distance is 0

[PengGYing]

#include <Arduino.h>
#include <Wire.h>
#include <vl53l7cx_class.h>

#define I2C Wire

#define LPN_PIN A3
#define I2C_RST_PIN A1
#define PWREN_PIN A0
#define ARRAY_SIZE (VL53L7CX_RESOLUTION_8X8 * VL53L7CX_NB_TARGET_PER_ZONE)

VL53L7CX sensor_vl53l7cx_top(&I2C, LPN_PIN, I2C_RST_PIN);

uint16_t distanceArray[ARRAY_SIZE];

void setup() {
  if (PWREN_PIN >= 0) {
    pinMode(PWREN_PIN, OUTPUT);
    digitalWrite(PWREN_PIN, HIGH);
    delay(10);
  }
  Serial.begin(115200);
  I2C.begin();
  sensor_vl53l7cx_top.vl53l7cx_set_resolution(VL53L7CX_RESOLUTION_8X8);
  sensor_vl53l7cx_top.begin();
  sensor_vl53l7cx_top.init_sensor();
  sensor_vl53l7cx_top.vl53l7cx_start_ranging();
}

void loop() {
  VL53L7CX_ResultsData Results;
  uint8_t NewDataReady = 0;
  uint8_t status;

  do
  {
    status = sensor_vl53l7cx_top.vl53l7cx_check_data_ready(&NewDataReady);
  } while (!NewDataReady);

  if ((!status) && (NewDataReady != 0))
  {
    status = sensor_vl53l7cx_top.vl53l7cx_get_ranging_data(&Results);
    for(int i=0; i< ARRAY_SIZE; i++){
      distanceArray[i] = Results.distance_mm[i];
      }
    Serial.println("Distance Array:");
    for(int i=0; i < ARRAY_SIZE; i++){
      Serial.print(distanceArray[i]);
      Serial.print(" mm\t");
      if((i+1)%8==0){
        Serial.println();
        }
      }
    Serial.println();
  }
  delay(1000);
}

Distance Array:
245 mm	182 mm	217 mm	159 mm	491 mm	188 mm	139 mm	98 mm	
373 mm	780 mm	88 mm	76 mm	162 mm	120 mm	62 mm	50 mm	
0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	
0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	
0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	
0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	
0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	
0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	0 mm	

This my code and print, But the output doesn't look right,Can you give me some advice.

[fpistm]

/cc @cparata

[cparata]

Hello @PengGYing ,
what is your hardware setup? Which boards are you using?
Best Regards,
Carlo

[PengGYing]

my hardware is Seeed Studio XIAO nRF52840 (Sense)

[PengGYing]

�[2H53L7A1 Simple Ranging demo application
--------------------------------------

Use the following keys to control application
 'r' : change resolution
 's' : enable signal and ambient
 'c' : clear screen

Cell Format :

 �[38;5;10m       Distance [mm]�[0m :               Status


 ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- -----------------
|                 |                 |                 |                 |                 |                 |                 |                 |
|     X  :      X |     X  :      X |     X  :      X |     X  :      X |     X  :      X |     X  :      X |     X  :      X |     X  :      X |
 ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- -----------------
|                 |                 |                 |                 |                 |                 |                 |                 |
|     X  :      X |     X  :      X |     X  :      X |     X  :      X |     X  :      X |     X  :      X |     X  :      X |     X  :      X |
 ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- -----------------
|                 |                 |                 |                 |                 |                 |                 |                 |
|     X  :      X |     X  :      X |     X  :      X |     X  :      X |     X  :      X |     X  :      X |     X  :      X | �[38;5;10m  153�[0m  :      5 |
 ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- -----------------
|                 |                 |                 |                 |                 |                 |                 |                 |
|     X  :      X |     X  :      X | �[38;5;10m  706�[0m  :      5 | �[38;5;10m  778�[0m  :      5 | �[38;5;10m  911�[0m  :      5 |     X  :      X |     X  :      X | �[38;5;10m  151�[0m  :      5 |
 ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- -----------------
|                 |                 |                 |                 |                 |                 |                 |                 |
|     X  :      X |     X  :      X | �[38;5;10m  640�[0m  :      5 | �[38;5;10m  713�[0m  :      5 | �[38;5;10m  788�[0m  :      5 |     X  :      X |     X  :      X |     X  :      X |
 ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- -----------------
|                 |                 |                 |                 |                 |                 |                 |                 |
| �[38;5;10m   90�[0m  :      5 |     X  :      X | �[38;5;10m  597�[0m  :      5 | �[38;5;10m  651�[0m  :      5 | �[38;5;10m  728�[0m  :      5 |     X  :      X |     X  :      X | �[38;5;10m  122�[0m  :      5 |
 ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- -----------------
|                 |                 |                 |                 |                 |                 |                 |                 |
| �[38;5;10m   85�[0m  :      5 | �[38;5;10m   89�[0m  :      5 |     X  :      X |     X  :      X |     X  :      X |     X  :      X |     X  :      X | �[38;5;10m   70�[0m  :      5 |
 ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- -----------------
|                 |                 |                 |                 |                 |                 |                 |                 |
| �[38;5;10m   71�[0m  :      5 | �[38;5;10m   74�[0m  :      5 | �[38;5;10m   84�[0m  :      5 |     X  :      X |     X  :      X |     X  :      X | �[38;5;10m   64�[0m  :      5 | �[38;5;10m   44�[0m  :      5 |
 ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- ----------------- -----------------

This is the result of running VL53L7CX HelloWorld.ino

[cparata]

And what is the board with the VL53L7CX? Is it on board to Seeed Studio XIAO?

[PengGYing]

yes

[PengGYing]

Seeed Studio XIAO + vl53l7cx

[cparata]

How the VL53L7CX is connected to the MCU? Can you share your hardware setup?