Thank you for the reply!
I would like to play around with the firmware a bit and see if I can get some other outlets working.
Do you happen to have a guide anywhere for building the RFToy or OpenSprinkler firmware from source? In particular getting the necessary dependencies set up? Running “make” in the firmware directory doesn’t trivially work.
I am a software engineer, and have done some PIC and Arduino stuff in the past, but not enough that it is immediately obvious to me what sort of environment I need to set up.