Updated libraries: https://www.b4x.com/android/forum/threads/pi4j2-raspberry-pi-i-o-library.136113/#content This is a wrapper for Pi4J library. It allows you are control the Raspberry Pi board GPIO pins. Using this library is quite simple. You can use it from a UI app or non-UI app. First you...
jPi4J library supports the PiFace Digital extension. However it doesn't support the CAD module as the underlying library (Pi4J) doesn't support it. So we need to be a bit more creative here. We will run and interact with a simple Python script using UDP. Note that an external network is not...
At some point during 2019, the author of wiringpi, which is the native library that Pi4J was based on, stopped its development. Luckily, there is a new version of Pi4J which is now being actively developed and it works with all recent versions of Raspberry Pi. It is not backward compatible...
I don’t know anything about Raspberry Pi, but probably it can do this, the easy way, with the remote.
If you mean connecting the GPIO to the garage motor… you‘ll need someone more advanced, and probably to share some schemas
Hi all: *** ADDED Project with B4XPages working on B4A and B4J. See post #15 Not sure if this is the rigth place, or if I should publish it in Examples, @Erel, feel free to move. The code is not perfect, but it works. Most of code is copied/pasted/modified from forums, so this app is made by...