LM393 Photosensitive Light-Dependent Control Sensor LDR Module

Product Description:
Automate your projects with precision using the LM393 Photosensitive LDR Sensor Module. This light-detection module uses an LDR (Light Dependent Resistor) in combination with an LM393 comparator chip to detect light intensity and output a clean digital signal. Ideal for building light-activated devices such as automatic lighting, solar trackers, smart robots, and more.

The onboard potentiometer allows you to adjust the light sensitivity threshold, making this module highly versatile for various lighting environments. Compatible with Arduino, Raspberry Pi, and other microcontroller platforms, it’s an essential sensor for any smart project or automation setup.

Key Features:

🔦 Detects Ambient Light Intensity – Ideal for automatic lighting and daylight sensing
⚙️ Adjustable Sensitivity – Onboard potentiometer to set light threshold
💡 Digital Output – Clean HIGH/LOW signal based on light level
🔧 Easy to Use – Compatible with Arduino, ESP32, Raspberry Pi, etc.
🔌 LM393 Comparator IC – Provides stable and reliable output

Technical Specifications:

Sensor Type: LDR (Light Dependent Resistor)

Comparator IC: LM393

Operating Voltage: 3.3V – 5V DC

Output Type: Digital (0 or 1 based on light intensity)

Adjustable Threshold: Yes (via potentiometer)

Output Indicator: LED onboard (lights up when condition is met)

PCB Size: Approx. 3.2cm x 1.4cm

Mounting Hole: Yes

Interface Pins:

VCC: Power Supply

GND: Ground

DO: Digital Output

Applications:
✅ Automatic Light Control Systems
✅ Light-Activated Alarms or Relays
✅ Solar Tracking Devices
✅ DIY Electronics & Arduino Projects
✅ Smart Home & IoT Applications
✅ Classroom & Educational Kits

7 days replacement warranty applicable only for manufacturing defects. No warranty for physical damage or misuse.

Q1. Are these products tested before shipping?

A: Yes, all components are pre-checked and securely packed to ensure they are in working condition at the time of dispatch.

Q2. Do you offer a warranty?

A: Yes, we offer a 7-day replacement warranty only for manufacturing defects. Physical damage or misuse is not covered.

Q3. How can I claim a replacement?

A: If there’s a manufacturing issue, please contact us within 7 days of delivery with an unboxing video and a clear description of the issue. We’ll guide you through the process.

Q4. How long will delivery take?

A: Orders are usually shipped within sameday if ordered before 2pm & next day dispatch for after 2pm orders. Delivery time depends on your location and courier partner, typically 3–7 working days.

Q5. Is GST invoice available?

A: Yes, we provide a GST invoice with every order. Please enter your GST details at checkout if applicable.

Still have questions?

📩 Chat with us via the WhatsApp icon or email us at enquiry@circuitranger.in