Overview

The Laser Sensor is an I²C sensing module with absolute distance measurement capability. It uses laser ranging principles to measure distances between 21 mm and 1999 mm with 1 mm accuracy and returns data at a fixed frequency of 50Hz. The module features a timeout detection mechanism that actively issues alerts when data responses are absent, making it suitable for positioning applications

requiring high stability and real-time performance.

Feature

• Supports absolute distance measurement, range 21-1999 mm, accuracy up

to 1 mm.

• Fixed sampling frequency of 50Hz (returns data up to 50 times per second)

• Distance data returned via 16-bit values (high and low bytes)

• Equipped with timeout detection function to identify detection failures or

abnormal conditions

• Uses I²C communication interface, supporting 3.3V to 5V voltage systems

Application

• Robot positioning and obstacle avoidance judgment

• Camera focusing or depth of field applications

• Level measurement and posture stabilization devices

• High-precision distance sensing needs (e.g., autonomous navigation or automatic doors)

Electrical Characteristics

Glossary:

1. Sampling Frequency* The number of times data is returned per second. Fixed at 50Hz and cannot be changed.

2. I²C Transmission Speed* Indicates the data transmission rate, measured in kilohertz (kHz). A higher value means faster communication.

3. I²C Input Low Voltage (VIL)* If the controller sends a voltage lower than this value, the sensor reads it as 0 (LOW).

4. I²C Input High Voltage (VIH) * If the controller sends a voltage higher than this value, the sensor reads it as 1 (HIGH).

Pinout