Interference between ToF sensors (VL53L5CX)

[WDela.1]

I am wondering how to extend the FOV of the 8x8 tof sensor. I think on mounting two or three VL53L5CX in a horizontal array. However, since all sensors operate at 940nm, I should place them far enough to avoid that the reflection on one is detected by other. Is that correct? If so, is there any parameter (like modulation) I could use to just place them together and expand the FOV, and consequently the zones?

Thanks

[John E KVAM]

These sensors have a well defined Field of View, so if you want to use several to create a greater FoV then you have to tilt them 22 1/2 degrees. I had good luck putting 3 of them on a flex mounted vertically. Then I stuck the flex on a bit of plactic that had a 22.5 degree ramp on one side a flat spot and a 22.5 degree ramp down the other side.

The power, ground and I2c clock and data just run to all 3 chips. Then you need a separate LPn pin to each (which is really the enable pin.) I also ran a interrupt line to each.

The physical separation you get by tilting them is the only thing you need to do. (It's also the only thing you can do.)

• john