Is there a way to access or control raspberry pi GPIO pins using flutter app running on android things?

Question

I am trying to build a project based on IoT with flutter, android things, and raspberry pi. For that, I need to access raspberry pi GPIO pins through my flutter app.

Firstly I have installed android things os onto the raspberry pi and connect a display to it. After that, I have to build a flutter app and uploaded and it's working perfectly but now I need to control GPIO so I have googled it but found nothing except the rpi_gpio dart library which can access raspberry pi GPIO pins but apparently it is not working on flutter dependencies.

So is there a way then suggest me so that I can complete my project.

Solution 1

I've recently seen a Dart library for the Raspi's GPIOs. As Dart is the underlying language of Flutter, shouldn't you be able to then use the pins by importing this library?

https://pub.dev/packages/rpi_gpio

Solution 2

I know that this posting is a bit old, but another option might be to use the pigpio library. It has a feature that pushes the entire API out to a network connection (this feature is called "pigs").

I struggled trying to use FFI to interface with the C-based pigpio library on a Pi Zero W. Then I was reminded that Dart support for the older, less powerful devices had been dropped from Dart, so I was stuck with no graceful solution until I tried out pigs. The pigs interface completely removed the headaches associated with either FFI on Dart or JNI in Java and just made it a happy Socket interface over the network. I was doing an I2C interface to a temperature/humidity sensor. Pigs should also make a browser-based Flutter app happy as long as you deal properly with the single origin requirements.

Here's a link to pigs on pigpio