VL53L0X OffSet Calibration example Does anyone have an VL53L0X OffSet Calibration example they would like to share please. An Arduino sketch would be nice. I have looked at the API document but it is just not clear how you go about writing this app

[Walid ZRELLI]

Hello @Iknig.1​ ,

Take a look at the following example provided under the WB Firmware Package.

• Path: Projects\STM32WB5MM-DK\Examples\BSP

This may help you.

BeST Regards,

Walid

[Anne BIGOT]

Hello

The code below is the calibration code for the L1CX. It will work the same way on the L0.

int8_t VL53L1X_CalibrateOffset(uint16_t dev, uint16_t TargetDistInMm, int16_t *offset)

{

uint8_t i, tmp;

int16_t AverageDistance = 0;

uint16_t distance;

VL53L1X_ERROR status = 0;

status |= VL53L1_WrWord(dev, ALGO__PART_TO_PART_RANGE_OFFSET_MM, 0x0);

status |= VL53L1_WrWord(dev, MM_CONFIG__INNER_OFFSET_MM, 0x0);

status |= VL53L1_WrWord(dev, MM_CONFIG__OUTER_OFFSET_MM, 0x0);

status |= VL53L1X_StartRanging(dev); /* Enable VL53L1X sensor */

for (i = 0; i < 50; i++) {

tmp = 0;

while (tmp == 0){

status |= VL53L1X_CheckForDataReady(dev, &tmp);

}

status |= VL53L1X_GetDistance(dev, &distance);

status |= VL53L1X_ClearInterrupt(dev);

AverageDistance = AverageDistance + distance;

}

status |= VL53L1X_StopRanging(dev);

AverageDistance = AverageDistance / 50;

*offset = TargetDistInMm - AverageDistance;

status |= VL53L1_WrWord(dev, ALGO__PART_TO_PART_RANGE_OFFSET_MM, *offset*4);

return status;

}

Duplicate that and it will work fine.

There is some reference code in the L0 library from st.com : VL53L0X_perform_offset_calibration

Anne