iPhone application and Arduino code uploaded

README.md

@@ -1,4 +1,7 @@
 DistanceMeasurer
 ================
 
-Uses ultrasonic sensor + Arduino to record distance on iOS
+Uses ultrasonic sensor + Arduino to record distance on iOS
+
+iDeviceConsoleTestLe/folder is the code for iPhone serial monitor
+Ultrasonic/folder is the code on Arduino

Ultrasonic/Ultrasonic.cpp

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+/*
+  Ultrasonic.cpp - Library for HC-SR04 Ultrasonic Ranging Module.library
+
+  Created by ITead studio. Apr 20, 2010.
+  iteadstudio.com
+*/
+
+#include "WProgram.h"
+#include "Ultrasonic.h"
+
+Ultrasonic::Ultrasonic(int TP, int EP)
+{
+   pinMode(TP,OUTPUT);
+   pinMode(EP,INPUT);
+   Trig_pin=TP;
+   Echo_pin=EP;
+}
+
+long Ultrasonic::Timing()
+{
+  digitalWrite(Trig_pin, LOW);
+  delayMicroseconds(2);
+  digitalWrite(Trig_pin, HIGH);
+  delayMicroseconds(10);
+  digitalWrite(Trig_pin, LOW);
+  duration = pulseIn(Echo_pin,HIGH);
+  return duration;
+}
+
+long Ultrasonic::Ranging(int sys)
+{
+  Timing();
+  distacne_cm = duration /29 / 2 ;
+  distance_inc = duration / 74 / 2;
+  if (sys)
+  return distacne_cm;
+  else
+  return distance_inc;
+}

Ultrasonic/Ultrasonic.h

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+/*
+  Ultrasonic.h - Library for HR-SC04 Ultrasonic Ranging Module.
+  Created by ITead studio. Alex, Apr 20, 2010.
+  iteadstudio.com
+*/
+
+
+#ifndef Ultrasonic_h
+#define Ultrasonic_h
+
+#include "WProgram.h"
+
+#define CM 1
+#define INC 0
+
+class Ultrasonic
+{
+  public:
+    Ultrasonic(int TP, int EP);
+    long Timing();
+    long Ranging(int sys);
+
+    private:
+    int Trig_pin;
+    int Echo_pin;
+    long  duration,distacne_cm,distance_inc;
+
+};
+
+#endif

Ultrasonic/examples/UltrasonicDemo/UltrasonicDemo.ino

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+/*
+HC-SR04 Ultrasonic module results to Arduino serial monitor
+*/
+#define ECHOPIN 2        // Pin to receive echo pulse
+#define TRIGPIN 3        // Pin to send trigger pulse
+
+void setup()
+{
+  Serial.begin(9600);
+  pinMode(ECHOPIN, INPUT);
+  pinMode(TRIGPIN, OUTPUT);
+}
+
+void loop()
+{
+  // Trigger Trig pin to Start Ranging
+  digitalWrite(TRIGPIN, LOW);
+  delayMicroseconds(2);
+  digitalWrite(TRIGPIN, HIGH);
+  delayMicroseconds(10);
+  digitalWrite(TRIGPIN, LOW);
+  // Compute distance
+  float distance = pulseIn(ECHOPIN, HIGH);
+//pulseIn(pin,value) reads a pulse length of the value.(microseconds)
+  distance= distance/58; 
+// From datasheet: pluse width(uS)/58 = distance (cm)
+// pluse width(uS)/148 = distance (inch)
+  Serial.println(distance);
+  delay(1000); // return distance per second.
+
+}
+
+
+
+

Ultrasonic/keywords.txt

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+Ultrasonic	KEYWORD1
+Timing	KEYWORD2
+Ranging	KEYWORD2
+CM	LITERAL1	Constants
+INC	LITERAL1	Constants