Imaging (sensors)

Discuss applications using ST FlightSense Time-of-Flight sensors, ST BrightSense CMOS image sensors, and ambiant light sensors (ALS) technology. Find answers to your questions on troubleshooting, data accuracy, optimizing communication and more.

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Forum Posts

Resolved! VL53L4CD - readings dependent on target

HiI have been messing around with VL53L4CD for the last few months, and I recently realized that my readings differ significantly, depending on the target color/texture.Here is my setup: The sensor is set on its side, and directly in front of it, at ...

Resolved! VL53L0X offset/xtalk after temperature calibration

Hello, I have a question about the temperature calibration for the VL53L0X Time-of-Flight sensor.The UM2039 manual states the following:> [Temperature calibration] has only to be done before offset and cross-talk calibrations, after Reference SPADs  ...

Resolved! Unstable range results VL53L7CX

This is a continuation from this post, where I erroneously marked the post as solved: https://community.st.com/t5/imaging-sensors/vl53l7cx-distance-data-stratification/td-p/866073Unfortunately I'm still experiencing the issue where range data continu...

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jairo1 by Associate II
  • 542 Views
  • 4 replies
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Resolved! VL53L4CX multiple objects at longer range?

HeyI've got great success with the VL53L4CX at sorter ranges, but at longer ranges i seem to get two objects. One closeby between 10 and 30mm away, and one at the distance that it should be.I've done calibration and i cant' get this to go away. I'm a...

cyclops by Associate III
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  • 2 replies
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Resolved! Drivers for VD55G0 sensor for STM32N6

Dear all,I'm looking for the driver for the VD55G0 camera sensor compatible with the STM32N657 MCU. According to the camera sensor's driver product page (STSW-IMG505) a driver should be available for the N6 (the N6 is mentioned several times as being...

asdfasdf by Associate III
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  • 4 replies
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Resolved! Calibration box guidelines?

HI,I'm using the VL53L4CX and in an enclosure and thus have a cover glass over the sensor.i've been doing some simple calibration, but have noticed that this requires a strict procedure and preferably a good setup to perform the calibration.I therefo...

cyclops by Associate III
  • 379 Views
  • 3 replies
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NUCLEO-N657X0-Q Nucleo board with STEVAL-55G1MBI1

I am using the above 2 EVAL boards from ST. I am trying to get the video pipeline going to the point that I do receive the images in memory and the appropriate frame based interrupts are triggered to verify. I have tooled my code for minimal applicat...

gmali9 by Associate
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  • 1 replies
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Resolved! VL53L4CX_RANGESTATUS_OUTOFBOUNDS_FAIL at 1.8m?

Hi,It seems that some of my measurements (in a green jojo tank) are resulting in a `VL53L4CX_RANGESTATUS_OUTOFBOUNDS_FAIL` error.The measurement itself seems to still be correct as the tank is empty, and the result is around 1800mm.I check the docume...

cyclops by Associate III
  • 509 Views
  • 8 replies
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Resolved! VL53L4CD ULD : divide by 0 bug in VL53L4CD_GetResult

I am using VL53L4CX with VL53L4CD ULD driver v2.2.2, due to an I2C issue on my side the VL53L4CD_RdWord fails and the number_of_spad variable is set to 0. The divide by zero happen at the very end of VL53L4CD_GetResult.I checked the function in ULD v...

julesr by Associate
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  • 4 replies
  • 1 kudos

Resolved! VL53L4CX RefSPAD caliberation - no target?

Hi,i'm playing around with the VL53L4CX after putting it on my own pcb (yay).The user guide states that for the SPAD caliberation, NO target should be placed. The crosstalk requires a 600mm target.Do i understand correctly that the SPAD caliberation ...

cyclops by Associate III
  • 4225 Views
  • 15 replies
  • 2 kudos