Revision 4:d76458b00616, committed 2017-12-03

Comitter:

reesey

Date:

Sun Dec 03 18:47:45 2017 +0000

Parent:

3:9ddabd24f48c

Commit message:

Written by Leong Kum Loong.; 04 Dec 2017, REV. 0; When HCSR04.h reference is included, DO NOT declare pin p21 & p22 as it is used by my library.

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HCSR04.cpp	Sun Dec 03 18:47:45 2017 +0000
@@ -0,0 +1,60 @@
+#include "mbed.h"
+#include "HCSR04.h"
+/*
+    HCSR04.h
+    Written by Leong Kum Loong.
+    04 Dec 2017, REV. 0
+    
+    All routines and functions in this library are written by me solely.
+    Library for HC-SR04 Ultrasonic Ranging sensor.
+    Library uses pins p21 to send pulse to sensor Trigger input & p22 to read sensor Echo output.
+    This is assuming velocity of sound rate from ultrasonic pulse is 340m/s.
+*/
+
+DigitalOut trig(p21);
+DigitalIn echo(p22);
+Timer echoTime;
+Ticker interval;
+
+float distance = 0;
+
+float divisor;
+
+static void findDistance(){
+    trig = 1;
+    wait_ms(10);
+    trig = 0;
+    wait_ms(20);
+    
+    trig = 1;
+    wait_us(10);
+    trig = 0;
+    
+    while(!echo);
+    echoTime.start();
+    while(echo);
+    echoTime.stop();
+    
+    distance = (float)echoTime.read_us()/(float)2 * 0.034 / (float)divisor;
+    echoTime.reset();
+}
+
+//Start monitoring distance.
+void getDistance(int unit){
+    //1 for CM & 2 for INCH
+    switch(unit){
+    case 1:
+        divisor = 1;        //Default divisor to get CM.
+        break;
+    case 2:
+        divisor = 2.54;     //Divisor to get INCH.
+        break;    
+    }
+
+    interval.attach(findDistance, 0.1);
+}
+
+//Retrieve distance stored.
+float readDistance(){
+    return distance;    
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HCSR04.h	Sun Dec 03 18:47:45 2017 +0000
@@ -0,0 +1,22 @@
+/*
+    HCSR04.h
+    Written by Leong Kum Loong.
+    04 Dec 2017, REV. 0
+    
+    All routines and functions in this library are written by me solely.
+    Library for HC-SR04 Ultrasonic Ranging sensor.
+    Library uses pins p21 to send pulse to sensor Trigger input & p22 to read sensor Echo output.
+    This is assuming velocity of sound rate from ultrasonic pulse is 340m/s.
+*/
+
+#ifndef HCSR04_h
+#define HCSR04_h
+#include "mbed.h"
+
+//1 for CM & 2 for INCH
+void getDistance(int unit=1);
+
+//Read current distance.
+float readDistance();
+
+#endif
\ No newline at end of file

--- a/tone.cpp	Mon Nov 20 03:53:48 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,471 +0,0 @@
-#include "mbed.h"
-#include "tone.h"
-/*
-    tone.h
-    Written by Leong Kum Loong.
-    20 Nov 2017, REV. 2
-    
-    All routines and functions in this library are written by me solely with the purpose
-    of implementing an identical "tone" library that was introduced by Arduino IDE.
-    
-    Example reference from Github
-    ===============================
-    The mario_example routine "notes" are reference to the work of Gregory Kielian.
-    The starwars_example routine "notes" are reference to the work of nicksort.
-*/
-
-PwmOut speaker(p26);
-
-void tone(int frequency, int duration_ms){
-    float period = (float)1/(float)frequency;
-    speaker.period(period);
-    speaker.pulsewidth(period/(float)(2));
-    if(duration_ms){
-        wait_ms(duration_ms);
-        speaker = 0;
-    }
-}
-
-void noTone(){
-    speaker = 0;
-}
-
-//Mario theme section.
-static void delay(int millis){
-    wait_ms(millis * 0.7);  //If play speed sounds weird, try modify delay here.
-}
-
-void mario_example(){
-    tone(660,100);         
-    delay(150);
-    tone(660,100);
-    delay(300);
-    tone(660,100);
-    delay(300);
-    tone(510,100);
-    delay(100);
-    tone(660,100);
-    delay(300);
-    tone(770,100);
-    delay(550);
-    tone(380,100);
-    delay(575);
-
-    tone(510,100);
-    delay(450);
-    tone(380,100);
-    delay(400);
-    tone(320,100);
-    delay(500);
-    tone(440,100);
-    delay(300);
-    tone(480,80);
-    delay(330);
-    tone(450,100);
-    delay(150);
-    tone(430,100);
-    delay(300);
-    tone(380,100);
-    delay(200);
-    tone(660,80);
-    delay(200);
-    tone(760,50);
-    delay(150);
-    tone(860,100);
-    delay(300);
-    tone(700,80);
-    delay(150);
-    tone(760,50);
-    delay(350);
-    tone(660,80);
-    delay(300);
-    tone(520,80);
-    delay(150);
-    tone(580,80);
-    delay(150);
-    tone(480,80);
-    delay(500);
-
-    tone(510,100);
-    delay(450);
-    tone(380,100);
-    delay(400);
-    tone(320,100);
-    delay(500);
-    tone(440,100);
-    delay(300);
-    tone(480,80);
-    delay(330);
-    tone(450,100);
-    delay(150);
-    tone(430,100);
-    delay(300);
-    tone(380,100);
-    delay(200);
-    tone(660,80);
-    delay(200);
-    tone(760,50);
-    delay(150);
-    tone(860,100);
-    delay(300);
-    tone(700,80);
-    delay(150);
-    tone(760,50);
-    delay(350);
-    tone(660,80);
-    delay(300);
-    tone(520,80);
-    delay(150);
-    tone(580,80);
-    delay(150);
-    tone(480,80);
-    delay(500);
-
-    tone(500,100);
-    delay(300);
-
-    tone(760,100);
-    delay(100);
-    tone(720,100);
-    delay(150);
-    tone(680,100);
-    delay(150);
-    tone(620,150);
-    delay(300);
-
-    tone(650,150);
-    delay(300);
-    tone(380,100);
-    delay(150);
-    tone(430,100);
-    delay(150);
-
-    tone(500,100);
-    delay(300);
-    tone(430,100);
-    delay(150);
-    tone(500,100);
-    delay(100);
-    tone(570,100);
-    delay(220);
-
-    tone(500,100);
-    delay(300);
-
-    tone(760,100);
-    delay(100);
-    tone(720,100);
-    delay(150);
-    tone(680,100);
-    delay(150);
-    tone(620,150);
-    delay(300);
-
-    tone(650,200);
-    delay(300);
-
-    tone(1020,80);
-    delay(300);
-    tone(1020,80);
-    delay(150);
-    tone(1020,80);
-    delay(300);
-
-    tone(380,100);
-    delay(300);
-    tone(500,100);
-    delay(300);
-
-    tone(760,100);
-    delay(100);
-    tone(720,100);
-    delay(150);
-    tone(680,100);
-    delay(150);
-    tone(620,150);
-    delay(300);
-
-    tone(650,150);
-    delay(300);
-    tone(380,100);
-    delay(150);
-    tone(430,100);
-    delay(150);
-
-    tone(500,100);
-    delay(300);
-    tone(430,100);
-    delay(150);
-    tone(500,100);
-    delay(100);
-    tone(570,100);
-    delay(420);
-
-    tone(585,100);
-    delay(450);
-
-    tone(550,100);
-    delay(420);
-
-    tone(500,100);
-    delay(360);
-
-    tone(380,100);
-    delay(300);
-    tone(500,100);
-    delay(300);
-    tone(500,100);
-    delay(150);
-    tone(500,100);
-    delay(300);
-
-    tone(500,100);
-    delay(300);
-
-    tone(760,100);
-    delay(100);
-    tone(720,100);
-    delay(150);
-    tone(680,100);
-    delay(150);
-    tone(620,150);
-    delay(300);
-
-    tone(650,150);
-    delay(300);
-    tone(380,100);
-    delay(150);
-    tone(430,100);
-    delay(150);
-
-    tone(500,100);
-    delay(300);
-    tone(430,100);
-    delay(150);
-    tone(500,100);
-    delay(100);
-    tone(570,100);
-    delay(220);
-
-    tone(500,100);
-    delay(300);
-
-    tone(760,100);
-    delay(100);
-    tone(720,100);
-    delay(150);
-    tone(680,100);
-    delay(150);
-    tone(620,150);
-    delay(300);
-
-    tone(650,200);
-    delay(300);
-
-    tone(1020,80);
-    delay(300);
-    tone(1020,80);
-    delay(150);
-    tone(1020,80);
-    delay(300);
-
-    tone(380,100);
-    delay(300);
-    tone(500,100);
-    delay(300);
-
-    tone(760,100);
-    delay(100);
-    tone(720,100);
-    delay(150);
-    tone(680,100);
-    delay(150);
-    tone(620,150);
-    delay(300);
-
-    tone(650,150);
-    delay(300);
-    tone(380,100);
-    delay(150);
-    tone(430,100);
-    delay(150);
-
-    tone(500,100);
-    delay(300);
-    tone(430,100);
-    delay(150);
-    tone(500,100);
-    delay(100);
-    tone(570,100);
-    delay(420);
-
-    tone(585,100);
-    delay(450);
-
-    tone(550,100);
-    delay(420);
-
-    tone(500,100);
-    delay(360);
-
-    tone(380,100);
-    delay(300);
-    tone(500,100);
-    delay(300);
-    tone(500,100);
-    delay(150);
-    tone(500,100);
-    delay(300);
-
-    tone(500,60);
-    delay(150);
-    tone(500,80);
-    delay(300);
-    tone(500,60);
-    delay(350);
-    tone(500,80);
-    delay(150);
-    tone(580,80);
-    delay(350);
-    tone(660,80);
-    delay(150);
-    tone(500,80);
-    delay(300);
-    tone(430,80);
-    delay(150);
-    tone(380,80);
-    delay(600);
-
-    tone(500,60);
-    delay(150);
-    tone(500,80);
-    delay(300);
-    tone(500,60);
-    delay(350);
-    tone(500,80);
-    delay(150);
-    tone(580,80);
-    delay(150);
-    tone(660,80);
-    delay(550);
-
-    tone(870,80);
-    delay(325);
-    tone(760,80);
-    delay(600);
-
-    tone(500,60);
-    delay(150);
-    tone(500,80);
-    delay(300);
-    tone(500,60);
-    delay(350);
-    tone(500,80);
-    delay(150);
-    tone(580,80);
-    delay(350);
-    tone(660,80);
-    delay(150);
-    tone(500,80);
-    delay(300);
-    tone(430,80);
-    delay(150);
-    tone(380,80);
-    delay(600);
-
-    tone(660,100);
-    delay(150);
-    tone(660,100);
-    delay(300);
-    tone(660,100);
-    delay(300);
-    tone(510,100);
-    delay(100);
-    tone(660,100);
-    delay(300);
-    tone(770,100);
-    delay(550);
-    tone(380,100);
-    delay(575);
-}
- 
-  
-//Star wars theme section.
-int c = 261, d = 294, e = 329, f = 349, g = 391, gS = 415, a = 440, aS = 455, b = 466, cH = 523;
-int cSH = 554, dH = 587, dSH = 622, eH = 659, fH = 698, fSH = 740, gH = 784, gSH = 830, aH = 880;
-
-void firstSection(){
-    tone(a, 500);
-    tone(a, 500);    
-    tone(a, 500);
-    tone(f, 350);
-    tone(cH, 150);  
-    tone(a, 500);
-    tone(f, 350);
-    tone(cH, 150);
-    tone(a, 650);
-    wait_ms(500);
- 
-    tone(eH, 500);
-    tone(eH, 500);
-    tone(eH, 500);  
-    tone(fH, 350);
-    tone(cH, 150);
-    tone(gS, 500);
-    tone(f, 350);
-    tone(cH, 150);
-    tone(a, 650);
-    wait_ms(500);
-}
- 
-void secondSection(){
-    tone(aH, 500);
-    tone(a, 300);
-    tone(a, 150);
-    tone(aH, 500);
-    tone(gSH, 325);
-    tone(gH, 175);
-    tone(fSH, 125);
-    tone(fH, 125);
-    tone(fSH, 250);
-    wait_ms(325);
- 
-    tone(aS, 250);
-    tone(dSH, 500);
-    tone(dH, 325);  
-    tone(cSH, 175);  
-    tone(cH, 125);  
-    tone(b, 125);  
-    tone(cH, 250);  
-    wait_ms(350);
-}
-
-void starwars_example(){
-    firstSection();
-    
-    secondSection();
- 
-    //Variant 1
-    tone(f, 250);  
-    tone(gS, 500);  
-    tone(f, 350);  
-    tone(a, 125);
-    tone(cH, 500);
-    tone(a, 375);  
-    tone(cH, 125);
-    tone(eH, 650);
-    wait_ms(500);
- 
-    secondSection();
- 
-    //Variant 2
-    tone(f, 250);  
-    tone(gS, 500);  
-    tone(f, 375);  
-    tone(cH, 125);
-    tone(a, 500);  
-    tone(f, 375);  
-    tone(cH, 125);
-    tone(a, 650);
-    wait_ms(650);
-}
\ No newline at end of file

--- a/tone.h	Mon Nov 20 03:53:48 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,27 +0,0 @@
-/*
-    tone.h
-    Written by Leong Kum Loong.
-    20 Nov 2017, REV. 2
-    
-    All routines and functions in this library are written by me solely with the purpose
-    of implementing an identical "tone" library that was introduced by Arduino IDE.
-    
-    Example reference from Github
-    ===============================
-    The mario_example routine "notes" are reference to the work of Gregory Kielian.
-    The starwars_example routine "notes" are reference to the work of nicksort.
-*/
-
-#ifndef tone_h
-#define tone_h
-#include "mbed.h"
-
-void tone(int frequency, int duration_ms=0);    //Sound tone at specific frequency of 50% duty cycle and duration(optional).
-
-void noTone();  //Turn off tone.
-
-void mario_example();  
-
-void starwars_example();
-
-#endif
\ No newline at end of file