Hello everyone, I am currently a middle schooler and I have a question regarding the use of BLE for the mobile app I created. I wanted to use the service uuid and service characteristic to help connect the phone app to my microbit program but it seems that there is a problem with the service which prevents my microbit from recieving the messages I am sending through the phone. It seems as if the message isn’t sent or is sent incorrectly, my prgrams are uploaded below, and I would really appreciate it if you could provide some feedback, suggestions or potential solutions. Thank you!
Pic1: The microbit side of recieving the the string
Pic2: App inventor side of the string writing
Pic3: The error code of the string being sent
