Kevin Lee
IMU-controlled mp3 player
Dependencies: 4DGL-uLCD-SE MMA8452 PinDetect SDFileSystem mbed wave_player
Revision 0:b051af62369a, committed 2016-05-02
- Comitter:
- kthlee
- Date:
- Mon May 02 08:00:51 2016 +0000
- Commit message:
- s
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/4DGL-uLCD-SE.lib Mon May 02 08:00:51 2016 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/4180_1/code/4DGL-uLCD-SE/#2cb1845d7681
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MMA8452.lib Mon May 02 08:00:51 2016 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/ashleymills/code/MMA8452/#a92a632a0cc7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/PinDetect.lib Mon May 02 08:00:51 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/AjK/code/PinDetect/#cb3afc45028b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Mon May 02 08:00:51 2016 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/mbed_official/code/SDFileSystem/#7b35d1709458
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon May 02 08:00:51 2016 +0000
@@ -0,0 +1,362 @@
+#include "mbed.h"
+#include "MMA8452.h"
+#include "uLCD_4DGL.h"
+#include "SDFileSystem.h"
+#include "wave_player.h"
+#include "PinDetect.h"
+#include <vector>
+#include <string>
+#include <algorithm>
+
+Serial pc(USBTX, USBRX);
+SDFileSystem sd(p5, p6, p7, p8, "sd"); //SD card DI, DO, SCK, CS
+uLCD_4DGL uLCD(p9, p10, p11); // create a global uLCD object rx, tx, reset
+MMA8452 acc(p28, p27, 100000); // SDA, SCL, rate
+AnalogOut DACout(p18);
+PwmOut PWMout(p21);
+wave_player waver(&DACout,&PWMout);
+PinDetect pb1(p30);
+
+
+enum modes_t {MainMenu, ListArtists, ListSongs, ListSongsByArtist, PlaySong, PauseSong};
+modes_t Mode;
+volatile unsigned short currentPointer = 0;
+char filePath[] = "/sd/myMusic/";
+char location;
+vector<string> filenames;
+vector<string> artistNames;
+vector<string> songNames;
+vector<string> playList;
+FILE *wave_file;
+string artistChosen = "";
+string songChosen = "";
+int x_value, y_value, z_value;
+bool playing = true;
+float volume = 0.5f;
+float volume_change = 1;
+
+void VolumeUp() {
+ volume_change += 0.05;
+ if (volume_change >= 1.5) {
+ volume_change = 2;
+ }
+}
+void VolumeDown() {
+ volume_change -= 0.05;
+ if (volume_change <= 0.0) {
+ volume_change = 0.0;
+ }
+}
+
+void pb1_hit_callback()
+{
+
+ if (Mode == PauseSong) {
+ Mode = MainMenu;
+ } else {
+ playing = !playing;
+ }
+}
+
+void playSong(string filename) //play a song of given filename
+{
+ wave_file = fopen(filename.c_str(),"r");
+ waver.play(wave_file);
+ fclose(wave_file);
+}
+
+
+int aa = 0;
+
+void read_file_names(char *dir) {
+ DIR *dp;
+ struct dirent *dirp;
+ dp = opendir(dir);
+ filenames.clear();
+ while((dirp = readdir(dp)) != NULL) {
+ filenames.push_back(string(dirp->d_name));
+ }
+}
+
+void printArtists(vector<string> inputList) {
+ uLCD.cls();
+ uLCD.locate(0,0);
+ uLCD.printf("LIST OF ARTISTS:");
+ for (int x = 0; x < inputList.size();x++)
+ {
+ size_t index = inputList[x].find("-");
+ uLCD.locate(2,x+3);
+ uLCD.printf(inputList[x].substr(0,index).c_str());
+ }
+ uLCD.locate(0,currentPointer+3);
+ uLCD.printf("->");
+}
+
+void printSongs(vector<string> inputList) {
+ uLCD.cls();
+ uLCD.locate(0,0);
+ uLCD.printf("LIST OF SONGS:");
+ for (int x = 0; x < inputList.size();x++)
+ {
+ size_t index = inputList[x].find("-");
+ uLCD.locate(2,x+3);
+ uLCD.printf(inputList[x].substr(index+2,inputList[x].length()).c_str());
+ }
+ uLCD.locate(0,currentPointer+3);
+ uLCD.printf("->");
+}
+
+vector<string> getArtistList(vector<string> filenames) {
+ vector<string> returnList;
+ bool mark = false;
+
+ for (int i = 0; i < filenames.size(); i++) {
+ size_t index = filenames[i].find("-");
+ for (int j = i + 1; j < filenames.size(); j++) {
+ if (filenames[i].substr(0,index).compare(filenames[j].substr(0,index)) == 0) {
+ mark = true;
+ }
+ }
+
+ if (mark == false) {
+ returnList.push_back(filenames[i]);
+ }
+
+ mark = false;
+ }
+
+ return returnList;
+}
+
+vector<string> getSongList(vector<string> filenames) {
+ vector<string> returnList;
+ for (int i = 0; i < filenames.size(); i++) {
+ size_t index = filenames[i].find("-");
+ returnList.push_back(filenames[i]);
+ }
+ return returnList;
+}
+
+vector<string> getSongsByArtistList(vector<string> filenames, string artistName) {
+ vector<string> returnList;
+ for (int i = 0; i < filenames.size(); i++) {
+ size_t index = filenames[i].find("-");
+ if (filenames[i].find(artistName) != string::npos) {
+ returnList.push_back(filenames[i]);
+ }
+ }
+ return returnList;
+}
+
+
+int main() {
+
+ pb1.mode(PullUp);
+ pb1.attach_deasserted(&pb1_hit_callback);
+ pb1.setSampleFrequency();
+ Mode = MainMenu;
+ acc.activate();
+
+ PWMout.period(1.0/400000.0);
+
+ while (1) {
+ if (Mode == MainMenu) {
+ uLCD.cls();
+ uLCD.locate(0,0);
+ uLCD.printf("Please Choose:");
+ uLCD.locate(0,7);
+ uLCD.printf("Artists");
+ uLCD.locate(12,7);
+ uLCD.printf("Songs");
+ while (x_value < 700 && x_value > -700) {
+ acc.readXCount(&x_value);
+ if (x_value > 700) {
+ Mode = ListArtists; //+X for artists
+ }
+ if (x_value < -700) {
+ Mode = ListSongs; //-X for Songs
+ }
+ }
+
+ }
+
+ if (Mode == ListArtists) {
+ read_file_names("/sd/myMusic");
+ uLCD.cls();
+ artistNames = getArtistList(filenames);
+ printArtists(artistNames); //same thing as printSongs(); but for artists
+
+ while ( x_value < 700 || x_value > -700 || y_value < 700 || y_value > -700)
+ {
+
+ acc.readYCount(&y_value);
+ acc.readXCount(&x_value);
+
+ if (y_value > 700) {
+ Mode = MainMenu; //+Y for main menu.
+ break;
+ }
+ if (y_value < -700) {
+ Mode = ListSongsByArtist; //-Y to list songs by artists
+ size_t index2 = artistNames[currentPointer].find("-");
+ artistChosen = artistNames[currentPointer].substr(0,index2);
+ break;
+ }
+ if (x_value > 700) {
+ if (currentPointer <= 0) {
+ currentPointer--;
+ break;
+ }
+ }
+ if (x_value <-700) {
+ if (currentPointer != artistNames.size()) {
+ currentPointer++;
+ break;
+ }
+ }
+ }
+ }
+
+ if (Mode == ListSongs) {
+ uLCD.cls();
+ read_file_names("/sd/myMusic");
+ songNames = getSongList(filenames);
+ printSongs(songNames);
+ uLCD.locate(0,0);
+
+ while ( x_value < 700 || x_value > -700 || y_value < 700 || y_value > -700)
+ {
+
+ acc.readXCount(&x_value);
+ acc.readYCount(&y_value);
+
+ if (y_value > 700) {
+ Mode = MainMenu; //+Y to go back to the main menu.
+ break;
+ }
+ if (y_value < -700) {
+ playList = songNames;
+ Mode = PlaySong; //-Y to play the song.
+ break;
+ }
+ if (x_value > 700) {
+ if (currentPointer != 0) {
+ currentPointer--;
+ break;
+ }
+ }
+ if (x_value <-700) {
+ if (currentPointer != songNames.size()) {
+ currentPointer++;
+ break;
+ }
+ }
+ //
+// //Debug Status
+// uLCD.locate(9,9);
+// uLCD.printf("X: %d", x_value);
+// uLCD.locate(9,10);
+// uLCD.printf("Y: %d", y_value);
+ }
+ }
+
+ if (Mode == ListSongsByArtist) {
+ uLCD.cls();
+ read_file_names("/sd/myMusic");
+ songNames = getSongsByArtistList(filenames, artistChosen);
+ printSongs(songNames);
+ uLCD.locate(0,0);
+ uLCD.printf("ListSongsByArtist:");
+
+ while ( x_value < 700 || x_value > -700 || y_value < 700 || y_value > -700)
+ {
+
+ acc.readXCount(&x_value);
+ acc.readYCount(&y_value);
+
+ if (y_value > 700) {
+ Mode = ListArtists; //+Y to go back to list artists
+ break;
+ }
+ if (y_value < -700) {
+ playList = songNames;
+ Mode = PlaySong; //-Y to play the song.
+ break;
+ }
+ if (x_value > 700) {
+ if (currentPointer >= 0) {
+ currentPointer--; ////this decreases the song counter (used for selection)
+ break;
+ }
+ }
+ if (x_value <-700) {
+ if (currentPointer <= songNames.size()) {
+ currentPointer++; ////this increases the song counter
+ break;
+ }
+ }
+ }
+ }
+
+ if (Mode == PlaySong) {
+ uLCD.cls();
+ size_t index3 = playList[currentPointer].find("-");
+ uLCD.locate(0,2);
+ uLCD.printf("Now Playing:");
+ uLCD.locate(2,4);
+ uLCD.printf(playList[currentPointer].substr(0,index3).c_str());
+ uLCD.locate(2,6);
+ uLCD.printf(playList[currentPointer].substr(index3+2, playList[currentPointer].length()-4).c_str());
+ playing = true;
+ if (playing) {
+ playSong("/sd/myMusic/" + playList[currentPointer]);
+ }
+ Mode = PauseSong;
+ }
+
+ if (Mode == PauseSong) {
+ uLCD.cls();
+ uLCD.locate(2,2);
+ uLCD.printf("Song Stopped.");
+ uLCD.locate(2,4);
+ uLCD.printf("Volume: %d", (int)(volume_change * 100/150*100) );
+
+ while ( x_value < 700 || x_value > -700 || y_value < 700 || y_value > -700)
+ {
+
+ acc.readXCount(&x_value);
+ acc.readYCount(&y_value);
+
+ if (x_value > 700) {
+ VolumeUp();
+ break;
+ }
+ if (x_value < -700) {
+ VolumeDown();
+ break;
+ }
+ if (y_value > 700) {
+ //Change
+ currentPointer++;
+ songChosen = playList[currentPointer];
+ Mode = PlaySong;
+ break;
+ }
+ if (y_value <-700) {
+
+ currentPointer--;
+ songChosen = playList[currentPointer];
+ //Change to previous song
+ Mode = PlaySong;
+ break;
+ }
+
+ if (Mode == MainMenu) {
+ break;
+ }
+ }
+
+ }
+
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon May 02 08:00:51 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/082adc85693f \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/wave_player.lib Mon May 02 08:00:51 2016 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/users/kthlee/code/wave_player/#44a41c9ff2d4