search

Pi4J / pi4j-v2

Pi4J Version 2.0
Apache License 2.0
266 stars 54 forks source link

Requesting Support for GPIO Pin Access on Konstakang AOSP for Raspberry Pi #289

Open BierDav opened 1 year ago

BierDav commented 1 year ago

I am currently developing an Android application that runs on the Konstakang AOSP for Raspberry Pi. One of the critical functionalities I need for my app is the ability to access the GPIO (General Purpose Input/Output) pins on the Raspberry Pi board directly from the Android app.

I am aware that accessing GPIO pins directly from an Android app might require root privileges and involve low-level hardware interactions. I'm a experienced full stack developer, but working with a raspberry pi is very new to me. So I don't have a clue how GPIO pins work behind the scenes, I seek guidance and insights from the community to understand if this use case is even feasible.

The problem I'm currently stuck with is that the .so files are not compatible with Android i guess: Cause: pi4j-library-pigpio-2.3.0 extracted from path C:\Users\David Bieregger\.gradle\caches\transforms-3\7a8e860f66fe14b2e2add8fde4eee6f6\transformed\pi4j-library-pigpio-2.3.0\aarch64\libpi4j-pigpio.so is not an ABI

jipspaul commented 4 months ago

Any news ? did you success doing it ?

taartspi commented 4 months ago

Yes, those .so are specific to the Pi ARM architecture. I am not familiar with Konstakang AOSP. The Pi4j would let you use java to access the GPIOs. In the pi4 the following site documents the code used to actually touch the hardware : https://abyz.me.uk/rpi/pigpio/python.html That web site documents support for C and python if they are usable in your development. As far as Pi5 that GPIO support is under development.

jipspaul commented 4 months ago

Thanks you a lot! I will try that