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pico-zxspectrum/docs/ZxSpectrumBreadboardHdmiKbd1PinAudio.md
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ZxSpectrumBreadboardHdmiKbd1PinAudio

This is a target similar to the HDMI prototype which can read from an original Spectrum keyboard matrix.

It is a work in progress.

It supports the following:

  • USB keyboard
  • Matrix keyboard (8x8)
  • USB joysticks
  • HDMI video
  • PWM sound (1 pin)
  • SPI SD card

Circuit Diagram

image

I don't know how the original keyboard pins were numbered but mine go from left to right with the keyboard oriented as you would type on it.

Firmware

ZxSpectrumBreadboardHdmiKbd1PinAudio.uf2