[Resource Download] The download address is as follows:
https://docs.qq.com/doc/DTlRSd01BZXNpRUxl
51 solar street light automatic control system-tp4056-LM393-photosensitive-high brightness-thermal release
This design is composed of STC89C52 single-chip circuit + lithium battery protection circuit + comparator circuit + photoresistor detection circuit + highlight LED light circuit + pyro-infrared module circuit.
1. Charge the lithium battery through the solar panel.
2. The system has a lithium battery protection circuit.
3. The lithium battery power is detected through the comparator module circuit. When the lithium battery power is higher than the set threshold, the highlight LED will not light during the day and the highlight LED will light at night.
4. When the lithium battery power is lower than the set threshold, the light will not be on during the day, and at night, if the pyro-infrared sensor detects no one, the brightness of the LED will be automatically reduced, and when the pyro-infrared module detects a person, it will highlight The LED light returns to normal brightness.
