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4tronix RPI-STOP Educational Traffic Light for Raspberry Pi

4tronix-RPI-Stop-Educational-Traffic-Light-for-Raspberry-Pi-4tronix-RPI-STOP-p-The-b-Pi-Stop-b-is-an-educational-traffic-light-project-for-b-Raspberry-Pi-b-The-low-cost-hardware-module-is-designed-to-allow-you-to-use-your-Raspberry-Pi-to-take-the-first-steps-into-interfacing-with-the-real-world-You-ll-be-on-the-first-rung-of-the-Internet-of-Things-ladder-as-soon-as-the-lights-change-to-green-The-brilliant-thing-about-the-Pi-Stop-is-the-familiarity-of-the-elements-everyone-knows-wha

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