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! VL53L1X temperature effects

We placed two VL53L1X sensors at 18.6" in our temperature chamber. Over a 50C swing we saw up to 1.15" of variability. In the images bellow the chamber temperature stabilized around 30 minutes. The target was a large 24x24 sheet of white nylon 0.5" t...

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Resolved! VL53L8CX Platform Integration with ChibiOS

Hi, I am trying to integrate the VL53L8CX ULD driver with a project that utilizes chibios on an F4 based board.The TOF sensor firmware seems to be about 86KB. For a transfer of this size, the device fails to setup and use DMA-safe bouncebuffers. I ca...

Resolved! VL53L1X Sensor failures?

#define RANGE_ERROR_DISTANCE_BELOW_DETECTION_THRESHOLD 0x03#define RANGE_ERROR_OTHER 0xFFHi ST,Some of our production devices are receiving the above errors.  Can someone help me with understanding what might cause these errors?Thanks,Will 

will3 by Associate III
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  • 1 replies
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Resolved! VL53L4CX which distance mode should I choose?

There are three modes: LONG, MEDIUM, and SHORT. The names suggest that LONG allows measuring the greatest distances. In document UM2923 (section 5.2), there is information that the maximum distance can be achieved with the MEDIUM setting. What settin...

Andrew12 by Associate II
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  • 9 replies
  • 2 kudos

STM X-Nucleo-53L7A1 with Nucleo-F401RE does not work

Hi everyone, I have STM Nucleo-F401RE and X-Nucleo-53L7A1. I downloaded the SDK en.X-TOF1. When I check the pin configuration, I saw that X-Nucleo-53L7A1 I2C_RST (PB3) pin is SWO pin on F401RE board at the same time. I needed to delete PB3 pin config...

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Ali42 by Associate
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  • 1 replies
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Resolved! VL53L3CX GUI I2C transaction recording, how?

I have an STM32 Nucleo F401RE plus X-Nucleo-53L3A2 board.IDE and the rest of the toolchain installed, including the STSW-IMG016 P-NUCLEO-53L3A2 pack graphical user interface.The data brief of the GUI states "I2C transaction recording" which is of my ...

Tvan .13 by Associate III
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  • 5 replies
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Resolved! How manage errors while Init VL53L1X

I'm using the VL53L1X ULD API to drive 4 sensors and, sometimes, the function VL53L1X_SensorInit returns error VL53L1_ERROR_CONTROL_INTERFACE while initializing the third or four sensor (the first two are always initialized correctly).The sensor boot...

nico23 by Senior II
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  • 7 replies
  • 2 kudos

Resolved! Best Sensor for Close Readings

We currently use the VL53L1x and have struggled with precise measurements to close objects. Our application needs precise measurements between 1mm and 400mm.  Reviewing the available sensors ST has it appears to us that the VL53L4CD is the best possi...

will3 by Associate III
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  • 5 replies
  • 0 kudos