This project is for smart LDR Light Sensor Circuit with Arduino, it can feel light like human eye. When dark come, it turn ON lamp by itself and when light come, it turn OFF lamp automatic; so no need to press any switch. Also, it save time and save power and it is small, simple […]
LDR Circuits
LDR Based Aircraft Warning Signal Light Circuit
Tall buildings, towers and other high structures require warning lights to ensure aircraft safety and a red 230V LED bulb typically serves as the warning lamp. This LDR Based Aircraft Warning Signal Light Circuit automatically switches ON the bulb in night and switch OFF in day, also it uses LDR sensor, relay and small power […]
Automatic Light Control Switch Circuit using IC 555
To begin with, this article is for Automatic Light Control Switch Circuit using IC 555, it works with light dependent resistor (LDR). When light falls on the LDR, its resistance changes, the 555 IC converts this resistance change into a switching signal and drives the relay; the relay can then control a lamp, fan, motor, […]
12V Mini Emergency Light Circuit with LDR
12V Mini Emergency Light Circuit with LDR is simple project to make; here, light gets ON automatically when dark and it works with bright white LED and uses 12V battery. Also, the circuit is good for home, garage and emergency. Circuit Working: Parts List: Components Values Quantity Resistors 10k 1/4 watt 1 2.2k 1/4 watt […]
Light Controlled Switch Circuit using IC LM311 and LDR
This article talks about Light Controlled Switch Circuit using IC LM311 and LDR, as it simple and very useful and it feel light change near it. We find this circuit in many place like automatic light, street lamp and security system and main thing is about voltage comparator with LM311 IC. Then LDR sees light […]
Automatic Night Lamp Circuit with Photocell
Automatic night lamp use photocell to check light or dark; when dark the lamp is ON and when light the lamp goes OFF. This type of circuit is good for street, garden and security lights and also the parts used in circuits are LDR (ORP12), op-amp (uA741), relay which controls the AC lamp. Also, low […]