FC-51 IR Obstacle Avoidance Sensor is a popular module for robotics and automation, primarily used for proximity detection and obstacle avoidance
: Typically 2cm to 30cm (adjustable via the onboard potentiometer). Detection Angle : 35°.
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While both use IR light, they are optimized for different tasks. Here is a comparison:
A pair of infrared tubes (one for transmitting, one for receiving). Onboard LEDs: Power LED: Lights up when the module is powered.
Working on an obstacle avoidance robot or a line follower? The FC-51 Infrared Obstacle Avoidance Sensor is a staple for Arduino and ESP32 projects. If you are looking for the specs, pinouts, and technical details to get your build moving, check out the datasheet below.
If your FC-51 is triggering DC motors or relays, ensure those motors are on a completely separate power supply. Inductive kickback from motors can send high-voltage spikes back down the power rail, destroying delicate sensors like the FC-51.
The FC‑51 IR sensor is an excellent choice when you need:
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