Revision 1:14f493caf676, committed 2016-12-09

Comitter:

laxman7117

Date:

Fri Dec 09 15:28:09 2016 +0000

Parent:

0:e693d5bf0a25

Child:

2:c9577006ff47

Commit message:

Gesture Controlled Music Player

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SMARTWAV.lib	Fri Dec 09 15:28:09 2016 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/users/emmanuelchio/code/SMARTWAV/#7c00b67d33e5

--- a/main.cpp	Wed Feb 03 18:47:07 2016 +0000
+++ b/main.cpp	Fri Dec 09 15:28:09 2016 +0000
@@ -1,5 +1,6 @@
 #include "mbed.h"
 #include "LSM9DS1.h"
+#include "SMARTWAV.h"
 #define PI 3.14159
 // Earth's magnetic field varies by location. Add or subtract
 // a declination to get a more accurate heading. Calculate
@@ -7,8 +8,31 @@
 // http://www.ngdc.noaa.gov/geomag-web/#declination
 #define DECLINATION -4.94 // Declination (degrees) in Atlanta,GA.
 
-DigitalOut myled(LED1);
-Serial pc(USBTX, USBRX);
+SMARTWAV sWav(p13,p14,p15);    //(TX,RX,Reset); Music Player
+LSM9DS1 IMU(p9, p10, 0xD6, 0x3C); // IMU for gesture control
+DigitalOut myled1(LED1);          // Gesture feedback
+DigitalOut myled2(LED2);          // Gesture feedback
+DigitalOut myled3(LED3);          // Gesture feedback
+DigitalOut myled4(LED4);          // Gesture feedback
+Serial pc(USBTX, USBRX);          
+DigitalIn pb(p20);                // Read gesture input controller
+
+//define code for volume control
+AnalogIn IRSensor(p19);
+DigitalIn pushbutton(p8); //grounded - locks in volume control
+
+char level='9'; // Default volume level
+
+float Pitch;
+float Roll;
+float pitch;
+float roll;
+bool flag = true; // Reading in a base values
+bool start_music = true; 
+bool music_playing = false;
+bool flag2 = true;
+
+
 // Calculate pitch, roll, and heading.
 // Pitch/roll calculations taken from this app note:
 // http://cache.freescale.com/files/sensors/doc/app_note/AN3461.pdf?fpsp=1
@@ -16,8 +40,8 @@
 // http://www51.honeywell.com/aero/common/documents/myaerospacecatalog-documents/Defense_Brochures-documents/Magnetic__Literature_Application_notes-documents/AN203_Compass_Heading_Using_Magnetometers.pdf
 void printAttitude(float ax, float ay, float az, float mx, float my, float mz)
 {
-    float roll = atan2(ay, az);
-    float pitch = atan2(-ax, sqrt(ay * ay + az * az));
+    roll = atan2(ay, az);
+    pitch = atan2(-ax, sqrt(ay * ay + az * az));
 // touchy trig stuff to use arctan to get compass heading (scale is 0..360)
     mx = -mx;
     float heading;
@@ -37,24 +61,100 @@
     pitch *= 180.0 / PI;
     roll  *= 180.0 / PI;
 
-    pc.printf("Pitch: %f,    Roll: %f degress\n\r",pitch,roll);
-    pc.printf("Magnetic Heading: %f degress\n\r",heading);
+    //pc.printf("Pitch: %f,    Roll: %f degress\n\r",pitch, roll);
+    //pc.printf("Magnetic Heading: %f degress\n\r",heading);
 }
 
+void controlvolume(){
+    
+    float a = IRSensor;// 1=4cm 0=30cm 
+    if (pushbutton==0) //when the dipswitch is on change the volume; leds are defined to indicate volume level55yyh
+    {             
+             
+                              if (a>0.9) //change to lowest volume
+                            {
+                                 sWav.volume(MIN); //all volume values are defined in smartwav.h file
+                                 level = '0';
+                              
+                            }   
+                             if (a>0.8 & a<=0.9)
+                            {
+                           sWav.volume(MIN0); 
+                           level = '1';
+                            }   
+                            if (a>0.7 & a<=0.8)
+                            {
+                           sWav.volume(MIN1);
+                             level = '2';
+                            }
+                            if (a>0.6 & a<=.7)
+                         {
+                          sWav.volume(MIN2);
+                          level = '3';
+                             
+                            }
+                            if (a>0.5 & a<=.6)
+                         {
+                          sWav.volume(MIN3);
+                             level = '4';
+                            }
+                            if(a>.4 & a<=.5)
+                            {
+                          sWav.volume(MED1);
+                          level = '5';  
+                            }
+                            if(a>.2 & a<=.3)
+                            {
+                          sWav.volume(MED2);
+                               level = '6'; 
+                            }
+                            if(a>0.1 & a<=.2) 
+                            {
+                         sWav.volume(MED3);
+                         level = '8';
+                                    }
+                            if(a<=0.1) //change to HIGHEST volume
+                            {
+                         sWav.volume(MAX);
+                              level = '8';
+                                    }
+                                      if(level!='9'){pc.printf("v%c",level);}
+    wait(.1);
+    }
+}
 
 
 
 int main()
 {
-    //LSM9DS1 lol(p9, p10, 0x6B, 0x1E);
-    LSM9DS1 IMU(p28, p27, 0xD6, 0x3C);
+    //char name[9]={0};
+    //char prev[9]={0}; 
+    sWav.reset();                //physically reset SMARTWAV
+    myled1 = 1; myled2 = 1; myled3 = 1; myled4 = 1; // All 4 leds light up until calibration is finished
+    pb.mode(PullUp); //pushbutton for controlling gesture input 
+    pushbutton.mode(PullUp); //pushbutton for controlling volume
+    LSM9DS1 IMU(p9, p10, 0xD6, 0x3C); 
     IMU.begin();
     if (!IMU.begin()) {
         pc.printf("Failed to communicate with LSM9DS1.\n");
     }
     IMU.calibrate(1);
     IMU.calibrateMag(0);
-    while(1) {
+    myled1 = 0; myled2 = 0; myled3 = 0; myled4 = 0; // All leds turn off to indicate calibration is finished
+    sWav.continuousPlay(ENABLE);
+while(1) {
+controlvolume(); //initiate volume function using IR sensor
+    // The pushbutton controls the reading of the IMU(gestures) if it is not presseed the gestures will be ignored
+    // Pressing the pushbutton for the first time starts the music playing      
+    if (pb == 0){
+        // Starting music for the first time function
+        if (start_music == true){
+            pc.putc('P'); // Send 'P' to let the windows app that music has started to play
+            sWav.playTracks(); // Play music
+            start_music = false; // Keeps function from executing again
+            music_playing = true; // Music is now playing
+            }
+        // Read IMU Values only the accel and mag values are being used to calculate the pitch and roll
         while(!IMU.tempAvailable());
         IMU.readTemp();
         while(!IMU.magAvailable(X_AXIS));
@@ -63,17 +163,76 @@
         IMU.readAccel();
         while(!IMU.gyroAvailable());
         IMU.readGyro();
-        pc.printf("\nIMU Temperature = %f C\n\r",25.0 + IMU.temperature/16.0);
-        pc.printf("        X axis    Y axis    Z axis\n\r");
-        pc.printf("gyro:  %9f %9f %9f in deg/s\n\r", IMU.calcGyro(IMU.gx), IMU.calcGyro(IMU.gy), IMU.calcGyro(IMU.gz));
-        pc.printf("accel: %9f %9f %9f in Gs\n\r", IMU.calcAccel(IMU.ax), IMU.calcAccel(IMU.ay), IMU.calcAccel(IMU.az));
-        pc.printf("mag:   %9f %9f %9f in gauss\n\r", IMU.calcMag(IMU.mx), IMU.calcMag(IMU.my), IMU.calcMag(IMU.mz));
+        //pc.printf("\nIMU Temperature = %f C\n\r",25.0 + IMU.temperature/16.0);
+        //pc.printf("        X axis    Y axis    Z axis\n\r");
+        //pc.printf("gyro:  %9f %9f %9f in deg/s\n\r", IMU.calcGyro(IMU.gx), IMU.calcGyro(IMU.gy), IMU.calcGyro(IMU.gz));
+        //pc.printf("accel: %9f %9f %9f in Gs\n\r", IMU.calcAccel(IMU.ax), IMU.calcAccel(IMU.ay), IMU.calcAccel(IMU.az));
+        //pc.printf("mag:   %9f %9f %9f in gauss\n\r", IMU.calcMag(IMU.mx), IMU.calcMag(IMU.my), IMU.calcMag(IMU.mz));
         printAttitude(IMU.calcAccel(IMU.ax), IMU.calcAccel(IMU.ay), IMU.calcAccel(IMU.az), IMU.calcMag(IMU.mx),
                       IMU.calcMag(IMU.my), IMU.calcMag(IMU.mz));
-        myled = 1;
-        wait(0.5);
-        myled = 0;
-        wait(0.5);
+                      
+        // The gestures are read by setting base values once the pushbutton is press and once there is a certain deviation from those base values a specific gesture can be determined
+        
+        // Set Base Values
+        if (flag == true){
+            flag = false;
+            Pitch = pitch;
+            Roll = roll;
+        }
+        
+        //Pause Track 
+        if (Pitch-pitch >= 20){
+            myled1 = 1; 
+            if (music_playing == true){
+                pc.putc('p'); // pause character
+                sWav.pausePlay();
+                music_playing = false;
+            }
+            wait(.5);
+        }
+        else myled1 = 0;
+        
+        //Play Track 
+        if (pitch-Pitch >= 20){
+             myled2 = 1;
+             if (music_playing == false){
+                 pc.putc('P'); // Play character
+                 sWav.pausePlay();
+                 music_playing = true;
+                }
+            wait(.5);
+        }
+        else myled2 = 0;
+        
+        // Restart Track
+        if (Roll-roll >= 20){
+            myled3 = 1;
+            if (music_playing == true){
+                pc.putc('b'); // Restart Track character
+                sWav.rewindTrack();
+            }
+            wait(.5);
+        }
+        else myled3 = 0;
+        
+        //Next Track
+        if (roll-Roll >= 20){
+            myled4 = 1;
+            wait(.5);
+            if (music_playing == true){
+                pc.putc('n');
+                sWav.nextTrack();  
+            }
+            wait(.5);
+        }
+        else myled4 = 0;
+        
     }
-}
+    else {
+        flag = true; myled1 = 0; myled2 = 0; myled3 = 0; myled4 = 0;
+    }
+    
+}// end while loop
+ 
+}// end main