Folks, I've been reading posts, downloading code and struggling for the last 4-5 hours. I'm trying to implement pin change interrupts on the Moteino Mega. I have an Adafruit GPS using hardware Serial1 (pins 10 & 11) and of course an RFM69 radio using INT2. The ugly part comes in when I'm trying to use a limit switch to trigger a wakeup from SLEEP_FOREVER. I've tried multiple libraries, including EnableInterrupt and PinChangeInt. Either they fail to compile (I even tried the #define trick which allowed EnableInterrupt to compile but couldn't find the enable and disable function calls), or they don't work.
I'm also using a HTU21D Temp/Humidity and a Adafruit GA1A12S202 light sensor. Each of these work without issue.
So folks, what is the latest approach to getting pin change interrupts to work on a Moteino Mega? Hopefully, after a number of years, this process has become easier to understand.
I'll be happy to post my code if it's needed to further explain what I'm trying to do.
