UART access on raspberry pi4 running on Lineage os

[ALLWYN_GNANADAS_A]

Hi, I am running android Lineage os on Raspberry pi 4. I am asked to develop an android app to access the UART of raspberry pi and display the status in the Android app. How to start. I am a beginner who has little experience with MIT app inventor. Pls guide Me

[SteveJG]

Welcome Allwyn.

Perhaps start here>

Connect Smartphone with Raspberry Pi 3 over bluetooth

Hello There! I am an absolut beginner in Raspberry Pi and Mit App Inventor. I have an project to do, to connect a phone with a Rasberry Pi 3 over bluetooth but I dont know how to do it. I already searched up solutions and I tried them but as a result I dont see any progress. When I try to connect the phone to the rasberry over MIT App inventor, it is saying, that the device is not powered on. But I can connect the phone to the raspberry over the normal bluetooth settings. If you need more infor…

[ALLWYN_GNANADAS_A]

Thank you SteveJG.
I will try and let you know