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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Resolved! VL53L1X and VL53L4CD detection

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) b...

will3 by Associate III
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  • 2 replies
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Resolved! ToF sensor with highest sampling frequency

In the search for a distance senor which can sample at highest rate. Given the constraint of a measurement range <1m and accuracy of relative distance changes in the low mm range. Ideally we could get a sampling rate of 1kHz.The VL53L4 sensors would ...

Tom_pm by Associate II
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  • 1 replies
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Resolved! VL53L1X when to trust readings?

Hi,   typedef struct { uint8_t Status; /*!< ResultStatus */ uint16_t Distance; /*!< ResultDistance */ uint16_t Ambient; /*!< ResultAmbient */ uint16_t SigPerSPAD;/*!< ResultSignalPerSPAD */ uint16_t NumSPADs; /*!< ResultNumSPADs */ } VL53L1X_Result_t...

will3 by Associate III
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  • 3 replies
  • 2 kudos

Resolved! Sometimes VL6180 is not recognized the object (feat. drift)

Hi ST team,I'm developing the device which is using VL6180. Sometimes ToF(VL6180) is not recognized the object. And sometimes it is not recognized first and then becomes recognized again. But I don't know why this happened. I'm trying to find the rea...

Kyle3 by Associate
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  • 1 replies
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Resolved! VL53L7CX fails at init

Hello,I am trying to use the VL53L7CX on a robotic project with the provided driver, but it fails at Init.The sensor is detected as alive ("isAlive" is true), the I2C speed is set to 1Mhz (even if I tried lower speeds as well), and it fails exacly at...

Resolved! VL53L0X full register map & documentation

Does anyone have access to documentation with an actual list of registers with addresses and functionality and a full description of the register bits for the VL53L0X?  All I have been able to find is documentation that refers to the questionable API...

Resolved! VL53L8CX data fakes after some time

I am using the VL53L8CX sensor to measure distances, and I am getting correct values. After some time, the data starts to be sometimes incorrect, while slowly increasing the ratio of incorrect vs correct, until eventually all of the readings are inco...

Voklaif by Associate II
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  • 2 replies
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Resolved! VL53L8CX not accurate distance

I’ve been using the "vl53l8cx" sensor to measure distances through I2C, and I noticed that when I measure distances (between 10cm and 50cm), the values reported by the sensor are consistently half of the actual distance. For example, when the actual ...

Resolved! VL53L5CX Initialization Timing (vl53l5cx_api)

Currently I'm using some of the vl53l5cx api functions along with some custom code. I plan to have multiple ToFs used and noted, via o-scope, that the initialization function vl53l5cx_init (looks to be blocking code?? correct me if I'm wrong) takes a...

JahKMC by Associate III
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  • 4 replies
  • 1 kudos