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=== synopsis === Create small wireless traffic lights === ingredients === * OSB for the back * old perforated print * piece of thin PVC tube * plastic egg "carton" cut in half as lens * half plastic mayonase jar for the back === result === <gallery> trafficslight_parts.jpg|parts trafficslight_built.jpg|built version </gallery> {{Html5media|first_run.mp4|First run}} === todo === * upload pics * better firmware
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