diff --git a/D4han.ino b/D4han.ino
index c2b9ed7..c9f147b 100644
--- a/D4han.ino
+++ b/D4han.ino
@@ -1,21 +1,13 @@
-/*
-*******************************************************************************
-* Copyright (c) 2023 by M5Stack
-*                  Equipped with M5Core sample source code
-*                          配套  M5Core 示例源代码
-* Visit for more information: https://docs.m5stack.com/en/unit/tvoc
-* 获取更多资料请访问: https://docs.m5stack.com/zh_CN/unit/tvoc
-*
-* Describe: TVOC/eCO2.
-* Date: 2021/8/26
-*******************************************************************************
-Description: The screen will display TVOC and CO2.  屏幕将显示TVOC和CO2。
-Note: SGP30 needs 15 seconds to initialize calibration after power on.
-*/
-
 #include <M5StickCPlus.h>
 
 #include "Adafruit_SGP30.h"
+#include <WiFi.h>
+#include <WiFiMulti.h>
+#include <WiFiClient.h>
+#include <HTTPClient.h>
+
+WiFiMulti WiFiMulti;
+
 
 Adafruit_SGP30 sgp;
 TFT_eSprite spu = TFT_eSprite(&M5.Lcd); // Sprite object
@@ -42,7 +34,18 @@
     delay(5000);
   }
   //  M5.Lcd.println("Initialization...");
+  Serial.begin(115200);
+  WiFi.mode(WIFI_STA);
+  WiFiMulti.addAP("ics-ap", "jikkenics");
   
+  // wait for WiFi connection
+  Serial.print("Waiting for WiFi to connect...");
+  while ((WiFiMulti.run() != WL_CONNECTED)) {
+    Serial.print(".");
+    delay(50);
+  }
+  Serial.println(" connected");
+
 }
 
 void loop() {
@@ -152,6 +155,7 @@
     // eCO2が1000を超えたら音を鳴らす
 if (sgp.eCO2 > 1000) {
 M5.Beep.setBeep(523, 500);  M5.Beep.beep();  
+ sendLineNotify();
 }
 
   M5.update();
@@ -162,9 +166,31 @@
   delay(1000);
 }
 
+int sendLineNotify() {
+ HTTPClient http;
 
+  if (http.begin("https://notify-api.line.me/api/notify")) {  
+    http.addHeader("Authorization", "Bearer ssJzyHVJE5pELzp0BdX5aieaovE33Md0gcmugu1A6qv"); 
+    http.addHeader("Content-Type", "application/x-www-form-urlencoded"); // format of postdata
+    String postdata = "message=換気をしてください";
+    int httpCode = http.POST(postdata);
 
+    // httpCode will be negative on error
+    if (httpCode > 0) {
+      // HTTP header has been send and Server response header has been handled
+      Serial.printf("[HTTP] GET... code: %d\n", httpCode);
 
-
-void loop() {
+      // file found at server
+      if (httpCode == HTTP_CODE_OK || httpCode == HTTP_CODE_MOVED_PERMANENTLY) {
+        String payload = http.getString();
+        Serial.println(payload);
+      }
+    } else {
+      Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
+    }
+    http.end();
+  } else {
+    Serial.printf("[HTTP] Unable to connect\n");
+  }
+  return 0;
 }