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

What are the purpose of the I2C functions?

Hi,For a project, I am trying to interface the VL53L1 sensor with the MSP432P401R development board using the API from ST. I'm writing the functions for writing and reading all the bits using I2C, and I was wondering what was the explicit purpose for...

LChan.4 by Associate
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VL53L0X_GetReferenceSpads() function retuns 0 as Spad count and PerformRefSpadManagement fails with Reference Spad Init Error. Why?

After static init in the code:if(distOpStatus == VL53L0X_ERROR_NONE) { Print("Getting ReferenceSpads: "); distOpStatus = VL53L0X_GetReferenceSpads(pDistanceSensor, &refSpadCount, &isApertureSpads); }   if(distOpStatus == VL53L0X_ERROR_NONE) { ...

mgulsoy by Associate II
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Resolved! VL53L1X hanging on first wait for data

I have a VL53L1X connected to a multi-slave I2C bus hosted by a broadcom bcm2835 running linux (4.19). I have configured the `vl53l1_platform.c` from the api ("stsw-img007") to use the <linux/i2c-dev.h> interface with tracing and see bi-direction com...

SK.61 by Associate II
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Resolved! VL53L1X - Autonomous low-power mode

If anyone could help me point to location in the API where I could implment "Autonomous low-power mode".And on "Autonomous low-power mode" what is the expected current draw?for a battery operated project what should I tweak in the API to get more pow...

JPere.3 by Associate II
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Resolved! Vl53l1X GPIO1 Interrupt

Hi there,My application is battery operated, so I’m trying to wake up atmega328p from deep sleep from an interrupt though the GPIO pin from the sensor. I'm using Thresholds, "inside window". If any object ditected inside the range, to fire a trigger ...

JPere.3 by Associate II
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  • 7 replies
  • 1 kudos

Can multiple VL53L1X be operated in parallel?

Sensors are close to each other (let's say, 30cm). The range is the medium-long one. Their FOV may overlap in production. I'm using ULD. Does this means that I have to VL53L1X_StartRanging and then wait for its result before calling VL53L1X_StartRan...

LDi C.1 by Associate
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Multiple VL53L1X interrupt mode

For my project, I need to use 2 Vl53L1X on the same I2C bus. The setup is good and i can use them sequentially. But I would like use them in interrupt mode (for have a maximum speed).In short/interrupt mode with one sensor i have 20ms time beetween 2...

Talex.1 by Associate II
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VL53L1X-SATEL / no blocking function

I connect a vl53l1x-satel to a stm32wb55rg6 with 4 essantial pins (sda, sdl, gnd, vdd). I have a problem to wait for a result. With de function VL53L1_WaitMeasurementDataReady() i haven't problems but for my project I must not use a blocking function...

Talex.1 by Associate II
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