Digital LDR Module – 3 Pin
The Digital LDR Module is used to detect the presence of light / measuring the intensity of light. The output of the module goes high in the presence of light, and it becomes low in the absence of light. The sensitivity of signal detection can be adjusted using the potentiometer.
Use it to detect the light brightness in your environment and decide to switch OFF or ON light? Or maybe to adjust the brightness of the LED of your house?
You can adjust the threshold (sensitivity) of the digital output by tuning the onboard variable resistor (potentiometer). Simple usage as it is the digital output, so you will know is the light present and decide what to do with it.
It comes with an M3 mounting hole for ease of attaching it to an object. Onboard, it provides an LDR, high sensitivity and commonly being used for light detection. The module comes with a power LED and a status LED as an indicator.
LDR Module Photosensitive resistor module most sensitive to environmental light intensity is generally used to detect the ambient brightness and light intensity.
How it works
1. Module light conditions or light intensity reach the set threshold, DO port output high when the external ambient light intensity exceeds a set threshold, the module D0 output low.
2. Digital output D0 directly connected to the MCU, and detect high or low TTL, thereby detecting ambient light intensity changes.
3. Digital output module DO can directly drive the relay module, which can be composed of a photoelectric switch.
Pin details.
VCC ↔ 3.3V to 5V DC.
GND ↔ Ground.
DO ↔ Digital Output.
Features
- LM393 based design.
- It can detect ambient brightness and light intensity.
- Adjustable sensitivity (via blue digital potentiometer adjustment).
- Output Digital – 0V to 5V, Adjustable trigger level from preset.
- LEDs indicating output and power.
Package Includes
1 x LDR Module.
I2C Sensor Address Conflict: Fix Multiple Sensors on One Bus
You have built a sophisticated Arduino project with multiple sensors — a BMP280 for pressure, a DHT20 for...
Read More →
MHZ19 CO2 Sensor UART: Budget NDIR Indoor Air Monitor
Indoor CO2 concentration is one of the most overlooked factors in workplace productivity, classroom learning outcomes, and sleep...
Read More →
PIR Motion Sensor: How It Works + Arduino Project
A PIR sensor (Passive Infrared Sensor) is one of the most popular components in electronics for motion detection....
Read More →Technical Specifications
| Pin Count | 3-pin |
|---|---|
| SKU | AI0830 |
| Weight | 0.0 kg |
| Availability | Out of Stock |
Applications & Use Cases
The Digital LDR Module - 3 Pin is a versatile light/color sensor used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
Shreyas Mishra (verified owner) –
Good Digital LDR Module – 3 Pin. Works as described. Calibration needed some patience but results are good.
Milan Dhawan (verified owner) –
This Digital LDR Module – 3 Pin is a must-have for sensor projects. Plug and play with Arduino.
Sarika Batra (verified owner) –
Average Digital LDR Module – 3 Pin. Readings fluctuate a bit. Works for rough measurements.
Pranav Negi (verified owner) –
Good Digital LDR Module – 3 Pin. Works as described. Calibration needed some patience but results are good.
Sarthak Bose (verified owner) –
Good Digital LDR Module – 3 Pin. Works as described. Calibration needed some patience but results are good.
Deepika Banerjee (verified owner) –
Good quality Digital LDR Module – 3 Pin. Some variation in readings but within acceptable range.
Aanya Nair (verified owner) –
This Digital LDR Module – 3 Pin works great with Arduino. Easy to wire up and code.
bipin Makani (verified owner) –
Lalit Das (verified owner) –
Outstanding accuracy from this Digital LDR Module – 3 Pin. Compared with a professional instrument, readings match closely.
Urmi Khurana (verified owner) –
Great quality Digital LDR Module – 3 Pin. Calibrated it easily and the accuracy is impressive.
Aman Mukherjee (verified owner) –
Great Digital LDR Module – 3 Pin. Using it in my smart agriculture system. Reliable measurements every time.
Kiara Thakur (verified owner) –
Nice Digital LDR Module – 3 Pin. Readings are mostly accurate. Good enough for my hobby project.
Yash Rajan (verified owner) –
Decent Digital LDR Module – 3 Pin for the price. Requires proper wiring but works well once set up.
Pankaj Gupta (verified owner) –
Excellent sensitivity and range on this Digital LDR Module – 3 Pin. Works better than I expected.
Nakul Batra –
This Digital LDR Module – 3 Pin is excellent for the price. My data logging project is working perfectly now.
Pankaj Reddy (verified owner) –
Perfect for my weather station. This Digital LDR Module – 3 Pin gives consistent readings day and night.
Dhruv Gill –
This Digital LDR Module – 3 Pin is excellent for the price. My data logging project is working perfectly now.
Ananya Hegde (verified owner) –
Very satisfied with this Digital LDR Module – 3 Pin. Library support is good and it’s easy to interface.
Sarika Trivedi (verified owner) –
This Digital LDR Module – 3 Pin is a must-have for sensor projects. Plug and play with Arduino.
Isha Verma (verified owner) –
Excellent sensitivity and range on this Digital LDR Module – 3 Pin. Works better than I expected.
Ayush Bhatt (verified owner) –
Pretty good Digital LDR Module – 3 Pin. Documentation could be better but the sensor itself is solid.
Tanvi Batra (verified owner) –
Outstanding accuracy from this Digital LDR Module – 3 Pin. Compared with a professional instrument, readings match closely.
Chitra Rawat (verified owner) –
Excellent sensitivity and range on this Digital LDR Module – 3 Pin. Works better than I expected.
Kunjan Temkar (verified owner) –
Devansh Saxena (verified owner) –
Nice Digital LDR Module – 3 Pin. Readings are mostly accurate. Good enough for my hobby project.
Priya Sen (verified owner) –
Excellent Digital LDR Module – 3 Pin! Readings are accurate and consistent. Perfect for my project.
Sunny Saini (verified owner) –
Naveen Pandey (verified owner) –
Perfect Digital LDR Module – 3 Pin for my automation project. Integrates seamlessly with my microcontroller.
Vinay Bose –
Very satisfied with this Digital LDR Module – 3 Pin. Library support is good and it’s easy to interface.
Yashwant Desai (verified owner) –
This Digital LDR Module – 3 Pin is excellent for the price. My data logging project is working perfectly now.
Anjali Choudhury (verified owner) –
Good quality Digital LDR Module – 3 Pin. Some variation in readings but within acceptable range.
Anirudh Panchal (verified owner) –
Decent Digital LDR Module – 3 Pin for the price. Requires proper wiring but works well once set up.
Aryan Sharma (verified owner) –
Good Digital LDR Module – 3 Pin. Works as described. Calibration needed some patience but results are good.
Rohan Tiwari (verified owner) –
Excellent Digital LDR Module – 3 Pin! Readings are accurate and consistent. Perfect for my project.
Yogesh Bhatt (verified owner) –
Great quality Digital LDR Module – 3 Pin. Calibrated it easily and the accuracy is impressive.