Waveshare DTOF Laser Lidar Sensor STL27L 360° Omni-Directional LiDAR is a high-performance ranging solution designed for robotics, mapping, and autonomous navigation. Using DTOF (Direct Time of Flight) laser technology, the STL27L Laser Lidar Sensor achieves precise distance measurement up to 30 meters, with accuracy unaffected by distance. With 360° omni-directional scanning, compact design, and strong anti-interference capability, the Waveshare STL27L Omni-Directional LiDAR provides reliable point cloud data for SLAM, obstacle detection, and AI robotics applications.
Features
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DTOF Laser Lidar Sensor – Measures distance by laser pulse time-of-flight, ensuring ±30mm accuracy up to 30m.
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360° Omni-Directional LiDAR scanning – Provides full environmental contour mapping and obstacle detection.
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High-frequency ranging – 21,600Hz ranging frequency with 10Hz scanning speed.
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Compact and lightweight design – Easy to embed in robots for improved passability.
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Anti-strong light interference – Operates reliably under 60KLux ambient light, suitable for indoor and outdoor use.
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Long lifetime brushless motor – Quiet operation with over 10,000 hours of service life.
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Safe infrared laser emitter – FDA Class 1 certified for human and pet eye safety.
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UART communication interface – Simple integration with microcontrollers and embedded systems.
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ROS/ROS 2 support – Compatible with mainstream robotics frameworks for easy development.
Specifications
| Ranging Distance | 0.03~2m | 2~8m | >8m |
|---|---|---|---|
| mean error | ±15mm | ±20mm | ±30mm |
| overall standard deviation | 5mm | 15mm | 25mm |
| Ranging Distance | 0.03~25.00m (target surface reflectivity is 80.6%) |
|---|---|
| Scanning Frequency | 10Hz |
| Scanning Angle | 360° |
| Ranging Frequency | 21600Hz |
| Angular Resolution | 0.167° |
| Wavelength | 895 ~ 915 nm (Typ 905) |
| Communication Interface | UART @ 921600 |
| Ambient Light Tolerance | 60 KLux |
| Power Supply | 4.5~5V (Typ 5V) |
| Power Consumption | 1.45W |
| Operating Current | 290 mA |
| Weight | 46.1g |
| Operating Temperature | -10°C ~ 50°C |
| Lifetime | 10000+ hours |
Application
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Robotics Navigation – Enables SLAM, autonomous mapping, and obstacle avoidance.
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AI Robot Development – Provides reliable point cloud data for ROS/ROS 2 projects.
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Indoor Mapping – High-precision scanning for warehouses, offices, and smart buildings.
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Outdoor Exploration – Resistant to strong light interference, suitable for drones and UGVs.
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Industrial Automation – Embedded in AGVs and robotic arms for precise distance measurement.
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Education & Research – Ideal for learning DTOF laser technology and 360° Omni-Directional LiDAR applications.
Part List
- DTOF LIDAR STL27L x1
- LiDAR Driver with ESP8266 adapter x1
- USB Type A to Type C cable ~1m x1
- PH2.0 to 1.27H cable ~11cm x1
- USB TO TTL module x1
- ZH1.5 4PIN Dupont cable x1
Outline dimensions
Resources & Services
WIKI: www.waveshare.com/wiki/DTOF_LIDAR_STL27L
More Detail
DTOF (Direct Time-of-Flight) Ranging Technology
The Waveshare DTOF Laser Lidar Sensor STL27L 360° Omni-Directional LiDAR adopts advanced DTOF technology, measuring distance based on the flight time of laser pulses. The maximum ranging distance reaches up to 25m, meeting most commercial application needs, with ±20mm accuracy within 8m. With efficient algorithms, the STL27L Laser Lidar Sensor achieves 360° Omni-Directional LiDAR detection for robots, autonomous mapping, and obstacle avoidance.
Software Start-Stop Control
Open-source demos and schematics allow personalized development and control of the Waveshare STL27L DTOF Laser Lidar Sensor, effectively prolonging its lifetime and enabling flexible operation.
Stable Performance & Long Lifetime
Equipped with a coaxial brushless motor, the Waveshare STL27L Omni-Directional LiDAR operates quietly without friction, supports high-speed wireless data transmission, and delivers stable performance. With a lifetime exceeding 10,000 hours, the Laser Lidar Sensor meets demanding project requirements.
360° Omni-Directional Laser Scanning
The Waveshare DTOF STL27L Laser Lidar Sensor rotates clockwise to achieve 360° Omni-Directional LiDAR scanning, generating contour maps and point cloud data for precise obstacle detection and SLAM.
Ranging Radius up to 25m
The STL27L DTOF Laser Lidar Sensor provides long-range detection up to 25m, ensuring large-area cruising and mapping capabilities for robots and autonomous systems.
High Real-time & Accurate Mapping
Supports scanning at 10Hz and measuring distance at 21,600Hz, reducing navigation blind spots and improving coverage for the Waveshare STL27L Omni-Directional LiDAR.
Multi-Echo Detection Technology
The STL27L DTOF Laser Lidar Sensor supports multi-echo detection, enabling glass wall recognition at specific angles. This reduces collisions during robot operation and enhances safety.
Strong Ambient Light Tolerance
With advanced filtering technology, the Waveshare STL27L Omni-Directional LiDAR operates reliably under 60Klux strong light, suitable for both indoor and outdoor environments.
Compact & Easy Integration
The Waveshare STL27L DTOF Laser Lidar Sensor features a compact structure, smaller size, and lower power consumption. It can be embedded inside robots to reduce overall size and improve mobility.
Laser Safety FDA Class 1
To ensure safety for humans and pets, the Waveshare STL27L Omni-Directional LiDAR uses a low-power infrared laser emitter driven by modulated pulses. It complies with FDA Class 1 human eye safety standards.