Diff: main.cpp

Revision:

0:36e81c32e784

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Mar 14 17:18:53 2016 +0000
@@ -0,0 +1,285 @@
+#include "mbed.h"
+#include "PinDetect.h"
+#include "SDFileSystem.h"
+#include "uLCD_4DGL.h"
+#include "wave_player.h"
+#include "Motor.h"
+#include <vector>
+#include <string>
+//SDfile
+SDFileSystem sd(p5, p6, p7, p8, p9, "sd"); //SD card
+//Pushbuttons
+PinDetect pbStop(p17);
+//LEDS and Bluetooth Serial Pins
+BusOut myled(LED1,LED2,LED3,LED4);
+Serial blue(p13,p14); //tx, rx
+
+//Motor
+Motor m(p21, p22, p23); // pwm, fwd, rev
+Motor m2(p26, p25, p24);
+
+
+//uLCD
+uLCD_4DGL uLCD(p28, p27, p29);
+//Wave Player
+AnalogOut DACout(p18);
+wave_player waver(&DACout);
+int pbPlays = 1;
+//Create Music State
+enum musicStateType {START, WAIT, WAIT2, LIST,REVERSE, NEXT, PLAY};
+FILE *wave_file;
+musicStateType musicState = START;
+//Callback Functions
+void pbUp_hit_callback (void)
+{
+    switch (musicState)
+    {
+    case WAIT:
+        musicState = LIST;
+        break;
+    case WAIT2:   
+        musicState = REVERSE;
+        break;
+    }
+}
+ 
+void pbDown_hit_callback (void)
+{
+    switch (musicState)
+    {
+    case WAIT:
+        musicState = LIST;
+        break;
+    case WAIT2:
+        musicState = NEXT;
+        break; 
+    }
+}
+
+void pbPlay_hit_callback (void)
+{
+    switch (musicState)
+    {
+    case WAIT:
+        musicState = LIST;
+        break;
+    case WAIT2:   
+        musicState = PLAY;
+        break;
+    case PLAY:
+        pbPlays = 0;
+        break;
+    }
+}
+
+vector<string> filenames; //filenames are stored in a vector string
+void read_file_names(char *dir)
+{
+DIR *dp;
+struct dirent *dirp;
+dp = opendir(dir);
+//read all directory and file names in current directory into filename vector
+while((dirp = readdir(dp)) != NULL) {
+    filenames.push_back(string(dirp->d_name));
+    }
+ }
+
+int main()
+{
+    //Setup for song stop pushbutton
+    pbStop.mode(PullUp);
+    wait(0.1);
+    pbStop.attach_deasserted(&pbPlay_hit_callback);
+    pbStop.setSampleFrequency();
+    //intialize uLCD
+    uLCD.display_control(PORTRAIT);
+    uLCD.cls();
+    uLCD.baudrate(BAUD_3000000);
+    uLCD.background_color(BLACK);
+    //initialize variables
+    char bnum=0;
+    char bhit=0;
+    while(sd.SD_inserted() == false) {
+      uLCD.cls();
+      uLCD.printf("Insert SD Card!\n");
+      wait(0.5);
+    }
+    int i = 0;
+    vector<string>::iterator it=filenames.begin();
+    vector<string>::iterator ittemp=filenames.begin();  
+    //While loop for music state. state is initialized to Start 
+    //and waits until a button is pressed to go to the music LIST state.   
+    while (1) 
+    {   
+        switch (musicState)
+        {
+        case START:
+            {
+            read_file_names("/sd/myMusic");
+            it = filenames.begin();
+            ittemp = filenames.begin();
+            uLCD.cls();
+            uLCD.locate(0,0);
+            uLCD.printf("MBED Party Bus!!!\n\n");
+            uLCD.printf("Press Key to Start");
+            musicState = WAIT;
+            break;
+            }
+        case LIST:
+            {
+            pbPlays = 1;
+            // read file names into vector of strings
+            uLCD.cls();
+            // print filename strings from vector using an iterator
+            for(it = ittemp;it < filenames.end(); it++) 
+            {   
+            uLCD.printf("%s\n\r", (*it).substr(0, (*it).length()-4).c_str());
+                        }
+            }
+            musicState = WAIT2;
+            break;
+        //Case for next song in list
+        case NEXT:
+            {
+            if(ittemp == filenames.end())
+            {ittemp = filenames.begin();
+            musicState = LIST;}
+            else
+            {ittemp = ittemp++;
+            musicState = LIST;}
+            break;
+            }
+        //Case for previous song in list
+        case REVERSE:    
+            {
+                if(ittemp == filenames.begin())
+                {ittemp = filenames.begin();
+                musicState = LIST;
+                }
+                else
+                {ittemp = ittemp--;
+                musicState = LIST;}
+                break;
+            }
+        //Case to play selected song
+        case PLAY:
+            {
+            uLCD.cls();
+            uLCD.printf("%s\n\r", (*ittemp).substr(0, (*ittemp).length()-4).c_str());
+            uLCD.printf("Now Playing");
+            string filename = "/sd/myMusic/";
+            filename = filename + (*ittemp);
+            //If statements below deteremine which song is playing and what album artwork to show on uLCD screen
+            if(filename == "/sd/myMusic/badboys2.wav"){
+            uLCD.media_init();
+            uLCD.set_sector_address(0x0000, 0x0000);
+            uLCD.display_image(0,0);
+            }
+            if(filename == "/sd/myMusic/Childish_3005.wav"){
+            uLCD.media_init();
+            uLCD.set_sector_address(0x0000, 0x0041);
+            uLCD.display_image(0,0);
+            }
+            if(filename == "/sd/myMusic/Drake.wav"){
+            uLCD.media_init();
+            uLCD.set_sector_address(0x0000, 0x0082);
+            uLCD.display_image(0,0);
+            }
+            if(filename == "/sd/myMusic/Chase.wav"){
+            uLCD.media_init();
+            uLCD.set_sector_address(0x0000, 0x00C3);
+            uLCD.display_image(0,0);
+            }
+            if(filename == "/sd/myMusic/Kanye.wav"){
+            uLCD.media_init();
+            uLCD.set_sector_address(0x0000, 0x0104);
+            uLCD.display_image(0,0);
+            }
+            //Start up motor for robot. Left motor speed is faster because of weight on shadowbot(Can be changed). 
+            m.speed(-0.4); 
+            m2.speed(-0.55); 
+            wave_file=fopen(filename.c_str(), "r");
+            //Play song
+            waver.play(wave_file, pbPlays);        
+            fclose(wave_file);
+            //Turn off robot motors
+            m.speed(0);
+            m2.speed(0);  
+            //Return to music LIST
+            musicState = LIST;
+            break;
+            }
+        case WAIT:
+            i++;
+            //Commands for intial wait. The bluetooth commands for up, down, and right all change the music state to the LIST at startup
+            if (blue.getc()=='!') {
+            if (blue.getc()=='B') { //button data packet
+                bnum = blue.getc(); //button number
+                bhit = blue.getc(); //1=hit, 0=release
+                if (blue.getc()==char(~('!' + 'B' + bnum + bhit))) { //checksum OK?
+                    myled = bnum - '0'; //current button number will appear on LEDs
+                    switch (bnum) {
+                        case '5': //button 5 up arrow
+                            if (bhit=='1') {
+                                //add hit code here
+                            } else {
+                                 pbUp_hit_callback();
+                            }
+                            break;
+                        case '6': //button 6 down arrow
+                            if (bhit=='1') {
+                                //add hit code here
+                            } else {
+                                pbDown_hit_callback();//add release code here
+                            }
+                            break;
+                        case '8': //button 8 right arrow
+                            if (bhit=='1') {
+                                //add hit code here
+                            } else {
+                                pbPlay_hit_callback();//add release code here
+                            }
+                            break;
+                    }
+                }
+            }} 
+            break;
+        case WAIT2:
+        if (blue.getc()=='!') {
+            //Second wait function moves up and down in list with bluetooth commands. Right ble button plays the song here
+            if (blue.getc()=='B') { //button data packet
+                bnum = blue.getc(); //button number
+                bhit = blue.getc(); //1=hit, 0=release
+                if (blue.getc()==char(~('!' + 'B' + bnum + bhit))) { //checksum OK?
+                    myled = bnum - '0'; //current button number will appear on LEDs
+                    switch (bnum) {
+                        case '5': //button 5 up arrow
+                            if (bhit=='1') {
+                                //add hit code here
+                            } else {
+                                 pbUp_hit_callback();
+                            }
+                            break;
+                        case '6': //button 6 down arrow
+                            if (bhit=='1') {
+                                //add hit code here
+                            } else {
+                                pbDown_hit_callback();//add release code here
+                            }
+                            break;
+                        case '8': //button 8 right arrow
+                            if (bhit=='1') {
+                                //add hit code here
+                            } else {
+                                pbPlay_hit_callback();//add release code here
+                            }
+                            break;
+                    }
+                }
+            }} 
+            i++;
+            break;
+        }
+    }
+}
+