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High-Precision VL53L0X Time-of-Flight Distance Sensor With 2 m Range And I2C Interface
The M5Stack U010 Unit ToF is a compact laser distance-measurement expansion board based on the VL53L0X Time-of-Flight sensor. It measures distance by calculating the round-trip travel time of emitted 940 nm infrared laser light, enabling non-contact ranging with reduced dependence on target reflectivity compared with conventional reflected-intensity sensing methods. The sensor supports a specified measurement range of 3 cm to 200 cm, +/-3% accuracy, 1 mm resolution, and a response time of less than 30 ms.
The module communicates through the I2C interface at the default address 0x29 and uses an HY2.0-4P Grove connection for straightforward integration with compatible M5Stack controllers. Its integrated VCSEL laser emitter and SPAD receiver support compact ranging applications including robot obstacle detection, smart-home sensing, position monitoring, camera-assistance systems, and automated equipment. Two LEGO-compatible mounting holes allow the module to be secured to compatible structures or mounted using suitable screws. For measurements approaching 200 cm, Long Range mode and low-infrared-interference conditions are required.
Key Features
- VL53L0X ToF Sensor: Integrated laser-ranging sensor provides non-contact distance measurement
- Measurement Range: Supports distances from 3 cm to 200 cm under suitable operating conditions
- Measurement Accuracy: Provides specified accuracy of +/-3%
- High Resolution: Measures distance with 1 mm resolution
- Fast Response: Provides a response time of less than 30 ms
- 940 nm VCSEL: Integrated infrared vertical-cavity surface-emitting laser supports Time-of-Flight ranging
- SPAD Receiver: Built-in single-photon avalanche diode array detects returning infrared light
- I2C Communication: Uses I2C with a default device address of 0x29
- Grove Connectivity: HY2.0-4P Grove interface simplifies connection to compatible M5Stack controllers
- Compact Construction: Measures 32 x 24 x 8 mm for integration into space-constrained projects
- Flexible Mounting: Includes 2 LEGO-compatible holes for mechanical installation
- Long-Range Mode: Supports measurements up to 200 cm when configured for Long Range operation under suitable ambient conditions
- Development Support: Compatible with UIFlow1, UIFlow2, and Arduino IDE
Applications
- Laser distance measurement
- Robot obstacle avoidance
- Proximity detection
- Smart-home automation
- Object-distance monitoring
- Position and presence sensing
- Camera autofocus assistance
- Depth-mapping experiments
- 3D sensing projects
- Automated equipment
- Educational robotics
- Embedded sensing systems
Model Size
Package Includes:
- 1 x Unit ToF
- 1 x HY2.0-4P Grove Cable (20cm)
