Connecting via Bluetooth to the XIAO Sense module

MIT App Inventor Help
7

Your characteristics on the board:

BLEService LEDService("19b10000-e8f2-537e-4f6c-d104768a124");  //Service UUID hexadecimal numbers
BLEIntCharacteristic redCharacteristic("19b10001-e8f2-537e-4f6c-d104768a124", BLERead | BLEWrite | BLENotify);
BLEIntCharacteristic greenCharacteristic("19b10002-e8f2-537e-4f6c-d104768a124", BLERead | BLEWrite | BLENotify);
BLEIntCharacteristic blueCharacteristic("19b10003-e8f2-537e-4f6c-d104768a124", BLERead | BLEWrite | BLENotify);

Your characteristics in the app:

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See the difference?