VL53L1X with atmega328

[manjesh n]

Posted on May 31, 2018 at 12:07

Hi,

I have project for obstacle distance measurement where VL53L1X sensor is used and the microcontroller is Atmeag 328. I have downloaded API reference code. But there are lot of files which is really confusing me. I have used single sensor in my project. I have written software I2C to read basic register information from VL53L1X. I am able read the following registers properly.

Model ID - 0x010F - Am reading 0xEA which is correct

Model Type - 0x0110 - Am reading 0xCC which is correct

Mask Revision - 0x0111 - Am reading 0x10 which is correct

But to measure the distance there are lot of API's. It would be really helpful if i get any sample code or example code with atmel Microcontroller.

Kindly help me.

[John E KVAM]

Posted on June 07, 2018 at 01:00

You are most of the way there. Don't quit now. There is a bit of code called X-Cube-vl53l1x. It's available at:

http://www.st.com/content/st_com/en/products/ecosystems/stm32-open-development-environment/stm32cube-expansion-software/stm32-ode-sense-sw/x-cube-53l1a1.html

With the code you have written, you are all set. Copy the calls from the main.c and it will just work for you.

And this code makes a pretty handy reference - even if you don't use an ST processor.

For example:

 status = VL53L1_WaitDeviceBooted(Dev);

 status += VL53L1_DataInit(Dev);

 status += VL53L1_StaticInit(Dev);

 status += VL53L1_SetPresetMode(Dev,VL53L1_PRESETMODE_LITE_RANGING);

 status += VL53L1_SetDistanceMode(Dev, VL53L1_DISTANCEMODE_MEDIUM);

 status += VL53L1_SetMeasurementTimingBudgetMicroSeconds(Dev,20000);

 //status += VL53L1_SetInterMeasurementPeriodMilliSeconds(Dev, 100);

 status += VL53L1_GetMeasurementTimingBudgetMicroSeconds(Dev, &pMeasurementTimingBudgetMicroSeconds);

 printf('Timing Budget = %d\n', pMeasurementTimingBudgetMicroSeconds);

status += VL53L1_StartMeasurement(Dev);

 if(status){

  printf('YOU DID SOMETHING WRONG \n');

  while(1);

 } 

 if (isInterrupt){

  do // interrupt mode

  {

   __WFI();

   if(IntCount !=0 ){

    IntCount=0;

    status = VL53L1_GetRangingMeasurementData(Dev, &RangingData);

    if(status==0){

     printf('%d,%d,%.2f,%.2f,%d\n', RangingData.RangeStatus,RangingData.RangeMilliMeter,

      RangingData.SignalRateRtnMegaCps/65536.0,RangingData.AmbientRateRtnMegaCps/65336.0,HAL_GetTick());

    }

    status = VL53L1_ClearInterruptAndStartMeasurement(Dev);

   }

  }

  while(1);

[manjesh n]

Posted on June 08, 2018 at 11:27

Thank you john kvam

it was useful