3pcs DIY 51 Single Chip Traffic Light Kit Electronic Production DIY LED Flash Kit

Description: The emergence of traffic lights enables traffic to be effectively controlled, which has obvious effects on diverting traffic flow, improving road traffic capacity and reducing traffic accidents. How to adopt appropriate control methods, make full use of the city highways that cost huge amounts of money, ease the traffic congestion of the main roads and ramps, and the surrounding areas of the city, and become more and more urgently needed to be solved by the transportation management and urban planning departments. problem. With the development of electronic technology, the use of computer technology for intelligent management of traffic lights has become a widely used method. Design a traffic light control circuit at the intersection, requiring the vehicles on the intersection of the main lane and the main road to alternately run. Each transit time is set to 25S for the main road and 20S for the second road; The yellow light is required to light up 5S in order to change the running lane; When the yellow light is on, it is required to flash once every second; The countdown seconds display; Voice prompts; When there is a special situation that needs to pass, the traffic lights can be considered as control Size: 60 x 70mm PCB Material: double-sided 1.6mm FR-4 sheet Supply Voltage: 5V LED Quantity: 16pcs 4 mmLED LED Color: Red / Yellow / Green Package Included: 3 x DIY 51 Single Chip Traffic Light Kit