My set up:
Arduino Mega, HC-05 bluetooth module, Xiaomi A2 Lite
I am currently facing an issue connecting to the bluetooth module using the MIT app inventor.
Help is much appreciated.
- Don't send text if not connected
- Don't expect a response to arrive immediately after sending a request. Leave a note to yourself in a global variable telling you what to expect when the data arrives, and do your reads and interpretations only in the Clock Timer.