Lidar Ranging Sensor | 8m ToF Laser Distance Module | Arduino & Pixhawk

This TF-Luna LiDAR sensor measures distance up to 8 meters. It's a small, low-power option that uses Time-of-Flight (ToF) technology. This gives it better accuracy in different light conditions than a typical ultrasonic sensor, which is good for robots and drones. Features and Benefits - ToF LiDAR Technology - It measures distance with a focused light beam. This gives you readings accurate to within ±6cm. - 8-Meter Detection Range - The TF-Luna sensor works well for avoiding obstacles and sensing altitude over short to medium distances. - UART and I2C Interfaces - These common connections make it easy to link the LiDAR module to an Arduino, Pixhawk, or other microcontrollers. - Low Power Consumption - It uses less than 0.35W. This helps batteries last longer on mobile projects, like a TF-Luna sensor for drones. Applications - Robotics - Use the TF-Luna LiDAR for obstacle avoidance. This helps autonomous robots move around objects. - Drones - Add it for things like holding altitude, following terrain, or making accurate landings. - Presence Detection - Build systems that can tell when a person or object enters a specific area. How It Works This Laser Range Finder employs Lidar Ranging Sensor technology to measure distances. Unlike ultrasonic sensors, which use sound waves, Lidar sensors utilise light. The device emits a pulse of light from its VCSEL light source. This light travels to a target, reflects off it, and returns to the sensor. The internal electronics then precisely measure the time taken for the light to travel to the target and back. Since the speed of light is constant, this time-of-flight (ToF) measurement allows for an accurate calculation of the distance to the object, up to an 8m range. The Formula The core principle behind this Lidar Ranging Sensor is the Time-of-Flight (ToF) formula. This involves measuring the total travel time of a light pulse and using the known speed of light to calculate distance. The formula is: Distance = (Speed of Light × Time) / 2. The division by two accounts for the light travelling to the object and then back to the sensor. This precision measurement, rather than relying on sound waves like ultrasonic sensors, allows for accurate ranging up to 8m, providing reliable data for various applications. Key Components At its core, this Laser Range Finder is a module containing several key components. The primary light source is a VCSEL, which emits the laser light pulses. A detector then precisely measures the returning light. The internal processing unit handles the Time-of-Flight (ToF) calculations, converting the light travel time into a distance measurement. For integration, the module offers both UART and IIC interfaces, ensuring compatibility with platforms like Arduino and Pixhawk. This compact design allows for straightforward integration into existing systems. Common Applications This 8m Single-Point Lidar Sensor is suitable for a variety of applications where precise distance measurement is required. Its compatibility with Arduino and Pixhawk makes it ideal for robotics projects, enabling obstacle detection and navigation. It can also be used in automation for object positioning or level sensing. Unlike some ultrasonic sensors that might be affected by material properties, this Lidar sensor, with its VCSEL light source, offers consistent performance for ranging up to 8m in diverse environments, providing reliable data for control systems. Advantages & Limitations A key advantage of this Laser Range Finder is its use of Lidar Ranging Sensor technology, offering precise distance measurements up to 8m, which can be more accurate than some ultrasonic sensors in certain conditions. Its VCSEL light source ensures consistent performance. The dual interface options (UART, IIC) and compatibility with Arduino and Pixhawk provide significant flexibility for integration. A limitation, however, is that while it excels at single-point ranging, it does not provide the broad area scanning capabilities of more complex Lidar systems. Its maximum range is specified at 8m.