H0-scale (1:87) real working traffic lights for model railroad

thingiverse

print the front and backplate for the traffic light. drill a small hole in the backplate, so you can pass 3 thin wires trough it. put a red/yellow/green 3mm LED in the frontplate, and solder it to the cathodes of the LEDs. use a small brass tube as a pole for the lights, and bend accordingly. drill a small hole in the tube, where you will glue the backplate to the tube. connect all 3 anodes of the leds toghether, and solder it with a small wire to the brass tube. run the 3 wires trough the pole (pole will act as positive for the 4th wire) mill or etch the PCB. (you find the EagleCAD schematic and BRD files for the traffic light controller inside the zip, just as the HEX file to put in the Microchip PIC IC, PicBasic sources are also included, just in case your country use a different "light-scenario" for traffic lights) Included light-scenario is for Belgian traffic lights ... P.S. System works on 5V. The socket on the 2th picture does have a 5V powersupply built-in :-)