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Topic: Sensor with ultrasound+2led+push button (Read 370 times) previous topic - next topic


Mar 25, 2017, 03:28 pm Last Edit: Mar 25, 2017, 03:34 pm by tanis89
Hello guys i'm starting programming and I need help for my project.
I need to know if something is not here and I press the button to turn on 1 led else the other led is turn on

atm I just know how to turn on 1 led with button and how to use sensor ultrasound.
Code: [Select]
void setup()
    Serial.begin(9600); //Initialisation de la communication avec le moniteur série
    pinMode(10,INPUT); //On indique à l'Arduino le mode du pin (entrée)
void loop()
    boolean a=digitalRead(10);// et on l'affecte à la variable "a"
    Serial.println(a); // on l'affiche sur le moniteur

and sensor ultrasound code
Code: [Select]
#define trigPin 13
#define echoPin 12
#define led 11
#define led2 10

void setup() {
  Serial.begin (9600);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(led, OUTPUT);
  pinMode(led2, OUTPUT);

void loop() {
  long duration, distance;
  digitalWrite(trigPin, LOW);  // Added this line
  delayMicroseconds(2); // Added this line
  digitalWrite(trigPin, HIGH);
//  delayMicroseconds(1000); - Removed this line
  delayMicroseconds(10); // Added this line
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = (duration/2) / 29.1;
  if (distance < 4) {  // This is where the LED On/Off happens
    digitalWrite(led,HIGH); // When the Red condition is met, the Green LED should turn off
  else {
  if (distance >= 200 || distance <= 0){
    Serial.println("Out of range");
  else {
    Serial.println(" cm");

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