Can we implement a multi-line lidar by changing the ROI of the SPAD array?

[RXu.1]

We use vl53l1x, a single-line lidar, would like to convert it to a multi-line one in order to get multiple ranging information at the same point in the 3D-space for the UAV.

[John E KVAM]

Sure you can. using a 4x4 ROI, there are 13 regions across and 13 down. So you could do 169 different regions. But if you did 20ms ranging on each, that would take more than 3 seconds! So unless you are guaranteed a static target, it won't work well.

using the 2D lidar example

STSW-IMG017

2D LIDAR using multiple VL53L1X Time-of-Flight long distance ranging sensors

as a base can get you started.

Using the UltraLite driver, remember you have to set the 'next' ROI while the current one is running.

If you use the VL53L1CB the changing of the ROIs is done for you.

STSW-IMG019

API for VL53L1CB

The VL53L1X (and the UL driver) is easier. The L1CD can range farther due to it's more complex software.

Your choice.