• Porteur(s) du projet : Mathilde Verdu Ibañez, Ugo Berzal, Chloé Chapal (DSAA 1) & Damien MUTI (Prof. de Numérique)
• Date : 03/2021
• Contexte :
• Fichiers :
• Liens :
• Capteurs/Actionneurs :
  • Capteur de distance

ARDUINO

#include “Ultrasonic.h”

Ultrasonic ultrasonic(7);

long distance=0; / variable qui stoke la valeur de la distance

int firstSensor = 0; / first analog sensor

int inByte = 0; / incoming serial byte

void setup() {

// start serial port at 9600 bps:
Serial.begin(9600);
while (!Serial) {
  ; // wait for serial port to connect. Needed for native USB port only
}
establishContact();  // send a byte to establish contact until receiver responds

}

void loop() {

// if we get a valid byte, read analog ins:
if (Serial.available() > 0) {
  // get incoming byte:
  inByte = Serial.read();

  // lecture de la distance
  distance = ultrasonic.MeasureInCentimeters();
  // conversion de la valeur en un octet
  firstSensor = map(distance,0,400,0,255);
  
  // send sensor values:
  Serial.write(firstSensor);
  delay(200);
 
}

}

void establishContact() {

while (Serial.available() <= 0) {
  Serial.print('A');   // send a capital A
  delay(300);
}

}

PROCESSING

import processing.serial.*;

/ graphisme

int bgcolor; / Background color

int fgcolor; / Fill color

int xpos, ypos; / Starting position of the ball

int distance;

PImage[] tabImages;

int NImages = 3;

/port serie

Serial myPort; / The serial port

int serialInArray; / Where we'll put what we receive

int serialCount = 0; / A count of how many bytes we receive

boolean firstContact = false; / Whether we've heard from the microcontroller

void setup() {

size(600, 485);  // Stage size
noStroke();      // No border on the next thing drawn

// Set the starting position of the ball (middle of the stage)
xpos = width/2;
ypos = height/2;

// Print a list of the serial ports, for debugging purposes:
printArray(Serial.list());

// I know that the first port in the serial list on my mac
// is always my  FTDI adaptor, so I open Serial.list()[0].
// On Windows machines, this generally opens COM1.
// Open whatever port is the one you're using.
String portName = Serial.list()[9];
myPort = new Serial(this, portName, 9600);

// espace HSB des couleurs
colorMode(HSB);

//creation tableau images
tabImages=new PImage[NImages];
for (int i=0; i<NImages; i++) {
  tabImages[i]= loadImage("images"+i+".jpg");
}

}

void draw() {

background(bgcolor);
// test distance
if (distance >= 0 && distance < 50) {
  image(tabImages[0], 0, 0, width, height);
} else if (distance >= 50 && distance < 100) {
  image(tabImages[1], 0, 0, width, height);
} else if (distance >= 100 && distance < 150) {
  image(tabImages[2], 0, 0, width, height);
} else {
  image(tabImages[0], 0, 0, width, height);
  //fill(0);
  //rect(0, 0, width, height);
}

 //fill(fgcolor, 255, 255);
// Draw the shape
//ellipse(xpos, ypos, 20, 20);

}

void serialEvent(Serial myPort) {

// read a byte from the serial port:
int inByte = myPort.read();
// if this is the first byte received, and it's an A,
// clear the serial buffer and note that you've
// had first contact from the microcontroller. 
// Otherwise, add the incoming byte to the array:
if (firstContact == false) {
  if (inByte == 'A') { 
    myPort.clear();          // clear the serial port buffer
    firstContact = true;     // you've had first contact from the microcontroller
    myPort.write('A');       // ask for more
  }
} else {
  // Add the latest byte from the serial port to array:
  distance = (int) map(inByte, 0, 255, 0, 400); // remplir le donnée "utile"
  // print the values (for debugging purposes only):
  println("valeur lue sur le port Série = " +  distance);

  // Send a capital A to request new sensor readings:
  myPort.write('A');
  // Reset serialCount:
}

}