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February 6, 2015 AT 11:00 am

Weather Checking Traffic Light Project #piday #raspberrypi @Raspberry_Pi

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Weather checking traffic light project. via imgur

I took an old traffic light from an salvage store ($15) and got it working again. I cleaned it up, added a Raspberry Pi and a 4-channel relay, and now it flashes, checks the weather, and lets my kids know how to dress for the day.

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