RC Transmitter

Bill of Materials

• ST7920
• Arduino Mega2560

Other Tools

• USB-ASP programmer

Software

Installing Bootloader

Fuses:

$ avrdude -p m2560 -c usbasp -P usb -U lock:w:0x3F:m -U flash:w:mega2560_stk500v2boot_opentx.hex -U lock:w:0x0F:m

File:Mega2560 stk500v2boot opentx.zip

Bootloader:

$ avrdude -p m2560 -c usbasp -P usb -U lock:w:0x3F:m -U flash:w:mega2560_stk500v2boot_opentx.hex -U lock:w:0x0F:m

Open Companion Settings -> Configure communications