DIY TRAFFIC LIGHT MODEL

traffic light / traffic signal / how to make a traffic light model .

download &  print the cutting sheet :
https://drive.google.com/file/d/1S8R7...

wires map guide (Circuit diagram) :
https://drive.google.com/file/d/1rpmY...

Adjustable DC Power Supply:  
https://www.banggood.com/New-LM317-Ad...

LEDs:
https://www.banggood.com/180pcs-Eight...

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