This repo is WIP. It will contain the USB bridge powered by an rp2040 that translates USB serial commands (and reads) into the HK OneWire flavor, analyzed in this repository.
The other part will be a python script running on the host computer that uses the Read/Write commands to automate digitizing audio data from tape or recording cool mixtapes to ... tape.
See also https://hackaday.io/project/195474-reversing-the-harmankardon-sound-system-protocol.
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| HOST PC | | RP2040 | EXT Power 19v AC --> | HK Tape Deck |
| | | | <-- HK Onewire Data --> | -----+
| Python lib | <-- USB Serial --> | Bridge | <-- HK Onewire Busy --> | | TAPE
| vvv | ---------- | ------
| Soundcard | <-- Audio in - - - - - - - - - - - - - - - - - - - - - | OUT |
| | --> Audio out - - - - - - - - - - - - - - - - - - - - > | REC |
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