This project details the build of a stand alone MIDI interface for the SFX Sound Expander cartridge originally for the Commodore 64 range of computers. I like this cartridge, I like the cheesy sounds, ...
With this sketch you can control pins of a remote Arduino board through ESPHome. The Arduino acts as a port expander, allowing you to use more pins than a standard ESP8266/ESP32 has. The Arduino is ...
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