LDR Light Sensor Module 4-Pin with LM393 Comparator (DO/AO)
Prices updated: 13 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 ElectroHub | LDR Light Sensor Module 4-Pin (LM393 Comparator) | 40 EGP45 | View in store |
Price history
Lowest daily price, last 90 days
Not enough price history yet.
Lowest price recorded: 40 EGP
About this product
A photoresistor (LDR) breakout board that detects ambient light level. An LM393 comparator provides a digital output (DO) that switches at a threshold set by an onboard potentiometer, plus an analog output (AO) for reading brightness levels. Suited to automatic lighting and light detection in robotics projects.
Specifications
- Sensing Element
- LDR (Light-Dependent Resistor)
- Comparator IC
- LM393
- Output Type
- Digital (LM393) and Analog
- Supply Voltage
- 3.3V to 5V
- Response Time
- <10 ms
- Pin Count
- 4-pin (VCC, GND, DO, AO)
- Sensitivity Adjustment
- Onboard potentiometer
Frequently asked questions
What is the price of LDR Light Sensor Module 4-Pin with LM393 Comparator (DO/AO) in Egypt?
LDR Light Sensor Module 4-Pin with LM393 Comparator (DO/AO) currently costs 40 EGP in Egypt.
Where can I buy LDR Light Sensor Module 4-Pin with LM393 Comparator (DO/AO) in Egypt?
LDR Light Sensor Module 4-Pin with LM393 Comparator (DO/AO) is available from ElectroHub. Compare the offers above to find the best price.
Which pins go to Arduino?
Connect VCC to 3.3V or 5V and GND to GND. Use DO on a digital pin for an on/off light threshold, and AO on an analog pin such as A0 to read brightness levels.
How do I set the light threshold?
Turn the onboard potentiometer while the module is powered and exposed to the light level you want to detect. The DO output switches when the light crosses that threshold. Check the module's indicator LED to confirm the output state for your setting.
