SAT mode emulation for 2x FT817 and Arduino NANO
Uses modified FT817 CAT library
2 SW serials are set to 9600, HW serial is free for easy debug
Short press off button enable / disable tracking
Long press invert mode
Master radio - 2 RX, 3 TX
Slave radio - 4 RX, 5 TX
Button is connected to PIN 6
Piezo speaker is connected to PIN 9
KIT is available here: https://www.hamshop.cz/radio-accessories-c25/ft817-ft818-dual-tune-i393/
Building instructions: https://github.com/ok1cdj/FT817-satmode/wiki
