VL53L1 Nucleo Pack: Can one change the ROI in the GUI without resetting all the calibration values?

[UK Engineer]

I am using the VL53L1 Nucleo Pac with the Flight Sense GUI supplied by ST. I am trying to evaluate different ROI settings but everytime I change the ROI, all the calibration settings seem to be cleared. Can one change the ROI in the GUI without resetting all the calibration values?

[John E KVAM]

When using the UltraLite Driver (STSW_IMG009), I had to change the offset as I changed the ROI. As I have messing with the ROI in my code, nothing is done automatically.

With the full driver (STSW_IMG007), it was meant to do this automatically.

When set, the offset was something like:

INNER_OFFSET=23

OUTER_OFFSET=48

And depending on what the ROI was it would choose a number between the inner and outer offset values.

If you are finding that it's not accurate enough, then the perhaps you can apply a little correction factor based on your testing.

Go with the automatic, so you won't have to stop the chip - but add or subtract a bit based on testing you have done.

• john