Open Interface III

Arduino firmware modified for Open Interface III hardware - based on K3NG Arduino CW Keyer, which in addition includes:

• Switch MODE - preset board for each mode separately
• MENU - show many actual value and firmware preset
• Band decoder - sniffing CAT or generate own request for read frequency, with BCD (IP in future) output
• FSK keying - RTTY keying from memory button or serial line
• FSK decode - RTTY decode signal generate from PC (EXTFSK)

More in wiki

Binary upload with avrdude

$ avrdude -v -v -p atmega2560 -c wiring -P /dev/ttyUSB0 -b115200 -V -D -U flash:w:/k3ng_keyer.ino.mega.hex:i