Jinghan Yu
its a test
Dependencies: mbed HC_SR04_Ultrasonic_Library
Revision 0:c019b7e987f6, committed 2019-05-18
- Comitter:
- JinghanYu
- Date:
- Sat May 18 17:12:42 2019 +0000
- Commit message:
- it's a test
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HC_SR04_Ultrasonic_Library.lib Sat May 18 17:12:42 2019 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/ejteb/code/HC_SR04_Ultrasonic_Library/#e0f9c9fb4cf3
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SongPlayer.h Sat May 18 17:12:42 2019 +0000
@@ -0,0 +1,41 @@
+#include "mbed.h"
+// new class to play a note on Speaker based on PwmOut class
+class SongPlayer
+{
+public:
+ SongPlayer(PinName pin) : _pin(pin) {
+// _pin(pin) means pass pin to the constructor
+ }
+// class method to play a note based on PwmOut class
+ void PlaySong(float frequency[], float duration[], float volume=1.0) {
+ vol = volume;
+ notecount = 0;
+ _pin.period(1.0/frequency[notecount]);
+ _pin = volume/2.0;
+ noteduration.attach(this,&SongPlayer::nextnote, duration[notecount]);
+ // setup timer to interrupt for next note to play
+ frequencyptr = frequency;
+ durationptr = duration;
+ //returns after first note starts to play
+ }
+ void nextnote();
+private:
+ Timeout noteduration;
+ PwmOut _pin;
+ int notecount;
+ float vol;
+ float * frequencyptr;
+ float * durationptr;
+};
+//Interrupt Routine to play next note
+void SongPlayer::nextnote()
+{
+ _pin = 0.0;
+ notecount++; //setup next note in song
+ if (durationptr[notecount]!=0.0) {
+ _pin.period(1.0/frequencyptr[notecount]);
+ noteduration.attach(this,&SongPlayer::nextnote, durationptr[notecount]);
+ _pin = vol/2.0;
+ } else
+ _pin = 0.0; //turn off on last note
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat May 18 17:12:42 2019 +0000
@@ -0,0 +1,71 @@
+#include "mbed.h"
+#include "ultrasonic.h"
+#include "SongPlayer.h"
+
+#define mDo 523.25
+#define mDoplus 554.37
+#define mRe 587.33
+#define mMi 659.26
+#define mFa 698.46
+#define mFaplus 740
+#define mSol 783.99
+#define mLa 880
+#define mSi 987.77
+#define hDo 1046.5
+#define hRe 1174.7
+#define hMi 1318.5
+#define hFa 1396.9
+#define hSol 1568.9
+#define hLa 1760.0
+#define hSi 1975.5
+#define half 0.24
+#define full 0.48
+#define threehalf 0.72
+#define twofull 0.96
+#define DELAY_M 4000
+#define DELAY_U 5500
+
+float note_song1[9]= {mSol,mSol,mLa,mSol,mRe,mMi,mRe,mDo,0.0};
+float duration_song1[9]= {full,full,full,full,full,half,half,twofull,0.0};
+float note_song2[20]= {mSol,mFaplus,mSol,hDo,mSol,mMi,mRe,mDoplus,mRe,mSol,mFa,mRe,mDo,mMi,mSol,mMi,mSol,mMi,mDo,0.0};
+float duration_song2[20]= {half,half,half,half,half,half,half,half,half,half,half,half,half,half,half,half,half,half,full,0.0};
+
+DigitalOut led(LED1);
+DigitalIn mercury1(D8);
+PwmOut music(D6);
+
+void dist(int distance)
+{
+ //put code here to happen when the distance is changed
+ if(distance<500){
+ SongPlayer mySpeaker(D6);
+ mySpeaker.PlaySong(note_song2,duration_song2);
+ wait_ms(DELAY_U);
+ }
+ else{
+ wait_ms(500);
+ }
+ printf("Distance changed to %dmm\r\n", distance);
+}
+
+ultrasonic mu(D9, D10, .5, 1, &dist); //Set the trigger pin to D8 and the echo pin to D9
+ //have updates every .5 seconds and a timeout after 1
+ //second, and call dist when the distance changes
+int main() {
+
+ mu.startUpdates();//start mesuring the distance
+ while(1) {
+ if(mercury1 == 0){
+ led = 0;
+ wait_ms(500);
+ }
+ else{
+ led = 1;
+ SongPlayer mySpeaker(D6);
+ mySpeaker.PlaySong(note_song1,duration_song1);
+ wait_ms(DELAY_M);
+ }
+ mu.checkDistance(); //call checkDistance() as much as possible, as this is where
+ //the class checks if dist needs to be called.
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sat May 18 17:12:42 2019 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file