Infrared Obstacle Avoidance IR Sensor Module – Active Low Output, Detection Range 2–30cm
An infrared sensor (IR sensor) is a radiation-sensitive optoelectronic component with a spectral sensitivity in the infrared wavelength range 780 nm … 50 µm. IR sensors are now widely used in motion detectors, which are used in building services to switch on lamps or in alarm systems to detect unwelcome guests. IR Obstacle Avoidance Sensor Module with Active Low Output, ideal for robotics, Arduino projects, line-following robots, and obstacle detection systems. Reliable range detection from 2 cm to 30 cm.
₹ 29 ₹69
69
Sparkfun Detailed Product Description:
The Infrared Obstacle Avoidance IR Sensor Module is a compact, affordable, and easy-to-use solution for non-contact object detection. It emits infrared light and detects reflected IR rays from nearby objects to determine the presence or absence of an obstacle.
This module has a digital output (Active Low) — the output pin goes LOW when an obstacle is detected. It includes onboard potentiometers to adjust the detection range and sensitivity, making it ideal for line-following robots, obstacle-avoiding robots, automation systems, and interactive installations.
Compatible with Arduino, ESP32, Raspberry Pi, STM32, and other microcontrollers.
Key Features:
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Infrared proximity sensor for obstacle detection
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Active low digital output (LOW when obstacle detected)
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Adjustable detection range via onboard potentiometer
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Compatible with Arduino, Raspberry Pi, ESP8266, etc.
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Ideal for robotics, automation, DIY electronics
Technical Specifications:
| Parameter | Specification |
|---|---|
| Operating Voltage | 3.3V – 5V DC |
| Detection Range | ~2 cm – 30 cm (adjustable) |
| Output Type | Digital (Active Low) |
| IR Wavelength | 850–950 nm (typically) |
| Board Size | ~3.1 cm × 1.5 cm |
| Indicator LEDs | Power ON LED and Detection Status LED |
| Mounting Holes | Yes |
How to Use:
With Arduino (Sample Wiring):
| Sensor Pin | Arduino |
|---|---|
| VCC | 5V |
| GND | GND |
| OUT | D2 |
Arduino Code:
Applications:
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Obstacle avoidance in robots
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Line-following robot sensors
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Automatic parking systems
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Interactive installations and automation
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Home security or smart sensing
Package Includes:
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1 × Infrared Obstacle Avoidance IR Sensor Module – Active Low
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