Laser distance measurement with M5Stack Core2 ESP32 and VL53L0X with Arduino (advanced)

Project Video
Project Details

Learn how to setup and prepare your Arduino to work with M5Stack Core 2, wire the VL53L0x 200cm laser distance sensor and measure distance in cm, mm, or inch.
We learn also to prepare Arduino IDe software to work Core2 ESP32
In this Advanced code, we have 2 touch switch for cm, mm and the third once is for power off using touch. Basic Code is here

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The link to use in the "preferences" of Arduino IDE
https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/arduino/package_m5stack_index.json Watch video for instructions.

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Project Code


/*
 * file: M5Stack_VL53L0X_advanced
 Measure distance using VL53L0X Laser Distance Sensor and dispaly on M5Stack Core 2 ESP3D IoT board
 * Written by Ahmad Shamshiri on April 03, 2021 in Ontario, Canada
 www.Robojax.com youTube http://youTube.com/robojaxTV
 
 using Pololu VL53L0X library https://github.com/pololu/vl53l0x-arduino
 * watch video instruction: https://youtu.be/6Js7CPe7Dwo
 * 
 * Must watch two videos
 * Introduction to M5Stack Core 2:https://youtu.be/zoDjT2_0M5g
 * Introduction to VL53L0X: https://youtu.be/S2jaAQEv3Yo
 * 

 * 
  * 
 * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.* 
 * This code has been download from Robojax.com
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see .
  
   URL: https://github.com/RobTillaart/HT16K33
  
*/
#include 

#include 

#include 

VL53L0X sensor;
const uint8_t maximumDistance = 800;///mm 800mm=80cm
uint8_t type = 2;// 1=mm , 2= cm
char *unit[]={"mm","cm"};// variable for unit, mm or cm

float distanceCm;
uint8_t distance;

void printOnSerial();

//setup() runs only once. 
void setup() {
 
  M5.begin();
  M5.Lcd.fillScreen(YELLOW);
  M5.Lcd.setTextColor(RED);
  M5.Lcd.print("Robojax");
  M5.Lcd.print("Distance");
  M5.Lcd.setTextSize(5);
  M5.Lcd.fillScreen(BLACK);

  Wire.begin();        // join i2c bus (address optional for master)
  Serial.println("VLX53LOX test started.");

  Serial.begin(9600);


  sensor.init();
  sensor.setTimeout(500);

  // Start continuous back-to-back mode (take readings as
  // fast as possible).  To use continuous timed mode
  // instead, provide a desired inter-measurement period in
  // ms (e.g. sensor.startContinuous(100)).
  sensor.startContinuous();


delay(1000);


}

void loop() {
  M5.Lcd.fillScreen(BLACK);    
  M5.Lcd.setCursor(0,0);  
  M5.Lcd.print("Distance"); 

  M5.update();

  if(M5.BtnA.wasPressed())
  { 
    type=2;
  }
  if(M5.BtnB.wasPressed())
  {
   type=1;
  }
  if(M5.BtnC.wasPressed())
  {
    M5.Lcd.setCursor(0,0);  
    M5.Lcd.setTextSize(4);    
    M5.Lcd.fillScreen(BLACK);  
    M5.Lcd.print("Shutting down");
    M5.Lcd.setTextColor(YELLOW);    
    M5.Lcd.print("");    
    M5.Lcd.print("Use Power \nswitch to\nturn it ON.");    
    delay(3000);     
    M5.shutdown();
  }  

 distance =sensor.readRangeContinuousMillimeters();//get the distance in mm

  if(type==2){
     M5.Lcd.setCursor(0, 60);      
    distanceCm =(float) (distance/10.0);//convert distance to cm
    M5.Lcd.printf("%.1f", distanceCm);
    //M5.Lcd.print(distanceCm);
    M5.Lcd.print(unit[type-1]);    
  }else{
    M5.Lcd.setCursor(0, 60);  
    M5.Lcd.print(distance);
    M5.Lcd.print(unit[type-1]);
  }
  



  
  delay(500);
  //printOnSerial();
}

void printOnSerial()
{
      Serial.print("Distance: ");  
        if(type==2){ 
           Serial.print(distanceCm);
        }else{
           Serial.print(distance);         
        }
      Serial.print(unit[type-1]);      
      Serial.println();  
}
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