Various projects using APRS

• Pico90 - original code for testing HX-1 and APRS - was used for first prototype using solar panels, turns on 5v step-up before it powers up the radio and transmits.

• Pico91 - Upu's combination code of APRS as well as his standard pAva code

• Data - Various schematics etc.

• aprs_tnc - Bertos code for an Atmega328 TNC - needs to be compiled using avr-gcc