The solar tracker uses a combination of three photoresistors. R7, R8 and R9 to ensure that the circuit will always follow the sun during the day, but not for nighttime. When the sunlight is sufficient, the values ​​of the photoresistor batteries R7, R8 and R9 are 160 Ω and 4880 Ω on cloudy days, but this is not absolute.
Disposable Vape Pen,Disposable Vapor Pen,Disposable Vapes,Vape Disposable Pod
Shenzhen Xcool Vapor Technology Co.,Ltd , http://www.xcoolvapor.com