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‘SandClock’ Writes Time in Sand, in a Frame of Seashells #plotclock #drawbot #timebot

Thanks to erichs for sending this in; there’s very thorough documentation of the build here on his blog.

sandclock


 
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Featured Adafruit Products!

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Adafruit 16-Channel 12-bit PWM/Servo Driver – I2C interface – PCA9685: You want to make a cool robot, maybe a hexapod walker, or maybe just a piece of art with a lot of moving parts. Or maybe you want to drive a lot of LEDs with precise PWM output. Then you realize that your microcontroller has a limited number of PWM outputs! What now? You could give up OR you could just get this handy PWM and Servo driver breakout. Read more.

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