What is it?
LibAPRS is a library for the Arduino IDE, that makes it easy to write your own APRS applications for a MicroModem, or compatible build. It allows you to send and receive APRS packets, location updates and messages using simple functions in the Arduino IDE. All the AFSK modulation/demodulation, AX.25 handling, and such is running transparently in the “background” in interrupts, so you can focus on implementing exactly what you want!
How do I get started?
Just download the latest version of the library from the LibAPRS GitHub page, and place it in your Arduino libraries folder. Take a look at the included example for an explanation of the different functions.
Compiling an Arduino sketch with just the library and nothing else uses around 4000 bytes of flash and 831 bytes of RAM, so there should be plenty of space left to implement your application. The library uses TIMER1 for running the interrupts, so don’t change TIMER1 configuration!
Please remember that this library is very new, and I still consider it “beta quality”. It might do weird stuff, so be careful And please let me know if you find any bugs, so I can squash them!