A eurorack-friendly audio frontend compatible with many FPGA boards, based on the AK4619VN audio CODEC.
apfaudio
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(WIP) Open-Source Circuit and code for custom built 120/240V 3-step (or n-step) light bulb dimmer working by turning off/on the light switch quickly to switch between brightness levels. Also provides memory-functionality to non-memory 3-step bulbs.