Cytron Technologies LSS05 Auto-Calibrating Line Sensor Module for Robotics - 5-Channel IR Array

The LSS05 module operates strictly at 5V DC. It includes reverse polarity protection to prevent damage from incorrect power connections. Ensure your power supply can provide a stable 5V output for reliable operation.

Calibration is performed via the side-mounted button. First, press the button to initiate a scan; the module will analyze the surface reflectivity for 4-5 seconds. Subsequent presses allow you to toggle between 'Dark-On' (senses dark lines) and 'Bright-On' (senses bright lines) logic modes. The settings are saved automatically.

The module provides five independent digital TTL outputs, one for each IR sensor channel. Each output pin delivers either 0V (logic low) when no line is detected or 5V (logic high) when a line is detected, making them directly readable by microcontroller GPIO pins without analog-to-digital conversion.

Yes. The sensor detects contrast, not color, and is effective on lines with sufficient reflectivity difference from the background. It is designed to detect line widths between approximately 1cm and 3cm. The auto-calibration routine dynamically adjusts the detection threshold for optimal performance on your specific surface.

Yes. The LSS05 module features non-volatile memory (EEPROM) that stores the calibrated threshold and selected logic mode. Once calibrated, these settings are retained indefinitely, even after a complete power cycle, so recalibration is only necessary if the surface conditions change significantly.