diff --git a/src/TestBuild/TestBuild.ino b/src/TestBuild/TestBuild.ino
new file mode 100644
index 0000000..dde2180
--- /dev/null
+++ b/src/TestBuild/TestBuild.ino
@@ -0,0 +1,32 @@
+#include <M5StickCPlus.h>
+#include <WiFi.h>
+
+const char* ssid = "**********";
+const char* password = "**********";
+
+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
diff --git a/src/TestBuild/arduino-cli.yaml b/src/TestBuild/arduino-cli.yaml
new file mode 100644
index 0000000..7b63f79
--- /dev/null
+++ b/src/TestBuild/arduino-cli.yaml
@@ -0,0 +1,4 @@
+board_manager:
+  additional_urls:
+    - https://dl.espressif.com/dl/package_esp32_index.json
+
diff --git a/src/TestBuild/build/esp32.esp32.m5stick-c/TestBuild.ino.bin b/src/TestBuild/build/esp32.esp32.m5stick-c/TestBuild.ino.bin
new file mode 100644
index 0000000..b001929
--- /dev/null
+++ b/src/TestBuild/build/esp32.esp32.m5stick-c/TestBuild.ino.bin
Binary files differ
diff --git a/src/TestBuild/build/esp32.esp32.m5stick-c/TestBuild.ino.elf b/src/TestBuild/build/esp32.esp32.m5stick-c/TestBuild.ino.elf
new file mode 100755
index 0000000..a60580d
--- /dev/null
+++ b/src/TestBuild/build/esp32.esp32.m5stick-c/TestBuild.ino.elf
Binary files differ
diff --git a/src/TestBuild/build/esp32.esp32.m5stick-c/TestBuild.ino.partitions.bin b/src/TestBuild/build/esp32.esp32.m5stick-c/TestBuild.ino.partitions.bin
new file mode 100644
index 0000000..0e52b4c
--- /dev/null
+++ b/src/TestBuild/build/esp32.esp32.m5stick-c/TestBuild.ino.partitions.bin
Binary files differ
diff --git a/src/TestBuild/compile.sh b/src/TestBuild/compile.sh
new file mode 100755
index 0000000..ec6a064
--- /dev/null
+++ b/src/TestBuild/compile.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+
+# arduino-cli compile --fqbn esp32:esp32:m5stick-c --export-binaries M5StickCPlus_FactoryTest2022.ino 
+
+# get folder name, and set to [dir] variable. 
+dir=${PWD##*/}
+arduino-cli compile --fqbn esp32:esp32:m5stick-c --export-binaries ${dir}.ino
diff --git a/src/TestBuild/setup.sh b/src/TestBuild/setup.sh
new file mode 100755
index 0000000..e0d7e99
--- /dev/null
+++ b/src/TestBuild/setup.sh
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+# commented commands were not necessary for 1st setup, but necessary for future updates/upgrades
+#arduino-cli update
+#arduino-cli upgrade
+
+# arduino-cli core update-index --additional-urls https://dl.espressif.com/dl/package_esp32_index.json
+arduino-cli core update-index --config-file arduino-cli.yaml
+
+# install core (board / platform)
+arduino-cli core install esp32:esp32
+
+# show the list of installed platforms
+arduino-cli core list
+
+# install library 
+arduino-cli lib install M5StickCPlus
+
+# Optional for IRsend samples
+arduino-cli lib install IRremoteESP8266
+arduino-cli lib install WiFi HttpClient
+arduino-cli lib install Regexp Dictionary
+arduino-cli lib install ArduinoJson
+#arduino-cli lib install WiFiMulti_Generic
+
+
+## You can find other libraries as follows.
+# arduino-cli lib search [keyword]
+## if you get too much candidates, use grep to filter 
+# arduino-cli lib search [keyword] | grep -e "^Name"
+
+
+# Finally, just show board list
+arduino-cli board list
diff --git a/src/TestBuild/testbuild_fromParent.sh b/src/TestBuild/testbuild_fromParent.sh
new file mode 100755
index 0000000..fbf45b0
--- /dev/null
+++ b/src/TestBuild/testbuild_fromParent.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# update src list
+cd ..
+ls *.ino > srclist.tmp
+
+cd TestBuild
+
+for f in `cat ../srclist.tmp` ; do
+  echo ${f}
+  cp ../${f} TestBuild.ino
+  ./compile.sh
+done
+
+# delete srclist tmpfile
+cd ..
+rm srclist.tmp
+cd TestBuild
diff --git a/src/TestBuild/upload.sh b/src/TestBuild/upload.sh
new file mode 100755
index 0000000..0c86404
--- /dev/null
+++ b/src/TestBuild/upload.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+# get serial port via board list, choose lines including "USB", and pick up 1st word
+serial=`arduino-cli board list | grep USB | awk '{print $1}'`
+
+echo ${serial}
+
+# upload sketch in this folder
+arduino-cli upload --fqbn esp32:esp32:m5stick-c -p ${serial} "."