Fc 51 Ir Sensor Datasheet Hot Jun 2026

FC-51 IR Obstacle Avoidance Sensor is a popular module for robotics and automation, primarily used for proximity detection and obstacle avoidance

⚠️ Always verify the operating voltage of your specific module before connecting it to a 5V supply. Most FC‑51 modules are 3.0–6.0 V tolerant, but some clones may have a lower maximum.

Always calibrate using the actual objects your system will encounter. If you need consistent range regardless of surface, consider a time‑of‑flight (ToF) sensor or a sharp IR distance sensor. fc 51 ir sensor datasheet hot

#define SENSOR_POWER 7 #define SENSOR_OUT 2

The FC‑51 infrared (IR) obstacle avoidance sensor module is one of the most widely used building blocks in hobbyist and entry‑level professional robotics. Its combination of low cost, simplicity, and surprisingly robust performance has made it a go‑to component for applications ranging from line‑following robots to automated production counters. This article provides a complete, up‑to‑date technical reference for the FC‑51 IR sensor – covering every aspect of its official , plus field‑tested insights into calibration, troubleshooting, and real‑world performance "hot" topics that engineers and makers are discussing right now. FC-51 IR Obstacle Avoidance Sensor is a popular

The FC-51 IR sensor is proof that sophisticated user experiences don’t require expensive components. Whether you’re building a touchless kitchen helper or a gesture-controlled DJ booth, this $2 sensor delivers reliable, low-latency interaction. In a world moving toward contactless everything, the FC-51 is the quiet enabler of playful, hygienic, and smart living.

FC-51 IR Obstacle Avoidance Sensor is a digital proximity module commonly used in robotics for short-range detection. If your sensor is running If you need consistent range regardless of surface,

The reflective IR principle works very well for distinguishing between white and black surfaces. A robot equipped with FC‑51 modules can follow a dark line on a light background.

void setup() pinMode(SENSOR_POWER, OUTPUT); pinMode(SENSOR_OUT, INPUT);