IR (Infrared) Obstacle Avoidance Sensor Module
IR (Infrared) Obstacle Avoidance Sensor Module
IR (Infrared) Obstacle Avoidance Sensor Module
Detect obstacles and objects with precision using this compact IR Obstacle Avoidance Sensor Module from The Tech Depot, Bengaluru. Built around an infrared emitter-receiver pair and the LM393 comparator, this module delivers reliable digital output for robotics, automation, and proximity-sensing projects. Adjustable detection range, simple 3-pin interface, and onboard indicator LEDs make it the go-to choice for beginners and professionals alike. Fast shipping across India with full technical support.
Specifications
| Module Type | IR Infrared Obstacle Avoidance Sensor |
| Comparator IC | LM393 Dual Comparator |
| Operating Voltage | 3.3V - 5V DC |
| Output Type | Digital (High/Low TTL) |
| Detection Range | 2 cm - 30 cm (adjustable via potentiometer) |
| Detection Angle | ~35 degrees effective cone |
| IR Wavelength | ~940 nm (near-infrared) |
| Output Current | >= 15 mA (can drive small loads directly) |
| Operating Current | ~20 mA typical |
| Onboard Indicators | Power LED (Red) + Signal LED (Green) |
| Sensitivity Adjustment | Onboard multi-turn potentiometer |
| Interface Pins | VCC, GND, OUT (3-pin header) |
| PCB Dimensions | ~32 mm x 14 mm |
| Mounting | 2 x M3 screw holes for easy chassis mounting |
| Connector Compatibility | Standard 2.54 mm pitch header / Dupont cables |
| Compatible Boards | Arduino, ESP32, ESP8266, Raspberry Pi, STM32, PIC, 8051 |
| Origin | Original / Authentic Quality Module |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 Technical Assistance |
Key Features
- Reliable LM393 Comparator: Delivers clean, stable digital output with minimal noise, ensuring accurate obstacle detection even in electrically noisy environments.
- Adjustable Detection Range: Onboard precision potentiometer lets you fine-tune sensitivity from approximately 2 cm to 30 cm to suit your specific application.
- Simple 3-Pin Digital Interface: Just VCC, GND, and OUT - connect directly to any microcontroller GPIO pin without additional circuitry or ADC requirements.
- Dual Onboard LEDs: Power indicator confirms the module is energized; signal indicator provides real-time visual feedback when an obstacle is detected, simplifying debugging.
- Wide Voltage Compatibility: Operates seamlessly at both 3.3V and 5V logic levels, making it compatible with Arduino Uno, Nano, Mega, ESP32, ESP8266, Raspberry Pi, and more.
- Compact & Mountable Design: Slim PCB with M3 mounting holes integrates easily into robot chassis, conveyor systems, and custom enclosures.
- Fast Response Time: Near-instantaneous detection allows real-time obstacle avoidance in moving robots and automated systems.
- Low Power Consumption: Draws only ~20 mA, ideal for battery-powered and portable projects.
How It Works
The module pairs an infrared LED transmitter with a photodiode receiver positioned side by side. The IR LED continuously emits a beam of ~940 nm infrared light. When an object enters the detection zone, the IR light reflects off the surface and is picked up by the photodiode. The LM393 comparator compares the received signal level against a threshold set by the onboard potentiometer. If the reflected signal exceeds the threshold (obstacle present), the OUT pin goes LOW; if no obstacle is detected, OUT remains HIGH. This clean digital output can be read directly by any microcontroller.
Pin Configuration
| Pin | Label | Description |
| 1 | VCC | Power supply input (3.3V - 5V DC) |
| 2 | GND | Ground reference |
| 3 | OUT | Digital output - LOW when obstacle detected, HIGH when clear |
Wiring Guide - Arduino Uno Example
| Sensor Pin | Arduino Pin |
| VCC | 5V |
| GND | GND |
| OUT | D2 (or |
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy IR (Infrared) Obstacle Avoidance Sensor Module Online in India
Purchase the IR (Infrared) Obstacle Avoidance Sensor Module online at The Tech Depot - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on IR (Infrared) Obstacle Avoidance Sensor Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy IR (Infrared) Obstacle Avoidance Sensor Module at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.