Check out the build instructions for the Raspberry Pi Pico-based Sand Clock Kit. Once assembled, writes the current time in a layer of sand! Whether you're new to electronics or a seasoned designer, ...
Replaces the stylus and the sand of the Sand Clock by a laser and a sheet of glow-in-the-dark sticker material. Replace the stylus and the sand of the Raspberry-Pi-Pico-based Sand Clock (from 2024) by ...
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