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will3
Associate III
January 20, 2025
Solved

VL53L1X and VL53L4CD detection

  • January 20, 2025
  • 1 reply
  • 1072 views

We are beginning to migrate from the L1 to the L4. 

Wondering if there is a way to auto-detect which sensor is on the board? I would like to build one fw version which abstracts away which sensor is in use (albeit taking advantage of diff features) but all I see is SWVersion API which only returns version not type.  Both appear to be same address on I2C for us.

Thanks,

Will

 

Best answer by John E KVAM

Both those chips should have a model ID at the same location

#define VL53L4CD_IDENTIFICATION__MODEL_ID                            0x010F
and
#define VL53L1_IDENTIFICATION__MODEL_ID                     0x010F
 
VL53L1X_ERROR VL53L1X_GetSensorId(VL53L1_Dev_t dev, uint16_t *sensorId)
{
	VL53L1X_ERROR status = 0;
	uint16_t tmp = 0;

	status = VL53L1_RdWord(&dev, VL53L1_IDENTIFICATION__MODEL_ID, &tmp);
	*sensorId = tmp;
	return status;
}

I can't remember which one is which, but it should be easy enough to test. 

- john

1 reply

John E KVAM
John E KVAMAnswer
ST Employee
January 20, 2025

Both those chips should have a model ID at the same location

#define VL53L4CD_IDENTIFICATION__MODEL_ID                            0x010F
and
#define VL53L1_IDENTIFICATION__MODEL_ID                     0x010F
 
VL53L1X_ERROR VL53L1X_GetSensorId(VL53L1_Dev_t dev, uint16_t *sensorId)
{
	VL53L1X_ERROR status = 0;
	uint16_t tmp = 0;

	status = VL53L1_RdWord(&dev, VL53L1_IDENTIFICATION__MODEL_ID, &tmp);
	*sensorId = tmp;
	return status;
}

I can't remember which one is which, but it should be easy enough to test. 

- john

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W
will3Author
Associate III
January 20, 2025

Perfect! Thank you!

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