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Read Article βLDR(Light Dependent Resistor) also known as a photoresistor is a resistor whose resistance varies with the amount of light falling on it. This sensor can be used for making a light sensor, color sensor, object sensor, line sensor, etc.
pH Sensor with Analog Output for Arduino and Raspberry Pi βΉ1,899.00
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Voice Recognition Module V3.1 compatible with Arduino βΉ2,799.00 This light sensor is bigger than a normal LDR. A photocell changes resistance depending on the amount of light it is exposed to. These little sensors make great ambient light triggers (when the light in the room turns on, do something, or vice-versa). This is a large-size LDR with a size of 20mm.
To use, connect one side of the photo cell (either one, it's symmetric) to power (for example 5V) and the other side to your microcontroller's analog input pin. Then connect a 10K pull-down resistor from that analog pin to the ground. The voltage on the pin will be 2.5V or higher when it light out and near ground when it's dark.
Specifications:
Package Includes: 1 X 20mm Photocell Photoresistor LDR Light Sensor
| LDR SIZE (mm) | 20 |
|---|
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Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in
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