3-Pin 7mm LDR Light Sensor (Light Dependent Resistor)
Prices updated: 12 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Makers Electronics | LDR 3-Pin 7mm Light Sensor for Precision Light Detection | 4 EGP | View in store |
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Lowest price recorded: 4 EGP
About this product
A 7 mm light-dependent resistor with three pins for detecting ambient light levels. Its resistance changes with light intensity, which makes it suitable for light-sensing projects such as automatic night lights and brightness detection.
Specifications
- Type
- LDR (light-dependent resistor)
- Diameter
- 7 mm
- Pins
- 3
Frequently asked questions
What is the price of 3-Pin 7mm LDR Light Sensor (Light Dependent Resistor) in Egypt?
3-Pin 7mm LDR Light Sensor (Light Dependent Resistor) currently costs 4 EGP in Egypt.
Where can I buy 3-Pin 7mm LDR Light Sensor (Light Dependent Resistor) in Egypt?
3-Pin 7mm LDR Light Sensor (Light Dependent Resistor) is available from Makers Electronics. Compare the offers above to find the best price.
How do I read this sensor with an Arduino?
Build a voltage divider with a fixed resistor, for example 10 kΩ, and connect the midpoint to an analog pin. Then read the value with analogRead().
Which pins should I use, since it has three?
A standard LDR has two terminals, so confirm the pin function from the product markings or datasheet. With a multimeter, measure resistance between pairs while changing the light to find the light-sensitive pair.
