Supersonic

This Example shows the use of an ultrasonic sensor.

Source - Main


/**************************************************************************************************
*
*  Supersonic SRF05
*
*   Version:      1.0.0 - September 2008
*   Author:       Etienne Ribeiro    / tutorial assistant caad      /  eribeiro[at]ethz.ch
*   Supervisor:   Christoph Wartmann / chair for caad - ETH Zürich  /  wartmann[at].arch.ethz.ch
*
*   Desc:         Shows the use of the SRF05 Supersonic Sensor  on digital pin.
*
***************************************************************************************************/





// Const

static int digitalPin = 34;
static boolean enableSerial = false;


// (Var)
int lastImp = 0;




// Setup

void setup() {

        //LED (2 * blink)
        pinMode(48, OUTPUT);
        digitalWrite(48, HIGH);
        delay(200);
        digitalWrite(48, LOW);
        delay(200);
        digitalWrite(48, HIGH);


        // LCD
        Display_Clear();
        Display_Println("Supersonic LCD");


        // Serial (Print to serial if enableSerial = true)
        if (enableSerial == true) Serial.begin(9600);


        pinMode(digitalPin, INPUT);

}




// Loop

void loop() {

        // Trigger pulse
        digitalWrite(digitalPin, HIGH);
        delayMicroseconds(10);
        digitalWrite(digitalPin, LOW);


        // Mesure echo pulse
        int imp = pulseIn(digitalPin, HIGH);


        // LCD
        if (imp != lastImp) {

                lastImp = imp;
                Display_Clear();
                Display_Println("  ", imp / 58, " cm");

        }


        // Serial
        if (enableSerial == true) {

                Serial.print(imp);
                Serial.print(" -> ");
                Serial.print(imp / 58);
                Serial.println("cm");

        }


        // Wait
        delay(50);

}

Source - LCD Class


/**************************************************************************************************
*
*  LCD Class
*
*   Version:      1.0.0 - September 2008
*   Author:       Etienne Ribeiro    / tutorial assistant caad      /  eribeiro[at]ethz.ch
*   Supervisor:   Christoph Wartmann / chair for caad - ETH Zürich  /  wartmann[at].arch.ethz.ch
*
*   Desc:         Library for an 14 Pin LCD Displays.
*
***************************************************************************************************/

#include <LiquidCrystal.h>




// CONST:

const int port = 3;               // Port on Wiring Board
const int pins[] = {37, 38, 39};      // Pins on Wiring Board



// VAR

LiquidCrystal myDisplay = LiquidCrystal(pins[0], pins[1], pins[2], port);
int iLine = 0;



// Methodes

void Display_Clear(){
        iLine = 0;
        myDisplay.clear();
        myDisplay.home();
}
void Display_Println(char str[]){
        myDisplay.home();
        myDisplay.setCursor(0, iLine);
        myDisplay.print(str);
        iLine += 1;
}
void Display_Println(char str[], char str2[]){
        myDisplay.home();
        myDisplay.setCursor(0, iLine);
        myDisplay.print(str);
        myDisplay.print(" ");
        myDisplay.print(str2);
        iLine += 1;
}
void Display_Println(char str[], int zahl){
        myDisplay.home();
        myDisplay.setCursor(0, iLine);
        myDisplay.print(str);
        myDisplay.print(" ");
        myDisplay.print(zahl);
        iLine += 1;
}
void Display_Println(char str1[], int zahl, char str2[]){
        myDisplay.home();
        myDisplay.setCursor(0, iLine);
        myDisplay.print(str1);
        myDisplay.print(" ");
        myDisplay.print(zahl);
        myDisplay.print(str2);
        iLine += 1;
}
void Display_Print(char str[]){
        myDisplay.print(str);
}