- By Paulsin
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- Electronic Modules, Electronics, General Blog, Traffic Signal Light
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- 346 Views
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Circuit is done as shown in the diagram. Download trafficLight library from the following link. Unzip and paste the downloaded library to Arduino libraries folder. Restart Arduino IDE and open the example program from File -> Examples -> trafficLight -> trafficLight. Upload the program to your NodeMCU. Program compiled and tested on Arduino-1.8.12.