Rain in Jungle [VL53l0X]

Connecting the VL53l0X

VIN to [+ / VCC / 5V]

GND to [- / GND]

SDA to [A4]

SCL to [A5]

Connecting the MP3 Player

Power can be connected to the breadboard power rails if required.
But for this setup, Power is connected directly to the VCC and Ground is connected directly to the GRD of MP3 Player. TX is connected to [P10] while RX is connect to [P11].

Connecting the Relay

VIN to [+ / VCC / 5V]
GND to [- / GND]

Signal to [P3]

Refer to diagram in connecting the relay!!

Follow the diagram in connecting the circuit in a normally open state.

The arduino code has been included in the file. Or provided below.

You will also need the Adafruit VL53l0X Library.

#include "Adafruit_VL53L0X.h"
#include "SerialMP3Player.h"

#define TX 11
#define RX 10

Adafruit_VL53L0X lox = Adafruit_VL53L0X();
int switchy = 0;

SerialMP3Player mp3(RX,TX);

// constants won't change
const int RELAY_PIN = 3;  // the Arduino pin, which connects to the IN pin of 

void setup() {     
  delay(50);                                                            
  Serial.begin(9600);
  mp3.begin(9600);        // start mp3-communication
  delay(500);             // wait for init

  mp3.sendCommand(CMD_SEL_DEV, 0, 2);   //select sd-card
  delay(500);             // wait for init
  //Relay humidifier combo
  pinMode(RELAY_PIN, OUTPUT); 
  pinMode(switchy, OUTPUT);
//  digitalWrite(switchy, LOW); 
//  
  digitalWrite(switchy, HIGH);
  // wait until serial port opens for native USB devices
  while (! Serial) {
    delay(1);
  }    
  Serial.println("Adafruit VL53L0X test");
  if (!lox.begin()) {
    Serial.println(F("Failed to boot VL53L0X"));
    while(1);
  }
  // power 
  Serial.println(F("VL53L0X API Simple Ranging example\n\n")); 
}


void loop() {
  VL53L0X_RangingMeasurementData_t measure;
  digitalWrite(RELAY_PIN, HIGH);
//  digitalWrite(15, LOW); 
  Serial.print("Reading a measurement... ");
  lox.rangingTest(&measure, false); // pass in 'true' to get debug data printout!

  if (measure.RangeStatus != 4) {  // phase failures have incorrect data
    Serial.print("Distance (mm): "); Serial.println(measure.RangeMilliMeter);
    if(measure.RangeMilliMeter < 50){
      Serial.println("Very close huh");
      digitalWrite(RELAY_PIN, LOW);
//      digitalWrite(14, HIGH); 
      Serial.println("Switched On");
       mp3.play();     // Play "hello.mp3". You must hear "Hello World"
       delay(3000);    // wait 3 seconds
      
    }
    if(measure.RangeMilliMeter > 51){
      Serial.println("Bye");
      digitalWrite(RELAY_PIN, HIGH);
//       digitalWrite(14, LOW); 
      Serial.println("Switched Off");
      mp3.reset();     // Play "hello.mp3". You must hear "Hello World"
      delay(3000);    // wait 3 seconds
    }
  } 
  else {
    Serial.println(" out of range ");
      digitalWrite(RELAY_PIN, HIGH);
  }
    
  delay(100);
}