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DTOF Laser Ranging Sensor 360° Omni-Directional Lidar UART Bus D500 Developer Kit


Date:2023-11-23 14:36
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DTOF Laser Ranging Sensor 360° Omni-Directional Lidar UART Bus D500 Developer Kit

Wiki,Tutorial,Program,Code,User Guide (Click here)


[] Do not include Raspberry Pi


[] STL-19P is mainly composed of a laser ranging core, a wireless transmission unit, a wireless communication unit, an angle measuring unit, a motor driving unit, and a mechanical case. The STL-19P ranging core adopts DTOF technology to measure 5000 times each second. When it works, STL-19P emits the infrared laser forward, and the laser is reflected in the single photon receiving unit after encountering the target object. Thus, we get both the time of laser emitting and receiving, the gap between them is the time of flight. We can calculate the distance by dividing the flight time by the speed of light. After receiving distance data, STL-19P will combine them with angel value from the angle measurement unit to comprise the points cloud data, then transmit the points cloud data to an external interface via wireless communication. Meanwhile, the external interface provides PWM to allow the motor driving unit to drive the motor. After the external control unit gets the rotational speed, it will reach to specified speed through PID algorithm closed-loop control to ensure STL-19P works stably.


[] Based on DTOF (Time of Flight) laser ranging technology

[] Support UART communication

[] Measuring radius 12m

[] 60K Lux anti-glare interference

[] 5000Hz measurement frequency

[] 360° scanning range

[] Laser Safety Meets FDA Class 1 Standards

[] Compact appearance

[] 10000+ hours of service life


[] Typical measuring range : 0.03~12m

[] Sampling frequency : 5000 Hz

[] Scanning frequency : 10 Hz

[] Angular resolution : ≤0.72°

[] Mechanical size : 38.59*38.59*33.50mm

[] Communication interface : UART @ 230400bps

[] Supply voltage : 5V

[] Working current : 290mA

[] Power consumption : 1.45W

[] Operating temperature range : -10℃~40℃

[] Scanning range : 360°

[] Ranging accuracy : 

10mm (300mm<measurement distance<=500mm)

20mm (500mm<measurement distance<=2000mm)

30mm (2000mm<measurement distance<=12000mm)


[] Education and Research

[] Robot obstacle avoidance

[] Measurement and Inspection

[] Smart Gesture Control

[] 2D Gesture Recognition

[] Autonomous navigation

[] Map reconstruction

[] Navigation and positioning


[] RANGING DISTANCE : 0.03 ~ 12.00m


±10 mm (within 0.3 ~ 0.5m)

±20mm (within 0.5 ~ 2m)

±30mm (within 2 ~ 12m)

[] SCANNING FREQUENCY : 6 ~ 13Hz (Typ 10Hz)



[] WAVELENGTH : 895 ~ 915 nm (Typ 905)






[] WEIGHT : 45g


[] LIFETIME : 10000+ hours

[] DIMENSIONS (L × W × H) : 54.00 × 46.29 × 35.00mm

DTOF (Direct Time Of Fight) Ranging Technology

[] Adopting DTOF (Direct Time of Fight) ranging technology, measuring distance according to the time-of-flight of the laser pulse, within the effective detection distance of 12m, the radar ranging accuracy will not change with the distance, and can reach the measurement accuracy of ±30 mm. With efficient algorithm logic to achieve 360 degrees detection of robot, autonomous mapping, and obstacle detection...

360° Omni-Directional Laser Scanning

[] Rotates clockwise in the ranging core to achieve 360-degree scanning and ranging of the surrounding environment, thus obtaining the contour map of the surrounding environment and the point cloud information of the location of obstacles

12m Ranging Radius

[]  Ensuring The Large-Area Cruising And Mapping Capabilities Of Robots

Anti-Strong Light Interference

[] Rigorous optical design and powerful chip can effectively avoid strong light interference, and can resist the strong light environment of 60000Lux, which can achieve indoors and outdoors high-frequency and high-precision distance measurement and accurate mapping

Exquisite, Compact, Stylish Appearance

[] It adopts a compact structure design, stylish appearance, smaller size, lower power consumption, and can be embedded inside the robot to reduce its size and improve its passability

Laser Safety FDA Class 1

[] To ensure the safety for humans and pets, a low power infrared laser emitter is used as the light source and is driven by modulated pulses, the laser completes the emitting action in a very short period of time, complying with the FDA Class 1 human eye safety rating

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[] Do not include Raspberry Pi

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