Fc 51 Ir Sensor Datasheet

FC-51 IR Proximity Sensor - am I doing it wrong? - Arduino Forum

. It consists of an IR transmitter and receiver pair, using a comparator circuit (LM393) to provide a simple digital output Ktechnics Systems Technical Specifications Operating Voltage: 3.0V to 6.0V DC Current Consumption: approximately at 3.3V and Detection Range: 2 cm to 30 cm (adjustable via onboard potentiometer) Art of Circuits Detection Angle: Output Signal: Digital (High = No Obstacle, Low = Obstacle Detected) Art of Circuits Dimensions: Approximately 43mm x 16mm x 7mm Радіокомпоненти Pinout & Hardware Features

Used in sanitary environments to trigger devices (like hand sanitizers or water faucets) without physical touch. Technical Limitations and Considerations Fc 51 Ir Sensor Datasheet

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

Illuminates only when an object reflects enough IR light to trigger the output threshold. If this LED is on, the OUT pin is driving a LOW signal. Working Principle and Physics FC-51 IR Proximity Sensor - am I doing it wrong

delay(200); // Small delay to avoid flooding the serial monitor

, a tiny but mighty module that brings your creations to life. Technical Limitations and Considerations // If sensor reads

Before diving into the datasheet numbers, let's look at the physical interface. The FC-51 module typically has (although some variants have 4, with an extra analog output pin).

2cm to 30cm (Adjustable via onboard potentiometer) Detection Angle: 35 degrees