GRAND RAPIDS — In elementary school we all learn how to tell time on a clock….but have you ever learned how to tell time using the sun? Today we are going to learn how to make and use a sundial! So ...
Clock builds are a hacker staple, and many overflow with power-thirsty LEDs and network features. This build from [mattwach] takes quite the opposite approach, sipping away at its batteries thanks to ...
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