Imaging (sensors)

Hello everyone, I've a problem with the communication I2C. I've generated the I2C communication base code with STCubeMX for the STM32F746G discovery board. And I got an error at I2C_WaitOnTXISFlagUntilTimeout(). Because NACK is detected. I've also tested the sensor on a Nucleo L476 with the example program from the lite API of the sensor and it works. Both programs are similar and I cannot find out why I have NACK.I've test the I2C communication with an other sensor (MPU-6050 ) and it's works Thank you for your Help

Dear All,I´d really apreciate if you could give me some guidance about how to use the VL53L0X API in Arduino as it is my first time that I face it. More specifically, how I should "install" the API software before playing with the examples included in the API software?Thanks a lot!

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on pg 22 per DocID029105 Rev 1 for Long Rangewe are able to setsignal rate to 0.1mcpsdefault timing budget is 33ms so no change thereVCSEL pre range period to 18VCSEL final range to 14but cannot do the final recommended setting configuration of setting Sigma to 60I know the attached isn't a validated library but it has worked for us and was hoping for assistance to expand from it for long range.

Hello, we are planning to assess VL53L0X to be used inside a polycarbonate casing, to measure the distance of an object, for e.g. a car parked over it. Can the IR penetrate through the plastic casing?RegardsArif

Read add 0x0050,get 16bits data,How to Calculate the data to LUX.someone shows the process step by step?

Hy,I need to design a power consumption optimized (battery based) system using the VL53L0x / VL53L1. I cannot find the current consumption vs voltage in the datasheets. I can either use battery voltage directly (3.6V) or use a high efficiency DCDC (i.e. TI TPS62730) and generate 1.9V.What current do I expect for HW standby and Active ranging at 3.6V and 1.9V?RegardsHarald

So I am working with a VL53L1X sensor on a LPC804 from NXP. I am using the full API (STSW_img007). I made a simple test to see if I could get the I2C functions running allright, so I tried to read out the model ID. When I was successful, I wanted to move on to see if I could make some measurements and get the data out. So I plugged in some code I found in an example to get started, but suddenly I did not have enough memory from my code. I can see that the code jumpes from around 12KB to a whooping 38KB just by implementing these test functions. So now I cant go further, because the code is too large. It says on ST.com that the full API would take up around 9KB, so I have no idea why this is happening. Does anyone know why it takes up so much memory and what I can do about it? The two pictures show my test code for I2C and my code for range measurement.

Hey there,I just got the sensor working on my raspberry using the library I found online. The sensor can now measure the distance.Now for my schoolproject I need to setup 2 roi regions on the VL53L1x. I have searched the internet and cant find anything how to do this on a raspberry.Is someone here familiar with the pi, the VL53L1x and the setup of an roi. I need an example code of how to setup these roi’s to count people like ST did in their youtube videoThx in advance!

Hi at allIm using the STSW-IMG005 API.The function 'VL53L0X_set_reference_spads(...)' gives an error -50.In another thread i read this could be ignored.All other functions after that worked well.But the function 'VL53L0X_PerformSingleRangingMeasurement(..)'allways gives the "no update" status. What could be wrong when this status is received and how could I resolve it?

Hello,I have a question regarding the calibration flow. I have narrowed the RoI to my needs and adjusted the timing/intermeasurement budget and I am using short distance mode.My question now is whether I have to use the same settings when calibrating the sensor, or whether the calibration has to be done without these settings. Cheers, Daniel

I want to add this sensor to stm32f1

I need help with the vl53l0x sensor and stm32f103 board if anyone can help me with programming or any library.

Hi,We are using VL53L5 TOF sensor for our development, Unit for signal rate is MCPS (mega counts per seconds). What exactly is it counting? Is it measure of intensity of signal received? Does it mean that, Higher the signal rate, higher is intensity of received signal. Does higher signal rate means good confidence is reported range. Thanks,Satya

To use the VL53L1X with a 3V3 supply, I will have to select 2V8 mode.The default mode is 1V8 mode. The selection wil be done in 1V8 mode. Apperently I2C will function correct in 1V8 mode with a 3V3 supply.What is the difference between 1V8 and 2V8 mode?

The typical IOVDD (2V8 mode) and AVDD of the VL53L1X may be 3V3 according the datasheet.In ST applications (for example the X-NUCLEO-53L1A1) a levelshifter is used to interface the 2V8 powered sensor with the 3V3 powered MCU.I want to use the VL53L1X in a application with a 3v3 powerd MCU and thus I2c interface pulled up to 3V3. Can I power IOVDD and AVDD of the sensor with a 3V3 supply?

Hello everyone,I was searching the VL53L1X's Full API and I came across with a function in the "api_calibration" class called " VL53L1_run_spad_rate_map". My question is what quantity does the “SPAD rate�? indicate? And what task does this function exactly do? Also, one of the arguments for that function is ssc_config_timeout_us which I’m not sure what value I should pick for that.Thanks,Adrik

We are putting the VL53L0X in a device with a tinted lens cover. Example shown bellow. I wanted to know about the calibration process during manufacturing that is recommended in the Application note. Is the calibration different from each individual unit? I am thinking of getting the calibration numbers here in the lab and then using that info to set all the devices during manufacturing. Basically we don't require very accurate reading as long as it reads within a certain range.

request for member 'CurrentParameters' in something not a structure or unionrequest for member 'LLData' in something not a structure or unionrequest for member 'PalState' in something not a structure or union i am using nrf52832 and vl53l1x sensor

I have Nucleo-F446RE and  VL53L1x satel. I have connected pins as followSCL - D15SDA-D14INT-A2GND-GNDVDD-3v3When I open GUI software It says Sensor not detected.

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I am using the vl53l0x tof sensor in one of my products but I am currently experiencing a huge amount of fallout on this product.On a batch of 30, I had 10 broken VLX53l0x TOF sensors after soldering.What occured, the sensor started to pull down itself automatically on the reset pin.My PCB assembler told he used the recommended solder profile for placement of this part.All of this is done in an ESD safe environment.The shock precaution, the PCBs that worked I put on a wafer applying 70G of force to them trying to get them to fail but all of the 20 leftover PCB  keeps working. We also think the hasn't been any of the components reels that had been dropped on the floor.Moisture sensitivity, all of the sensor were in between&

Can I use the GPIO1 from the first sensor on the I2C bus to control the XSHUT pin on the second sensor etc.Here is the plan.Assume that I do not use the GPIO1 pins to interrupt my microcontroller. I will use the API to check it there is new data. XSHUT on sensor1 is hardwired High. Sensor1 is in SW_Standby.On sensor1 GPIO1 is High until a measurement is ready. It is connected thru an inverting transistor to the XSHUT on sensor2 so sensor2 is in HW_standby. All the following sensors should also be in HW_standby also.Anything wrong yet?I use the driver to send a command to change the I2C address. Since only the first sensor is in SW_standby only it will accept the new I2C address.Now for the magic that I need from you folks!Since GPIO stand for General Purpose Input/Output I'm hoping that there is some way to use it as General Purpose I/O and Set the GPIO on sensor1 low thus

I have the X-NUCLEO-6180XA1 board working with an STM32G071 Nucleo board. However the range reading doesn't seem to change when the range to the object changes. If there is nothing in range, I correctly read 0x72 from the range status register, but if something is in range, I seem to always get a range around 0x09 to 0x0D, regardless of if the target is moved closer or further.Is there some setting I might be missing? I'm initializing the registers as follows:static const vl6180x_reg_value_t init_regs[] = { /* REGISTER_TUNING_SR03_270514_CustomerView.txt */ {0x0207, 0x01}, {0x0208, 0x01}, {0x0096, 0x00}, {0x0097, 0xfd}, {0x00e3, 0x01}, {0x00e4, 0x03}, {0x00e5, 0x02}, {0x00e6, 0x01}, {0x00e7, 0x03}, {0x00f5, 0x02}, {0x00d9, 0x05}, {0x00db, 0xce}, {0x00dc, 0x03}, {0x00dd, 0xf8}, {0x009f, 0x00}, {0x00a3, 0x3c}, {0x00b7, 0x00},

Rev 7 of the VL6180X datasheet shows the SYSALS__INTEGRATION_PERIOD register at 0x040, however Version 2 of AN4545 changed the address of what presumably is the same register from 0x040 to 0x041. Which is it?Thanks.