Traffic light for Brio / IKEA / alike train-tracks
thingiverse
I built a traffic light for my kid. To assemble it, I used: 1x Arduino Nano Clone 3x 5mm LEDs 3x 200-ohm resistors 1x 1k-ohm resistor 1x miniservo (e.g. https://www.aliexpress.com/item/32948823768.html) 1x 6x6mm push button (e.g. https://www.aliexpress.com/item/32857436208.htm) 1x M2 8mm screw 1x M3 bolt and nut Wires & a power source to energize the Arduino. I created this, and it functions flawlessly, but it still needs some refinement: https://www.thingiverse.com/thing:4228350 If you'd like to build this but need assistance with the code or wiring - just let me know.
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