This project provides a touch interface for sending morse code via amateur radio. The code is plug-and-play with the ATtiny85 microcontroller. The contacts can be any conductive surface.
- Use hardware timer interrupts instead of
_delay_()functions, to permit multitasking or power save features - Rework connections to allow bit-shifting to replace
ifstatements - Lay out a PCB with SMD components for a smaller size
- Swap out output transistors with an optoisolator
- Power the microcontroller from the radio
- Add in-software electronic keying for traditional keyed radios
- Add self-trained capacitive senstivity to account for humidity/installation conditions