When an object enters the detection zone, it reflects the infrared light back toward the sensor.
To use the FC-51 effectively, you it using the on-board potentiometer. The calibration process adjusts the sensitivity threshold of the LM393 comparator.
The is a popular obstacle avoidance module commonly used in robotics to detect objects at close range. Key Specifications Operating Voltage: 3.3V to 5V DC. Fc 51 Ir Sensor Datasheet
while True: value_d = sensor_d.value() print(value_d) if value_d == 0: # Object detected led_onboard.on() else: # No object led_onboard.off() sleep(0.2)
Digital TTL level (Low logic when obstacle is detected) Output Drive Capability: Clean signal, greater than 15mA Dimensions: 32mm × 14mm Mounting Hole Size: 3mm (Screw diameter) Pinout Configuration When an object enters the detection zone, it
The LM393 comparator provides a stable, clean digital output signal.
Digital signal (TTL level). It outputs a Low logic level when an obstacle is detected and a High level when the path is clear. The is a popular obstacle avoidance module commonly
The detection range is highly dependent on the . A white, glossy surface will be detected much farther away than a black, matte surface. The 2–30 cm range specification is typical for a standard, neutral-colored target in ideal conditions.
Search the module name "FC-51 IR sensor datasheet" plus the vendor name or part number printed on the PCB; look for PDF datasheets from electronics suppliers or manufacturers.