A new version of the VL53L1 is also available: VL53L1CB. It allows measurements at 60Hz up to 8 meters away. There is also the VL53L5CX witch give the opportunity to capture 8x8 pixels at 60Hz!
However, I had already bought several VL53L1CX, so I did my tests with this version (50Hz). So I decided to design a platform allowing to run 4 TOF in parallel in order to increase the performances (and thus the possibilities!) of my detection.
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Here is the map I used to make these measurements. It includes 8 connection PINs.
- VCC
- SCK
- SDA
- XSHUT sensor 1
- XSHUT sensor 2
- XSHUT sensor 3
- XSHUT sensor 4
- GND
For a distance measurement, I made tests with a Teensy 3.6 card by timing 1000 measurements:
- 1 sensor: 18 seconds/1000 measure or 50Hz
- 2 sensors : 90Hz
- 4 sensors : 160Hz
This adapter card allows me to create a 64 pixels TOF camera at 2.5Hz if I tilt the sensors slightly (Fov 27°). But I can also use each sensor in the same direction and multiply the speed of motion detection.
Using the new VL53L1CB version, we should be able to reach a detection of 200Hz or a camera of 16 pixels at 12.5Hz
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