Lego compatible 1x3 traffic light
thingiverse
I'm currently immersed in automating Lego trains, utilizing Digispark Arduino compatible cards installed directly on the trains, controlled via radio waves. Failing to discover a suitable method to construct a traffic light using standard bricks that didn't result in excessive mass, I opted to 3D print my own solution instead. A custom 1x3 brick-compatible component has been designed, featuring ample space for concealing soldering and resistors. Four distinct covers have been created: two accommodate 3mm LEDs, while the other two are tailored for 5mm LEDs. Each size comes with both a vertical and horizontal cover option to provide versatility in application.
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