LM393 Optical Photosensitive best Digital LDR light sensor Module – 3 Pin for Arduino
₹45.00 incl. GST
- Precision Sensing: High-quality Light Sensor Module
for accurate ambient light detection. - Adjustable Sensitivity: Built-in potentiometer to customize light trigger levels.
- Dual Output LEDs: Onboard indicators for Power and Digital Output status.
- Stable Signal: Features the LM393 IC for a clean, noise-free digital output.
- Universal Compatibility: Works seamlessly with Arduino, Raspberry Pi, and ESP32.
- Wide Voltage Range: Operates efficiently on 3.3V to 5V DC.
- Compact & Ready: Small form factor with a mounting hole for easy installation.
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Scienticy LM393 Optical Photosensitive LDR Light Sensor Module
Empower your innovations with the Scienticy LM393 Optical Photosensitive LDR Light Sensor Module, the ultimate high-precision solution for intelligent light sensing. Specifically engineered to detect ambient light intensity with extreme accuracy, this module is the perfect choice for both electronics hobbyists and professional engineers. Featuring the industry-standard LM393 Voltage Comparator IC and a premium-grade LDR, it delivers a stable, noise-free digital signal that outperforms standalone photoresistors. Whether you are building automated street lights or advanced smart home systems, this reliable module ensures consistent performance and seamless automation for all your DIY projects.
Key Features LDR Light Sensor Module:
- 🎯 Adjustable Sensitivity: Built-in multi-turn potentiometer lets you fine-tune the light threshold. Set the exact brightness or darkness level required to trigger your project with precision.
- 💡 Dual Status Indicators: Features two onboard LEDs—a Power LED (Red) to confirm the connection and an Output LED (Green) that lights up when the sensor is triggered, making debugging effortless.
- 🔌 Universal Compatibility: Operates on a flexible 3.3V to 5V DC range. Fully compatible with Arduino, Raspberry Pi, ESP32, ESP8266, and other popular development boards.
- ⚡ Reliable Digital Output: The digital output (DO) provides a clean signal (up to 15mA) to microcontrollers or can directly drive a Relay Module for instant automation.
- 🛠️ Compact & Easy Installation: Small form factor with a pre-drilled M3 mounting hole, making it incredibly easy to secure inside enclosures or tight project spaces.
Technical Specifications LDR Light Sensor Module:
| Feature | Specification |
|---|---|
| Sensor Type | Optical Photosensitive LDR (Photoresistor) |
| Main Chip | LM393 Voltage Comparator IC |
| Operating Voltage | 3.3V to 5V DC |
| Current Consumption | ~15mA (Low Power Design) |
| Output Format | Digital Switching Output (0 and 1) |
| Pin Configuration | 3-Pin Interface (VCC, GND, DO) |
| Module Dimensions | Approx. 31mm x 14mm |
| Sensitivity | Adjustable via On-board Potentiometer |
Pin Connection Guide:
- VCC: Connect to 3.3V – 5V Power Supply
- GND: Connect to Ground
- DO: Digital Output Signal (Connect to Arduino I/O Pin)
Popular Applications LDR Light Sensor Module:
- 🏠 Smart Home Automation: Create automatic night lamps, smart curtains that close at sunset, and energy-saving indoor lighting systems.
- 🛣️ Intelligent Street Lighting: Perfect for designing automatic street light controllers and smart garden lighting that turns on only when it’s dark.
- ☀️ Solar Energy Optimization: Ideal for building solar tracking systems that move solar panels toward the light to maximize energy efficiency.
- 🤖 Robotics & DIY Projects: Use it for light-following robots, obstacle detection, or simple light-activated gadgets.
- 🔒 Smart Security Systems: Build laser-based security alarms or intrusion detection systems that trigger when a light beam is broken.
Quick FAQs for LDR Light Sensor Module:
Q1: What is the LDR Light Sensor Module used for?
It is used to detect ambient light intensity for projects like automatic street lights, night lamps, and Arduino smart home automation.
It is used to detect ambient light intensity for projects like automatic street lights, night lamps, and Arduino smart home automation.
Q2: How do I adjust the sensor’s sensitivity?
You can easily adjust the threshold by turning the built-in blue potentiometer to match the lighting conditions of your environment.
You can easily adjust the threshold by turning the built-in blue potentiometer to match the lighting conditions of your environment.
Q3: Is this Light Sensor Module compatible with Arduino?
Yes, it works perfectly with Arduino, Raspberry Pi, and ESP8266, supporting a wide voltage range of DC 3.3V to 5V.
Yes, it works perfectly with Arduino, Raspberry Pi, and ESP8266, supporting a wide voltage range of DC 3.3V to 5V.
Q4: What does the LM393 IC do in this module?
The LM393 comparator ensures a stable, noise-free digital output, providing much better accuracy than a basic photoresistor.
The LM393 comparator ensures a stable, noise-free digital output, providing much better accuracy than a basic photoresistor.
Q5: Does it provide digital or analog output?
This is a 3-pin digital module that outputs a HIGH or LOW signal based on the light intensity threshold you set
This is a 3-pin digital module that outputs a HIGH or LOW signal based on the light intensity threshold you set
Scienticy: Shape Your Imagination with Quality Components.
| Weight | 100 g |
|---|---|
| Dimensions | 10 × 10 × 5 mm |
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