Sensor
HW-201 Infrared Obstacle Avoidance Sensor
The HW-201 is an infrared obstacle avoidance sensor that detects objects in front of it using reflected infrared light. It's commonly used in robotics for obstacle detection and avoidance.
Difficulty
Beginner → Advanced
Category
Electronics
How it works
How this sensor works
The module emits infrared light from its transmitter. If an object is within range, the light reflects back and is picked up by the receiver. When reflected IR is detected, the sensor's digital output pin changes state, signaling that an obstacle is present. The module has an onboard potentiometer to adjust detection distance.
Applications
Common use cases
Required
Components needed
Projects
Related projects
Build something with this sensor.
Detecting Obstacles with HW-201 on Raspberry Pi Pico
Learn how to use the HW-201 infrared obstacle sensor with a Raspberry Pi Pico to detect nearby objec...
View projectDetecting Obstacles with HW-201 on ESP32
Learn how to use the HW-201 infrared obstacle sensor with an ESP32 to detect nearby objects. This pr...
View project