Supersonic SRF05 Sensors

This Module can be used to plug several Supersonic SRF05 sensors into your project. Connect your sensors to any digital pin on your board.

Download the source file

Table of contents

(top)

Source - modSupersonicSRF05


/**************************************************************************************************
*
*  Supersonic SRF05 - Module
*
*   Version:      1.0.0 - January 2009
*   Author:       Etienne Ribeiro    / tutorial assistant caad      /  eribeiro[at]ethz.ch
*   Supervisor:   Christoph Wartmann / chair for caad - ETH Zürich  /  wartmann[at].arch.ethz.ch
*
*   Desc:         This Module can be used to plug severel Supersonic SRF05 Sensors to your
*                 project. Connect your sensors to any digital pin on your board.
*
*   Methode:      int SRF05_getDistance (int digitalPin)
*                   digitalPin: Pin where your Supersonic Sensor is connected.
*                 void SRF05_getDistanceInCM (int digitalPin, int *ret1, int *ret2)
*                   digitalPin: Pin where your Supersonic Sensor is connected.
*                   *ret1: Return Value (upper). Access this value by &var
*                   *ret2: Return Value (lower). Access this value by &var
*                 void SRF05_toCM (int imp, int *ret1, int *ret2)
*                   imp: impules you mesured with SRF05_getDistance
*                   *ret1: Return Value (upper). Access this value by &var
*                   *ret2: Return Value (lower). Access this value by &var
*
***************************************************************************************************/



//
// Functions

int SRF05_getDistance (int digitalPin) {

        // Trigger pulse
        pinMode(digitalPin, OUTPUT);
        digitalWrite(digitalPin, LOW);
        delayMicroseconds(2);
        digitalWrite(digitalPin, HIGH);
        delayMicroseconds(10);
        digitalWrite(digitalPin, LOW);


        // Mesure echo pulse
        pinMode(digitalPin, INPUT);
        return pulseIn(digitalPin, HIGH); //, 1000);

}



void SRF05_getDistanceInCM (int digitalPin, int *ret1, int *ret2) {


        int val = SRF05_getDistance (digitalPin);
        SRF05_toCM (val, ret1, ret2);

}


void SRF05_toCM (int imp, int *ret1, int *ret2) {

        *ret1 = imp / 58;
        *ret2 = imp % 58 * 100 / 58;

}

(top)

Source - Main


/**************************************************************************************************
*
*  Supersonic SRF05
*
*   Version:      1.0.0 - January 2009
*   Author:       Etienne Ribeiro    / tutorial assistant caad      /  eribeiro[at]ethz.ch
*   Supervisor:   Christoph Wartmann / chair for caad - ETH Zürich  /  wartmann[at].arch.ethz.ch
*
*   Desc:         This Module can be used to plug severel Supersonic SRF05 Sensors to your
*                 project. Connect your sensors to any digital pin on your board.
*
***************************************************************************************************/




// Const

static int digitalPin1 = 0;
static int digitalPin2 = 24;



// Setup

void setup() {

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


        // Initialize Serial
        Serial.begin(9600);
        Serial.println("Wiring Started");

}




// Loop

void loop() {

        // Mesure Distance:
        int ret1;
        int ret2;
        SRF05_getDistanceInCM (digitalPin1, &ret1, &ret2);
        //
        int ret3;
        int ret4;
        SRF05_getDistanceInCM (digitalPin2, &ret3, &ret4);


        // Print
        Serial.print(ret1);
        Serial.print(".");
        Serial.print(ret2);
        Serial.print("         --        ");
        Serial.print(ret3);
        Serial.print(".");
        Serial.println(ret4);


        // Wait
        delay(50);

}