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| Parameter Category | Item | Specification Details |
|---|---|---|
| Basic Parameters | Module Model | 9-Channel Infrared Line Tracking Module with Indicator Lights (A055) |
| Basic Parameters | PCB Outline Dimension | 72.00mm × 31.00mm |
| Basic Parameters | Effective Sensing Area | 64.00mm × 16.00mm |
| Basic Parameters | Sensing Unit | 9 groups of independent infrared transmit & receive pairs (U1~U9). Horizontal layout improves horizontal track recognition accuracy |
| Basic Parameters | Driver Chip | U10/U11/U12 triple comparator chips (Typical LM393), processing threshold comparison for 9 channels of signals |
| Basic Parameters | Detection Distance | 1~20mm adjustable. Dual potentiometers DJ1/DJ2 adjust sensitivity in zones, adapting to different installation heights above ground |
| Basic Parameters | Output Signal | TTL digital level. High level = black line / low reflectivity area detected; can be directly connected to MCU IO pins |
| Basic Parameters | Supply Voltage | 3.3V~5V DC, 5V recommended. Compatible with 3.3V MCUs, matches mainstream main controller power supply systems |
| Basic Parameters | On-board Hardware | PWR power indicator, independent status LEDs for 9 channels, dual sensitivity potentiometers, ambient light suppression switch LIGHT/SW1. Debug status can be observed directly |
| Basic Parameters | Product Weight | Bare PCB: approx.9g; Finished module with soldered components: approx.15g. Mass production weight tolerance ±1g, suitable for lightweight installation of smart cars |
| 11Pin FPC Header Interface | VCC | Positive power input. Connect 5V/3.3V to supply power for infrared pairs, comparators and indicators on board |
| 11Pin FPC Header Interface | GND | Negative power. Must share ground with MCU for unified level reference to avoid signal drift |
| 11Pin FPC Header Interface | OUT1~OUT9 | 9-channel detection signal outputs, corresponding to channel U1~U9. Independent output of each channel without mutual interference |
| 11Pin FPC Header Interface | LED | Channel indicator control pin (Optional, for status feedback). Supports external extended indicator groups for remote status monitoring |
| Core Feature - 9-Channel Parallel Sampling | Higher detection density than 8-channel modules, accurately recognizes cross tracks, S-curves and complex multi-branch competition tracks | More sampling points capture tiny track deviation; vehicles are less likely to deviate from tracks during high-speed turning and crossing intersections |
| Core Feature - Dual Potentiometer Zonal Adjustment | Two groups of adjustable potentiometers calibrate detection thresholds for different zones, adapting to tracks with uneven reflectivity | Independent sensitivity calibration for left and right zones, solving single-side detection failure caused by inconsistent base color and wear on both sides of tracks |
| Core Feature - Independent Channel Indicators | Each channel equipped with status LED to display detection results in real time; oscilloscope is not required during debugging | Channel trigger status can be judged directly via onboard lights, greatly shortening track debugging and fault troubleshooting time |
| Core Feature - Ambient Light Suppression Switch | Enable/disable strong light filtering to reduce reflection interference from sunlight and indoor lighting | Filters ambient infrared interference in outdoor, window-side and ceiling-lit venues, ensuring stable black line recognition |
| Core Feature - Pure Digital Output | No ADC analog-to-digital conversion required. MCU general IO pins read level directly to locate black lines | Occupies no MCU ADC resources, simple program logic, ideal for beginner learning and competition development |
| Core Feature - Anti-Interference Circuit | Built-in filter capacitors and current-limiting resistors restrain power ripple and electromagnetic interference, stable output without jitter | Mitigates power fluctuation and electromagnetic radiation from motor startup & stop, reduces signal glitches for smoother line tracking |
| Packaging Option | Optional Packages | ① Anti-static soft bag ② White hanging-hole card box ③ Kraft paper box |
