This is one of the PCB projects from the Kicad Like a Pro course. It contains a two and four layer board that implements a MCU datalogger with build-in 512K EEPROM and clock.
A eurorack-friendly audio frontend compatible with many FPGA boards, based on the AK4619VN audio CODEC.
apfaudio
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Xihe is a self-sustaining, ultra-low-power sensing platform designed for long-lifetime deployments with zero maintenance.