I’m looking to start a project (an internet-connected, openHAB enabled busy board for my kids!) and my plans involve significantly more IO pins than the photon has.
I have been looking at the PCF8574 as a means to connect a bunch of switches to the setup. I have found some Arduino tutorials for the IC but nothing specific to the Particle platform.
I have seen some discussion on the Particle forum so I believe it is compatible, but none of the examples I found included any code.
Does anyone know of either an Arduino-based PCF8574 tutorial that’s code compatible with Particle, or have a Particle-based PCF8574 project they’d be willing to share? I think I could get it off the ground if I could see some basic coding examples.