Description:
The 8 Channel Infrared Detection Line Tracking Sensor Module contains 8 IR LED/phototransistor pairs. Each sensor has a separate digital I/O measurable output . This reflection sensor array is designed to be used as a line sensor, but it may also be used as a proximity or reflection sensor. The module serves as a carrier for eight IR emitter and receiver (photo-transistor) pairs that are uniformly placed at 0.35" inch intervals.
It works by detecting infrared light that is emitted, reflected, and detected by the synchronous circuit. The intensity of the light is then utilized to determine if an item exists. It can easily distinguish between black and white lines. In other words, when a phototransistor passes through black and white lines, its different conduction levels might produce different output voltages. The value of all 8 outputs is used to determine the position of the tracking line.
Features:
High-Density Array: 8 sensors spaced at roughly 9.5mm intervals allow the robot to determine not just if it's on a line, but exactly how far from the center it is.
Dual Output Support: Many variants offer both Digital (TTL) outputs for simple logic and Analog outputs for PID control and more nuanced path tracking.
Adjustable Sensitivity: Most boards include a potentiometer or a "key calibration" function to adapt to different floor materials and ambient lighting.
Standard Interface: Designed for easy connection with Arduino, Raspberry Pi, and ESP32 using standard 2.54mm or PH2.0 headers.
Built-in Indicators: Onboard LEDs provide immediate visual feedback for each channel, making debugging without a serial monitor much easier.
Specifications:
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Input Voltage: 3.3V-5V
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Supply current: 100 mA
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8- way reflective optical sensors
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Optimal sensing distance: 0.125" (3mm)
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Make the output signal cleaner
