Fc 51 Ir Sensor Datasheet Upd 【Mobile Free】

| Pin Name | Function | Connection | | :--- | :--- | :--- | | | Power Supply (3.3V to 5V DC) | Connect to +5V or +3.3V on MCU | | GND | Ground | Connect to common ground | | OUT | Digital Output (TTL) | Connect to any digital input pin on MCU |

Unlike analog IR sensors (such as the TCRT5000-based modules), the FC-51 includes an onboard comparator circuit (typically an LM393 chip) that converts the analog signal from the phototransistor into a clean digital output. This makes it extremely easy to interface with microcontrollers like Arduino, Raspberry Pi, ESP32, or STM32. Fc 51 Ir Sensor Datasheet

By referencing this , you now have the complete technical picture: pinouts, voltage limits, range adjustment, code examples, and troubleshooting. Whether you’re building a line-following robot, a contactless switch, or a factory counter, the FC-51 offers a straightforward “detect or not detect” solution that integrates with almost any microcontroller. | Pin Name | Function | Connection |

Infrared LED emitter, Photodiode receiver, and an LM393 Voltage Comparator IC . 🔌 Pinout Configuration Whether you’re building a line-following robot