Values obtained with range status 2 and 7 are accurate or not?

[Akansha]

Hi,

I am working on VL53L1X Sensor for designing obstacle detection sensor. When i am testing my sensor's range in office environment, it is showing range status 2 and 7 so frequently even at Timing Budget 140ms.

Distance between target and sensor is only 2m still it's showing fluctuations around 100cm.

Please tell me weather i should consider values obtained with range status 2 and 7 or not?

Regards and how to reduce fluctuations obtained.

Akansha

[John E KVAM]

Both are warnings. You can choose to use them.

The user guide defines the errors as:

2 VL53L1_RANGESTATUS_SIGNAL_FAIL Raised if Signal value is below the internal defined threshold.

7 VL53L1_RANGESTATUS_WRAP_TARGET_FAIL Wrapped target, not matching phases.

So 2 - the number of photon are too few to get a good value. Its a warning telling you the result will not be very accurate.

7- A wrap fail indicates the sensor thinks the target if so far away that it appears near. (Google Radar Aliasing. It's interesting.) But you can get the 7 error with motion as well.

Again a warning. You can choose to use the range or not.