I have the UNO R4 Wifi and trying to do a simple connection and write so I can see how communication works, to check how to write and read data.
I've used their Arduino example LED.
LED.ino (2.6 KB)
So after I've check it all works through the LightsBlue app.. I could write and read.
But when I create my own app through MIT App Inventor. I can connect to the arduino but I cannot make the light turn on.
I've download the BLE extensions from MIT extension link
edu.mit.appinventor.ble-20240822.aix
That's my project. Could anyone check what is wrong with it? I'm really curious what am I missing.
Bluetooth.aia (199.7 KB)