Unit ToF
Description
ToF that employs time-of-flight techniques to resolve distance between the emit point and the reach point of a subject, measuring the round trip time of an artificial light signal provided by a laser.
This unit integrated a distance measuring sensor VL53L0x providing accurate distance measurement whatever the target reflectance, unlike conventional technologies. It can measure absolute distances up to 2m in less than 30ms.
This unit communicates with M5Core via I2C(0x29).
- In this case, make sure you use the 3.3V on SDA and SCL, M5Core GROVE provide 3.3V to data pins, 5V to power pin. only 3.3v allowed on VL53L0x.
Features
- Measure absolute distances up to 2m
- Measurement accuracy ±3%
- The wavelength of laser: 940nm
- Program Platform: Arduino, UIFlow
- Two Lego-compatible holes
Includes
- 1x ToF Unit
- 1x Grove Cable
Applications
- Laser Ranging
- 3D structured light imaging(3D sensing)
- Camera assist (ultra fast autofocus and depth of field)
Specifications
| Resources | Parameters |
|---|---|
| Sensor | VL53L0X |
| Measuring distance | 3-200cm |
| Measurement accuracy | ±3% |
| Product Size | 32.0 x 24.0 x 8.0mm |
| Product Weight | 4.1g |
| Package Size | 138.0 x 93.0 x 9.0mm |
| Gross Weight | 9.4g |
Learn
Measurement Range
Under normal conditions, the maximum testing distance is 120 cm. If the testing distance needs to reach 200 cm, the Long Range mode must be enabled, and the environment must be dark without infrared interference.
Related Link
Schematics
Easyloader
ソフトウェア
Arduino
UIFlow
How to use Unit tof and related API instructions in the UiFlow1
How to use Unit tof and related API instructions in the UiFlow2
動画
- Unit TOF Example
Version comparison
| Product Compare | Unit-ToF4M  | Unit-TOF |
|---|---|---|
| Chip | VL53L1X | VL53L0X |
| Maximum Range | 4 meters | 2 meters |
| Typical Accuracy | ±1-2% | ±3% |
| Field of View (FoV) | 27° (adjustable) | 25° |
| Adjustable Field of View | YES | NO |