1.5-channel tracing module with analog output - Function and output behavior - This tracing module provides an analog voltage output that relates to both distance to a line and the color of the detected object. - The output level is driven by infrared reflection: objects with strong reflection (white) produce a larger output voltage, while objects with weak reflection (black) produce a smaller output voltage. - Distance indication to a black line - The closer the detector is to a black line, the smaller the output voltage becomes. - You can judge the distance to the black line by monitoring the analog output: smaller values indicate closer proximity to the black line. - Color sensitivity and interpretation - Output varies with object color due to differences in infrared reflectivity. - Higher output corresponds to brighter/whiter surfaces, while lower output corresponds to darker surfaces, including black lines. - Compatibility and integration - Analog output is designed to be read by standard analog inputs (for example, an ADC on a microcontroller or data acquisition system). - The module provides a straightforward sensing solution without requiring digital processing to obtain line or distance information. - Practical use scenarios - Line following robots: detect and track black and white lines on the floor by observing changes in analog output as the robot moves across the surface. - Edge and feature detection in automation: monitor surface features with differing reflectivity to locate edges or marks on products or conveyors. - Basic quality inspection and alignment: compare reflectivity differences to identify white versus dark regions and assist in alignment tasks. - Practical notes - Output is influenced by both distance to the line and the surface color, so calibration may be needed when the surface color varies or lighting conditions change. - The description reflects the original behavior: analog output decreases as the detector approaches a black line, and increases with stronger infrared reflection on lighter surfaces.