Ajay Elango / Mbed 2 deprecated final_mini_project

Integrated Music Player (Basic Drums & Piano)

Dependencies:   4DGL-uLCD-SE mbed

Fork of MPR121_Demo by jim hamblen

main.cpp@1:2af7b5d46614, 2014-03-23 (annotated)

Committer:
ajayke
Date:
Sun Mar 23 07:18:02 2014 +0000
Revision:
1:2af7b5d46614
Parent:
0:e09703934ff4 
Integrated Music Player

Who changed what in which revision?

UserRevisionLine numberNew contents of line
4180_1 0:e09703934ff4 1 /*
4180_1 0:e09703934ff4 2 Copyright (c) 2011 Anthony Buckton (abuckton [at] blackink [dot} net {dot} au)
4180_1 0:e09703934ff4 3
4180_1 0:e09703934ff4 4 Permission is hereby granted, free of charge, to any person obtaining a copy
4180_1 0:e09703934ff4 5 of this software and associated documentation files (the "Software"), to deal
4180_1 0:e09703934ff4 6 in the Software without restriction, including without limitation the rights
4180_1 0:e09703934ff4 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
4180_1 0:e09703934ff4 8 copies of the Software, and to permit persons to whom the Software is
4180_1 0:e09703934ff4 9 furnished to do so, subject to the following conditions:
4180_1 0:e09703934ff4 10
4180_1 0:e09703934ff4 11 The above copyright notice and this permission notice shall be included in
4180_1 0:e09703934ff4 12 all copies or substantial portions of the Software.
4180_1 0:e09703934ff4 13
4180_1 0:e09703934ff4 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
4180_1 0:e09703934ff4 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
4180_1 0:e09703934ff4 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
4180_1 0:e09703934ff4 17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
4180_1 0:e09703934ff4 18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
4180_1 0:e09703934ff4 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
4180_1 0:e09703934ff4 20 THE SOFTWARE.
4180_1 0:e09703934ff4 21 */
4180_1 0:e09703934ff4 22
4180_1 0:e09703934ff4 23 #include <mbed.h>
4180_1 0:e09703934ff4 24 #include <string>
4180_1 0:e09703934ff4 25 #include <list>
ajayke 1:2af7b5d46614 26 #include "uLCD_4DGL.h"
4180_1 0:e09703934ff4 27 #include <mpr121.h>
4180_1 0:e09703934ff4 28
4180_1 0:e09703934ff4 29 InterruptIn interrupt(p26);
ajayke 1:2af7b5d46614 30 InterruptIn interrupt1(p25);
ajayke 1:2af7b5d46614 31 uLCD_4DGL uLCD(p13,p14,p11);
ajayke 1:2af7b5d46614 32 I2C i2c(p9, p10);
ajayke 1:2af7b5d46614 33 I2C i2c1(p28, p27);
ajayke 1:2af7b5d46614 34 Mpr121 mpr121(&i2c, Mpr121::ADD_VSS);
ajayke 1:2af7b5d46614 35 Mpr121 mpr121_1(&i2c1, Mpr121::ADD_VSS);
ajayke 1:2af7b5d46614 36 PwmOut speaker(p21);
ajayke 1:2af7b5d46614 37 PwmOut speaker1(p22);
4180_1 0:e09703934ff4 38 Serial pc(USBTX, USBRX);
4180_1 0:e09703934ff4 39
ajayke 1:2af7b5d46614 40 int key_code=0;
ajayke 1:2af7b5d46614 41 int key_code1=0;
ajayke 1:2af7b5d46614 42 float beats = 0;
ajayke 1:2af7b5d46614 43 float beats_var = 0;
ajayke 1:2af7b5d46614 44 void pianoInterrupt() {
ajayke 1:2af7b5d46614 45
4180_1 0:e09703934ff4 46 int i=0;
4180_1 0:e09703934ff4 47 int value=mpr121.read(0x00);
4180_1 0:e09703934ff4 48 value +=mpr121.read(0x01)<<8;
ajayke 1:2af7b5d46614 49
4180_1 0:e09703934ff4 50 i=0;
ajayke 1:2af7b5d46614 51
4180_1 0:e09703934ff4 52 for (i=0; i<12; i++) {
4180_1 0:e09703934ff4 53 if (((value>>i)&0x01)==1) key_code=i+1;
4180_1 0:e09703934ff4 54 }
4180_1 0:e09703934ff4 55 }
4180_1 0:e09703934ff4 56
ajayke 1:2af7b5d46614 57 void drumsInterrupt() {
ajayke 1:2af7b5d46614 58
ajayke 1:2af7b5d46614 59 int i=0;
ajayke 1:2af7b5d46614 60 int value=mpr121_1.read(0x00);
ajayke 1:2af7b5d46614 61 value +=mpr121_1.read(0x01)<<8;
ajayke 1:2af7b5d46614 62 i=0;
ajayke 1:2af7b5d46614 63
ajayke 1:2af7b5d46614 64
ajayke 1:2af7b5d46614 65 for (i=0; i<12; i++) {
ajayke 1:2af7b5d46614 66 if (((value>>i)&0x01)==1) key_code1=i+1;
ajayke 1:2af7b5d46614 67 }
ajayke 1:2af7b5d46614 68
ajayke 1:2af7b5d46614 69 }
4180_1 0:e09703934ff4 70
ajayke 1:2af7b5d46614 71 void piano() {
ajayke 1:2af7b5d46614 72 speaker.period(1.0/ (float (key_code*75.1) ) );
ajayke 1:2af7b5d46614 73 speaker = float(key_code*2)/50.0;
ajayke 1:2af7b5d46614 74 wait(.5);
ajayke 1:2af7b5d46614 75 }
4180_1 0:e09703934ff4 76
ajayke 1:2af7b5d46614 77 void drums() {
4180_1 0:e09703934ff4 78
ajayke 1:2af7b5d46614 79 /*speaker1.period(1.0/ (float (key_code1*5.1) ) );
ajayke 1:2af7b5d46614 80 speaker1 = float(key_code1*7)/ 30.0;*/
ajayke 1:2af7b5d46614 81 wait(.5);
ajayke 1:2af7b5d46614 82
ajayke 1:2af7b5d46614 83 switch(key_code1) {
ajayke 1:2af7b5d46614 84 case 1:
ajayke 1:2af7b5d46614 85 beats = 1.0/ ( float (10.1) );
ajayke 1:2af7b5d46614 86 speaker1.period( beats );
ajayke 1:2af7b5d46614 87 speaker1.pulsewidth( beats );
ajayke 1:2af7b5d46614 88 speaker1 = 0.009;
ajayke 1:2af7b5d46614 89 break;
ajayke 1:2af7b5d46614 90 case 2:
ajayke 1:2af7b5d46614 91 beats = 1.0/ ( float (15.1) );
ajayke 1:2af7b5d46614 92 speaker1.period( beats );
ajayke 1:2af7b5d46614 93
ajayke 1:2af7b5d46614 94 speaker1 = 0.9;
ajayke 1:2af7b5d46614 95 break;
ajayke 1:2af7b5d46614 96 case 3:
ajayke 1:2af7b5d46614 97 beats = 1.0/ ( float (20.1) );
ajayke 1:2af7b5d46614 98 speaker1.period( beats );
ajayke 1:2af7b5d46614 99 speaker1 = 0.9;
ajayke 1:2af7b5d46614 100 break;
ajayke 1:2af7b5d46614 101 case 4:
ajayke 1:2af7b5d46614 102 beats = 1.0/ ( float (25.1) );
ajayke 1:2af7b5d46614 103 speaker1.period( beats );
ajayke 1:2af7b5d46614 104 speaker1 = float(key_code1*2)/50.0;
ajayke 1:2af7b5d46614 105 break;
ajayke 1:2af7b5d46614 106 case 5:
ajayke 1:2af7b5d46614 107 beats = 1.0/ ( float (30.1) );
ajayke 1:2af7b5d46614 108 speaker1.period( beats );
ajayke 1:2af7b5d46614 109 speaker1 = float(key_code1*2)/50.0;
ajayke 1:2af7b5d46614 110 break;
ajayke 1:2af7b5d46614 111 case 6:
ajayke 1:2af7b5d46614 112 beats = 1.0/ ( float (33.1) );
ajayke 1:2af7b5d46614 113 speaker1.period( beats );
ajayke 1:2af7b5d46614 114 speaker1 = float(key_code1*2)/50.0;
ajayke 1:2af7b5d46614 115 break;
ajayke 1:2af7b5d46614 116 case 7:
ajayke 1:2af7b5d46614 117 beats = 1.0/ ( float (40.1) );
ajayke 1:2af7b5d46614 118 speaker1.period( beats );
ajayke 1:2af7b5d46614 119
ajayke 1:2af7b5d46614 120 speaker1 = float(key_code1*2)/50.0;
ajayke 1:2af7b5d46614 121 break;
ajayke 1:2af7b5d46614 122 case 8:
ajayke 1:2af7b5d46614 123 beats = 1.0/ ( float (45.1) );
ajayke 1:2af7b5d46614 124 speaker1.period( beats );
ajayke 1:2af7b5d46614 125 speaker1 = 0.9;
ajayke 1:2af7b5d46614 126 break;
ajayke 1:2af7b5d46614 127 case 9:
ajayke 1:2af7b5d46614 128 beats = 1.0/ ( float (8.1) );
ajayke 1:2af7b5d46614 129 speaker1.period( beats );
ajayke 1:2af7b5d46614 130 speaker1 = float(key_code1*2)/50.0;
ajayke 1:2af7b5d46614 131 break;
ajayke 1:2af7b5d46614 132 case 10:
ajayke 1:2af7b5d46614 133 beats = 1.0/ ( float (5.1) );
ajayke 1:2af7b5d46614 134 speaker1.period( beats );
ajayke 1:2af7b5d46614 135
ajayke 1:2af7b5d46614 136 speaker1 = float(key_code1*2)/50.0;
ajayke 1:2af7b5d46614 137 break;
ajayke 1:2af7b5d46614 138 case 11:
ajayke 1:2af7b5d46614 139 beats = 1.0/ ( float (30.1) );
ajayke 1:2af7b5d46614 140 speaker1.period( beats );
ajayke 1:2af7b5d46614 141 speaker1.pulsewidth( 1.0/ ( float (10.1) ) );
ajayke 1:2af7b5d46614 142 speaker1 = float(key_code1*2)/50.0;
ajayke 1:2af7b5d46614 143 break;
ajayke 1:2af7b5d46614 144 case 12:
ajayke 1:2af7b5d46614 145 beats = 1.0/ ( float (10.1) );
ajayke 1:2af7b5d46614 146 speaker1.period( beats );
ajayke 1:2af7b5d46614 147 speaker1.pulsewidth( 0.9 );
ajayke 1:2af7b5d46614 148 speaker1 = float(key_code1*2)/50.0;
ajayke 1:2af7b5d46614 149 break;
ajayke 1:2af7b5d46614 150
ajayke 1:2af7b5d46614 151 default:
ajayke 1:2af7b5d46614 152 break;
ajayke 1:2af7b5d46614 153 }
ajayke 1:2af7b5d46614 154
ajayke 1:2af7b5d46614 155 }
ajayke 1:2af7b5d46614 156 int d;
ajayke 1:2af7b5d46614 157 void LCD_Display() {
ajayke 1:2af7b5d46614 158 uLCD.cls();
ajayke 1:2af7b5d46614 159 uLCD.locate(0,0);
ajayke 1:2af7b5d46614 160
ajayke 1:2af7b5d46614 161
ajayke 1:2af7b5d46614 162
ajayke 1:2af7b5d46614 163
ajayke 1:2af7b5d46614 164 uLCD.color(GREEN);
ajayke 1:2af7b5d46614 165 uLCD.text_bold(ON);
ajayke 1:2af7b5d46614 166
ajayke 1:2af7b5d46614 167 uLCD.printf("MUSIC ");
ajayke 1:2af7b5d46614 168 uLCD.text_bold(ON);
ajayke 1:2af7b5d46614 169 uLCD.printf("PLAYER" );
ajayke 1:2af7b5d46614 170 uLCD.printf("\n\n" );
ajayke 1:2af7b5d46614 171
ajayke 1:2af7b5d46614 172 uLCD.text_bold(OFF);
ajayke 1:2af7b5d46614 173 uLCD.color(WHITE);
ajayke 1:2af7b5d46614 174 uLCD.textbackground_color(BLUE);
ajayke 1:2af7b5d46614 175 uLCD.printf("\nPiano\nKey Pressed %D", key_code );
ajayke 1:2af7b5d46614 176 uLCD.color(GREEN);
ajayke 1:2af7b5d46614 177 uLCD.textbackground_color(BLACK);
ajayke 1:2af7b5d46614 178 uLCD.printf("\n\n" );
ajayke 1:2af7b5d46614 179 uLCD.printf("Timbre: %0.2f", (float) speaker );
ajayke 1:2af7b5d46614 180 uLCD.printf("\nPitch: %.2f", (float (key_code*75.1)) );
ajayke 1:2af7b5d46614 181 uLCD.printf("\n" );
ajayke 1:2af7b5d46614 182 uLCD.color(WHITE);
ajayke 1:2af7b5d46614 183 uLCD.textbackground_color(BLUE);
ajayke 1:2af7b5d46614 184 uLCD.printf("\nDrums\nKey Pressed %D", key_code1 );
ajayke 1:2af7b5d46614 185 uLCD.color(GREEN);
ajayke 1:2af7b5d46614 186 uLCD.textbackground_color(BLACK);
ajayke 1:2af7b5d46614 187 uLCD.printf("\n\n" );
ajayke 1:2af7b5d46614 188 uLCD.printf("Loudness: %0.2f", (float) speaker1 );
ajayke 1:2af7b5d46614 189 beats_var = (beats == 0) ? 0 : (1.0 / (float)beats );
ajayke 1:2af7b5d46614 190 d = (int) beats_var;
ajayke 1:2af7b5d46614 191 uLCD.printf("\nBeats/Sec: %d", d );
ajayke 1:2af7b5d46614 192 uLCD.printf("\n" );
ajayke 1:2af7b5d46614 193 uLCD.printf("\n\n" );
ajayke 1:2af7b5d46614 194
ajayke 1:2af7b5d46614 195 }
4180_1 0:e09703934ff4 196
ajayke 1:2af7b5d46614 197 int main() {
ajayke 1:2af7b5d46614 198
ajayke 1:2af7b5d46614 199
ajayke 1:2af7b5d46614 200 interrupt.fall(&pianoInterrupt);
ajayke 1:2af7b5d46614 201 interrupt.mode(PullUp);
ajayke 1:2af7b5d46614 202 interrupt1.fall(&drumsInterrupt);
ajayke 1:2af7b5d46614 203 interrupt1.mode(PullUp);
4180_1 0:e09703934ff4 204
ajayke 1:2af7b5d46614 205 uLCD.background_color(BLACK);
ajayke 1:2af7b5d46614 206 uLCD.cls();
ajayke 1:2af7b5d46614 207 uLCD.color(WHITE);
ajayke 1:2af7b5d46614 208 uLCD.textbackground_color(BLUE);
ajayke 1:2af7b5d46614 209 uLCD.set_font(FONT_7X8);
ajayke 1:2af7b5d46614 210 //uLCD.text_mode(OPAQUE);
ajayke 1:2af7b5d46614 211 uLCD.text_mode(TRANSPARENT);
ajayke 1:2af7b5d46614 212 while (1) {
ajayke 1:2af7b5d46614 213
ajayke 1:2af7b5d46614 214 piano();
ajayke 1:2af7b5d46614 215 drums();
ajayke 1:2af7b5d46614 216 LCD_Display();
ajayke 1:2af7b5d46614 217 }
4180_1 0:e09703934ff4 218
4180_1 0:e09703934ff4 219
4180_1 0:e09703934ff4 220 }
4180_1 0:e09703934ff4 221
4180_1 0:e09703934ff4 222
4180_1 0:e09703934ff4 223