>
+
+int USE_SPRITE = 0 ; //スプライトを使用するとき1
+
+TFT_eSprite spu = TFT_eSprite(&M5.Lcd); // Sprite object
+
+void setup() {
+  M5.begin(115200);
+  M5.Lcd.setRotation(3);
+
+  spu.setColorDepth(8);
+  spu.createSprite(240, 135);
+
+  randomSeed(analogRead(0));
+}
+
+void loop() {
+  int r = random(100000);
+  if ( USE_SPRITE ) {
+    spu.fillSprite( CYAN );
+    spu.setCursor(30, 34, 4);  spu.setTextSize(2);
+    spu.setTextColor( WHITE, BLUE );
+    spu.printf("  %d  \n Sprite ", r );
+    spu.pushSprite(0, 0);
+  } else {
+    M5.Lcd.fillScreen( CYAN );
+    M5.Lcd.setCursor(30, 34, 4);  M5.Lcd.setTextSize(2);
+    M5.Lcd.setTextColor( WHITE, BLUE );
+    M5.Lcd.printf("  %d  \n LCD ", r);
+  }
+
+  M5.update();
+  if (M5.BtnA.wasReleased()) {
+    USE_SPRITE = 1 - USE_SPRITE ; // スプライト使用の切り替え(1なら0、0なら1)
+    M5.Beep.tone(1000 + 1000 * USE_SPRITE, 500);
+  }
+  M5.Beep.update();
+  delay(100);
+}
+
diff --git a/SampleSrc/str01.ino b/SampleSrc/str01.ino
index 9e3d177..381ad56 100644
--- a/SampleSrc/str01.ino
+++ b/SampleSrc/str01.ino
@@ -1,8 +1,7 @@
 #include <M5StickCPlus.h>
 
 void setup() {
-  Serial.begin(115200);
-  M5.begin();
+  M5.begin(115200);
   M5.Lcd.setRotation(3);
   Serial.println("整数 または 6文字の16進数(RRGGBB)を入力してください。");
   M5.Lcd.fillScreen( getColorUInt16( 255 , 255 , 200 ) );
@@ -72,3 +71,4 @@
 }
 
 
+
diff --git a/SampleSrc/task01.ino b/SampleSrc/task01.ino
index 0a4aec8..4262fce 100644
--- a/SampleSrc/task01.ino
+++ b/SampleSrc/task01.ino
@@ -1,70 +1,71 @@
-#include <M5StickCPlus.h>
-
-int interval_msec[] = { 333, 1000, 2000 }; // Led, Lcd, Beep
-TaskHandle_t tH[3];
-
-void ledTask(void *pvParam) {
-  /** setup をここに書く **/
-  portTickType lastTime;
-  int PIN = 10;
-  pinMode(PIN, OUTPUT); // PINのモード設定
-  int highOrLow = 0;
-  for (;;) {
-    /** loop をここに書く **/
-    lastTime = xTaskGetTickCount();
-    vTaskDelayUntil(&lastTime, interval_msec[0] ); // 第2引数に、実行間隔ミリ秒を指定
-    digitalWrite(PIN, highOrLow); // HIGH = 1, LOW = 0
-    highOrLow = 1 - highOrLow; // HIGH <=> LOW を切り替える
-  }
-}
-
-void lcdTask(void *pvParam) {
-  /** setup をここに書く **/
-  portTickType lastTime;
-  M5.Lcd.setRotation(0);
-  M5.Lcd.fillScreen(GREEN);
-  M5.Lcd.setTextColor(WHITE, OLIVE);
-  M5.Lcd.setTextSize(2);
-  M5.Lcd.setCursor(0, 0);
-  int count = 0;
-  for (;;) {
-    /** loop をここに書く **/
-    M5.Lcd.printf("count=%d\n", count);
-    count++;
-    lastTime = xTaskGetTickCount();
-    vTaskDelayUntil(&lastTime, interval_msec[1] ); // 第2引数に、実行間隔ミリ秒を指定
-    if (count % 10 == 0) {
-      M5.Lcd.fillScreen(GREEN);
-      M5.Lcd.setCursor(0, 0);
-    }
-  }
-}
-
-void beepTask(void *pvParam) {
-  /** setup をここに書く **/
-  portTickType lastTime;
-  int f[8] = { 262, 294, 330, 349, 392, 440, 494, 524 };
-  int note = 0;
-  for (;;) {
-    /** loop をここに書く **/
-    lastTime = xTaskGetTickCount(); // ここでの時刻を変数に保存
-    M5.Beep.tone( f[note] );
-    delay(500); //0.5秒鳴らす
-    M5.Beep.mute();
-    note = (note+1)%8;
-    vTaskDelayUntil(&lastTime, interval_msec[2] ); 
-    // 途中の処理やdelayは含まず、「保存」時刻の2秒後まで待つ。
-  }
-}
-
-void setup() {
-  M5.begin();
-
-  xTaskCreatePinnedToCore(ledTask , "LedT", 4096, NULL, 1, &tH[0],  1/*<= CoreNo.*/ );
-  xTaskCreatePinnedToCore(lcdTask , "LcdT", 4096, NULL, 1, &tH[1],  1/*<= CoreNo.*/ );
-  xTaskCreatePinnedToCore(beepTask,"BeepT", 4096, NULL, 1, &tH[2],  0/*<= CoreNo.*/ );
-}
-
-void loop() {
-  delay(10);
-}
\ No newline at end of file
+#include <M5StickCPlus.h>
+
+int interval_msec[] = { 333, 1000, 2000 }; // Led, Lcd, Beep
+TaskHandle_t tH[3];
+
+void ledTask(void *pvParam) {
+  /** setup をここに書く **/
+  portTickType lastTime;
+  int PIN = 10;
+  pinMode(PIN, OUTPUT); // PINのモード設定
+  int highOrLow = 0;
+  for (;;) {
+    /** loop をここに書く **/
+    lastTime = xTaskGetTickCount();
+    vTaskDelayUntil(&lastTime, interval_msec[0] ); // 第2引数に、実行間隔ミリ秒を指定
+    digitalWrite(PIN, highOrLow); // HIGH = 1, LOW = 0
+    highOrLow = 1 - highOrLow; // HIGH <=> LOW を切り替える
+  }
+}
+
+void lcdTask(void *pvParam) {
+  /** setup をここに書く **/
+  portTickType lastTime;
+  M5.Lcd.setRotation(0);
+  M5.Lcd.fillScreen(GREEN);
+  M5.Lcd.setTextColor(WHITE, OLIVE);
+  M5.Lcd.setTextSize(2);
+  M5.Lcd.setCursor(0, 0);
+  int count = 0;
+  for (;;) {
+    /** loop をここに書く **/
+    M5.Lcd.printf("count=%d\n", count);
+    count++;
+    lastTime = xTaskGetTickCount();
+    vTaskDelayUntil(&lastTime, interval_msec[1] ); // 第2引数に、実行間隔ミリ秒を指定
+    if (count % 10 == 0) {
+      M5.Lcd.fillScreen(GREEN);
+      M5.Lcd.setCursor(0, 0);
+    }
+  }
+}
+
+void beepTask(void *pvParam) {
+  /** setup をここに書く **/
+  portTickType lastTime;
+  int f[8] = { 262, 294, 330, 349, 392, 440, 494, 524 };
+  int note = 0;
+  for (;;) {
+    /** loop をここに書く **/
+    lastTime = xTaskGetTickCount(); // ここでの時刻を変数に保存
+    M5.Beep.tone( f[note] );
+    delay(500); //0.5秒鳴らす
+    M5.Beep.mute();
+    note = (note+1)%8;
+    vTaskDelayUntil(&lastTime, interval_msec[2] ); 
+    // 途中の処理やdelayは含まず、「保存」時刻の2秒後まで待つ。
+  }
+}
+
+void setup() {
+  M5.begin(115200);
+
+  xTaskCreatePinnedToCore(ledTask , "LedT", 4096, NULL, 1, &tH[0],  1/*<= CoreNo.*/ );
+  xTaskCreatePinnedToCore(lcdTask , "LcdT", 4096, NULL, 1, &tH[1],  1/*<= CoreNo.*/ );
+  xTaskCreatePinnedToCore(beepTask,"BeepT", 4096, NULL, 1, &tH[2],  0/*<= CoreNo.*/ );
+}
+
+void loop() {
+  delay(10);
+}
+
diff --git a/SampleSrc/telnet01.ino b/SampleSrc/telnet01.ino
index 572ca6e..3b896bc 100644
--- a/SampleSrc/telnet01.ino
+++ b/SampleSrc/telnet01.ino
@@ -1,130 +1,131 @@
-// オリジナルのWifiTelnetToSerial を、改変しました。
-/*
-  WiFiTelnetToSerial - Example Transparent UART to Telnet Server for ESP32
-
-  Copyright (c) 2017 Hristo Gochkov. All rights reserved.
-  This file is part of the ESP32 WiFi library for Arduino environment.
-
-  This library is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Lesser General Public
-  License as published by the Free Software Foundation; either
-  version 2.1 of the License, or (at your option) any later version.
-
-  This library is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public
-  License along with this library; if not, write to the Free Software
-  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
-*/
-#include <WiFi.h>
-#include <WiFiMulti.h>
-
-WiFiMulti wifiMulti;
-
-//how many clients should be able to telnet to this ESP32
-#define MAX_SRV_CLIENTS 3
-const char* ssid = "miura2g";
-const char* password = "jikken2022";
-
-WiFiServer server(23);
-WiFiClient serverClients[MAX_SRV_CLIENTS];
-
-void setup() {
-  Serial.begin(115200);
-  Serial.println("\nConnecting");
-
-  wifiMulti.addAP(ssid, password);
-  //  wifiMulti.addAP("ssid_from_AP_2", "your_password_for_AP_2");
-  //  wifiMulti.addAP("ssid_from_AP_3", "your_password_for_AP_3");
-
-  Serial.println("Connecting Wifi ");
-  for (int loops = 10; loops > 0; loops--) {
-    if (wifiMulti.run() == WL_CONNECTED) {
-      Serial.println("");
-      Serial.print("WiFi connected ");
-      Serial.print("IP address: ");
-      Serial.println(WiFi.localIP());
-      break;
-    }
-    else {
-      Serial.println(loops);
-      delay(1000);
-    }
-  }
-  if (wifiMulti.run() != WL_CONNECTED) {
-    Serial.println("WiFi connect failed");
-    delay(1000);
-    ESP.restart();
-  }
-
-  //start UART and the server
-  //  Serial2.begin(9600);
-  server.begin();
-  server.setNoDelay(true);
-
-  Serial.print("Ready! Use 'telnet ");
-  Serial.print(WiFi.localIP());
-  Serial.println(" 23' to connect");
-}
-
-void loop() {
-  uint8_t i;
-  if (wifiMulti.run() == WL_CONNECTED) {
-    //check if there are any new clients
-    if (server.hasClient()) {
-      for (i = 0; i < MAX_SRV_CLIENTS; i++) {
-        //find free/disconnected spot
-        if (!serverClients[i] || !serverClients[i].connected()) {
-          if (serverClients[i]) serverClients[i].stop();
-          serverClients[i] = server.available();
-          if (!serverClients[i]) Serial.println("available broken");
-          Serial.print("New client: ");
-          Serial.print(i); Serial.print(' ');
-          Serial.println(serverClients[i].remoteIP());
-          break;
-        }
-      }
-      if (i >= MAX_SRV_CLIENTS) {
-        //no free/disconnected spot so reject
-        server.available().stop();
-      }
-    }
-    //check clients for data
-    for (i = 0; i < MAX_SRV_CLIENTS; i++) {
-      if (serverClients[i] && serverClients[i].connected()) {
-        if (serverClients[i].available()) {
-          //get data from the telnet client and push it to the UART
-          while (serverClients[i].available()) Serial.write(serverClients[i].read());
-        }
-      }
-      else {
-        if (serverClients[i]) {
-          serverClients[i].stop();
-        }
-      }
-    }
-    //check ==UART== => Serial for data
-    if (Serial.available()) {
-      size_t len = Serial.available();
-      uint8_t sbuf[len];
-      Serial.readBytes(sbuf, len);
-      //push UART data to all connected telnet clients
-      for (i = 0; i < MAX_SRV_CLIENTS; i++) {
-        if (serverClients[i] && serverClients[i].connected()) {
-          serverClients[i].write(sbuf, len);
-          delay(1);
-        }
-      }
-    }
-  }
-  else {
-    Serial.println("WiFi not connected!");
-    for (i = 0; i < MAX_SRV_CLIENTS; i++) {
-      if (serverClients[i]) serverClients[i].stop();
-    }
-    delay(1000);
-  }
-}
\ No newline at end of file
+// オリジナルのWifiTelnetToSerial を、改変しました。
+/*
+WiFiTelnetToSerial - Example Transparent UART to Telnet Server for ESP32
+
+Copyright (c) 2017 Hristo Gochkov. All rights reserved.
+This file is part of the ESP32 WiFi library for Arduino environment.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#include <WiFi.h>
+#include <WiFiMulti.h>
+
+WiFiMulti wifiMulti;
+
+//how many clients should be able to telnet to this ESP32
+#define MAX_SRV_CLIENTS 3
+const char* ssid = "miura2g";
+const char* password = "jikken2022";
+
+WiFiServer server(23);
+WiFiClient serverClients[MAX_SRV_CLIENTS];
+
+void setup() {
+  Serial.begin(115200);
+  Serial.println("\nConnecting");
+  
+  wifiMulti.addAP(ssid, password);
+  //  wifiMulti.addAP("ssid_from_AP_2", "your_password_for_AP_2");
+  //  wifiMulti.addAP("ssid_from_AP_3", "your_password_for_AP_3");
+  
+  Serial.println("Connecting Wifi ");
+  for (int loops = 10; loops > 0; loops--) {
+    if (wifiMulti.run() == WL_CONNECTED) {
+      Serial.println("");
+      Serial.print("WiFi connected ");
+      Serial.print("IP address: ");
+      Serial.println(WiFi.localIP());
+      break;
+    }
+    else {
+      Serial.println(loops);
+      delay(1000);
+    }
+  }
+  if (wifiMulti.run() != WL_CONNECTED) {
+    Serial.println("WiFi connect failed");
+    delay(1000);
+    ESP.restart();
+  }
+  
+  //start UART and the server
+  //  Serial2.begin(9600);
+  server.begin();
+  server.setNoDelay(true);
+  
+  Serial.print("Ready! Use 'telnet ");
+  Serial.print(WiFi.localIP());
+  Serial.println(" 23' to connect");
+}
+
+void loop() {
+  uint8_t i;
+  if (wifiMulti.run() == WL_CONNECTED) {
+    //check if there are any new clients
+    if (server.hasClient()) {
+      for (i = 0; i < MAX_SRV_CLIENTS; i++) {
+        //find free/disconnected spot
+        if (!serverClients[i] || !serverClients[i].connected()) {
+          if (serverClients[i]) serverClients[i].stop();
+          serverClients[i] = server.available();
+          if (!serverClients[i]) Serial.println("available broken");
+          Serial.print("New client: ");
+          Serial.print(i); Serial.print(' ');
+          Serial.println(serverClients[i].remoteIP());
+          break;
+        }
+      }
+      if (i >= MAX_SRV_CLIENTS) {
+        //no free/disconnected spot so reject
+        server.available().stop();
+      }
+    }
+    //check clients for data
+    for (i = 0; i < MAX_SRV_CLIENTS; i++) {
+      if (serverClients[i] && serverClients[i].connected()) {
+        if (serverClients[i].available()) {
+          //get data from the telnet client and push it to the UART
+          while (serverClients[i].available()) Serial.write(serverClients[i].read());
+        }
+      }
+      else {
+        if (serverClients[i]) {
+          serverClients[i].stop();
+        }
+      }
+    }
+    //check ==UART== => Serial for data
+    if (Serial.available()) {
+      size_t len = Serial.available();
+      uint8_t sbuf[len];
+      Serial.readBytes(sbuf, len);
+      //push UART data to all connected telnet clients
+      for (i = 0; i < MAX_SRV_CLIENTS; i++) {
+        if (serverClients[i] && serverClients[i].connected()) {
+          serverClients[i].write(sbuf, len);
+          delay(1);
+        }
+      }
+    }
+  }
+  else {
+    Serial.println("WiFi not connected!");
+    for (i = 0; i < MAX_SRV_CLIENTS; i++) {
+      if (serverClients[i]) serverClients[i].stop();
+    }
+    delay(1000);
+  }
+}
+
diff --git a/SampleSrc/wifi01.ino b/SampleSrc/wifi01.ino
index 3c6ff6f..efd2ef8 100644
--- a/SampleSrc/wifi01.ino
+++ b/SampleSrc/wifi01.ino
@@ -1,32 +1,33 @@
-#include <M5StickCPlus.h>
-#include <WiFi.h>
-
-const char* ssid = "miura2g";
-const char* password = "jikken2022";
-
-void setup() {
-  M5.begin();
-  M5.Lcd.setRotation(3);
-  M5.Lcd.fillScreen(ORANGE);
-  M5.Lcd.setCursor(10, 50, 4);
-
-  WiFi.begin(ssid, password); // 接続開始
-  while (WiFi.status() != WL_CONNECTED) { // 接続中...
-    M5.Beep.tone(2000);  delay(200);
-    M5.Beep.mute();  delay(300);
-    M5.Lcd.print(".");
-  }
-  // 接続完了！！
-  M5.Beep.tone(4000); 
-  M5.Lcd.fillScreen(GREEN);
-  M5.Lcd.setCursor(0, 40, 4);
-  M5.Lcd.setTextColor(BLACK, GREEN);
-  M5.Lcd.print("  Wifi Connected!\n  ");
-  String gotip = WiFi.localIP().toString(); // m5デバイスのIPアドレス
-  M5.Lcd.println(gotip);
-  delay(1500);
-  M5.Beep.mute();
-}
-
-void loop() {
-}
\ No newline at end of file
+#include <M5StickCPlus.h>
+#include <WiFi.h>
+
+const char* ssid = "miura2g";
+const char* password = "jikken2022";
+
+void setup() {
+  M5.begin();
+  M5.Lcd.setRotation(3);
+  M5.Lcd.fillScreen(ORANGE);
+  M5.Lcd.setCursor(10, 50, 4);
+
+  WiFi.begin(ssid, password); // 接続開始
+  while (WiFi.status() != WL_CONNECTED) { // 接続中...
+    M5.Beep.tone(2000);  delay(200);
+    M5.Beep.mute();  delay(300);
+    M5.Lcd.print(".");
+  }
+  // 接続完了！！
+  M5.Beep.tone(4000); 
+  M5.Lcd.fillScreen(GREEN);
+  M5.Lcd.setCursor(0, 40, 4);
+  M5.Lcd.setTextColor(BLACK, GREEN);
+  M5.Lcd.print("  Wifi Connected!\n  ");
+  String gotip = WiFi.localIP().toString(); // m5デバイスのIPアドレス
+  M5.Lcd.println(gotip);
+  delay(1500);
+  M5.Beep.mute();
+}
+
+void loop() {
+}
+
diff --git a/SampleSrc/wifimac.ino b/SampleSrc/wifimac.ino
index 3a668f3..e32b0cd 100644
--- a/SampleSrc/wifimac.ino
+++ b/SampleSrc/wifimac.ino
@@ -6,41 +6,42 @@
 
 void setup()
 {
-    M5.begin();
-    M5.Lcd.setRotation(3);
-    M5.Lcd.fillScreen(ORANGE);
-    M5.Lcd.setCursor(10, 50, 4);
-
-    WiFi.begin(ssid, password); // 接続開始
-    while (WiFi.status() != WL_CONNECTED)
-    { // 接続中...
-        M5.Beep.tone(2000);
-        delay(200);
-        M5.Beep.mute();
-        delay(300);
-        M5.Lcd.print(".");
-    }
-    // 接続完了！！
-    M5.Beep.tone(4000);
-    M5.Lcd.fillScreen(GREEN);
-    M5.Lcd.setCursor(0, 30, 4);
-    M5.Lcd.setTextColor(BLACK, GREEN);
-    M5.Lcd.print("  Wifi Connected!\n  ");
-    String gotip = WiFi.localIP().toString(); // m5デバイスのIPアドレス
-    M5.Lcd.println(gotip);
-
-    // MACアドレスを表示
-    uint8_t mac[6];
-    char macchar[100];
-    esp_read_mac(mac, ESP_MAC_WIFI_STA);
-    sprintf(macchar, "  %02X:%02X:%02X:%02X:%02X:%02X", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
-    String macstr = macchar;
-    M5.Lcd.println(macstr);
-
-    delay(1500);
+  M5.begin(115200);
+  M5.Lcd.setRotation(3);
+  M5.Lcd.fillScreen(ORANGE);
+  M5.Lcd.setCursor(10, 50, 4);
+  
+  WiFi.begin(ssid, password); // 接続開始
+  while (WiFi.status() != WL_CONNECTED)
+  { // 接続中...
+    M5.Beep.tone(2000);
+    delay(200);
     M5.Beep.mute();
+    delay(300);
+    M5.Lcd.print(".");
+  }
+  // 接続完了！！
+  M5.Beep.tone(4000);
+  M5.Lcd.fillScreen(GREEN);
+  M5.Lcd.setCursor(0, 30, 4);
+  M5.Lcd.setTextColor(BLACK, GREEN);
+  M5.Lcd.print("  Wifi Connected!\n  ");
+  String gotip = WiFi.localIP().toString(); // m5デバイスのIPアドレス
+  M5.Lcd.println(gotip);
+  
+  // MACアドレスを表示
+  uint8_t mac[6];
+  char macchar[100];
+  esp_read_mac(mac, ESP_MAC_WIFI_STA);
+  sprintf(macchar, "  %02X:%02X:%02X:%02X:%02X:%02X", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+  String macstr = macchar;
+  M5.Lcd.println(macstr);
+  
+  delay(1500);
+  M5.Beep.mute();
 }
 
 void loop()
 {
-}
\ No newline at end of file
+}
+