IR Obistacle Avoidance

IR Obstacle Avoidance Sensor Module

The IR Obstacle Avoidance module is a compact, low‑power infrared distance sensor engineered for rapid obstacle detection in robotics, automation, and handheld devices. It utilizes a 940 nm IR LED to emit a beam that is reflected by nearby objects and captured by a photodiode array. The sensor provides a dual output—analog voltage proportional to distance and a TTL logic signal for instant presence detection—making it versatile for both analog and digital control systems.

Designed for operation within a 2 cm to 50 cm (1.5″–20″) range, the module delivers a response time under 20 ms and operates on 2.4 V to 5.5 V DC, allowing integration with microcontrollers, motor drivers, and voltage‑regulated power supplies. Its wide detection angle of ±15° ensures reliable detection in cluttered environments while its small footprint (circuit board size 25 mm × 15 mm) facilitates placement on PCB prototypes or 3‑D‑printed mounts.

• Key Spec 1: Operating Voltage: 2.4 V–5.5 V DC
• Key Spec 2: Effective Detection Range: 2 cm to 50 cm (1.5″–20″) with ±10 % accuracy
• Key Spec 3: Response Time: < 20 ms from object detection to output signal
• Common Use Case: Ideal for mobile robot obstacle avoidance, drone collision detection, and line‑following robot guidance systems