Fc 51 Ir Sensor Datasheet ~repack~ -

| Symbol | Parameter | Min | Typ | Max | Unit | | :--- | :--- | :--- | :--- | :--- | :--- | | VCC | Supply Voltage | 3.0 | 5.0 | 5.5 | V | | ICC | Supply Current | 5 | 15 | 25 | mA | | VOL | Output Low Voltage (sink) | 0 | 0.2 | 0.4 | V | | VOH | Output High Voltage (source) | 4.5 | 4.8 | 5.0 | V | | IOL | Output Low Current (max sink) | - | 10 | 15 | mA | | IOH | Output High Current (max source) | - | 5 | 10 | mA | | Tdet | Detection response time | - | 1.5 | 2.0 | ms |

// If sensor reads LOW (object detected) if (sensorValue == LOW) objectDetected = true; digitalWrite(ledPin, HIGH); // Turn LED ON Serial.println("Obstacle Detected!"); Fc 51 Ir Sensor Datasheet

void setup() pinMode(irSensorPin, INPUT); pinMode(ledPin, OUTPUT); Serial.begin(9600); Serial.println("FC-51 Obstacle Detector Ready"); | Symbol | Parameter | Min | Typ

Whether you are building a line-following robot, a proximity-based alarm, or a contactless tachometer, you will likely encounter the FC-51 module. However, to harness its full potential, one must understand its technical specifications, pin configuration, working principle, and interfacing details—all of which are found in its official . // Turn LED ON Serial.println("Obstacle Detected!")