This project for Automatic Street Light Circuit using Arduino how street light can think smart. Light will turn ON when night come. Light will turn OFF when sun come. No need of a human to press switch. Arduino and LDR do all work automatic. It save power and make street more smart. Simple idea but […]
LDR Circuits
Smart Street Light Control Circuit
Light ON at night and light OFF in day all automatic! All this is done with one LDR and a BC547 transistor. This Smart Street Light Control Circuit is a easy and simple way to save energy. There is no manual effort and no energy waste. Circuit Working: Parts List: Component Name Specification Quantity Resistors […]
LDR Based Dark Sensor Circuit
This small LDR Based Dark Sensor Circuit is very smart. It can see light and dark using LDR. When there is light, everything stay quiet. When it becomes dark then LED start to glow and buzzer makes sound. No need to touch anything it works by itself. It is easy to make with low cost […]
Automatic Light Control Circuit using LDR and LM3909 IC
This Automatic Light Control Circuit using LDR and LM3909 IC is small and smart light sensor circuit. It can feel light and dark like magic. It uses one LDR and one LM3909 IC. When dark come, LED turns ON. When light come, LED goes OFF. It is perfect for night lamps or auto lights. Circuit […]
LDR Light Sensor Circuit using BC547
This LDR Light Sensor Circuit using BC547 works by itself. When it is dark the LED turns ON. When light comes then LED turns OFF. LDR feels the light and controls the LED. No need to press any switch. Circuit is simple and is with very low cost. It is good for small night lamp […]
Solar Tracker Circuit using LDR and Op-Amp
Solar panels gives more power when they face the sun directly. Manual turning is hard and wastes time. Automatic solar tracker moves panel automatically with sun. This Solar Tracker Circuit using LDR and Op-Amp uses simple parts and with no Arduino or microcontroller. Main parts are two LDR sensors, TDA2822 IC, few resistors, solar panel […]