Grove MP3 v2 Library
MP3Player_KT403A.cpp@0:52ad25e0a9d0, 2018-05-13 (annotated)
- Committer:
- fmanzano_dtk
- Date:
- Sun May 13 18:08:26 2018 +0000
- Revision:
- 0:52ad25e0a9d0
Initial version;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
fmanzano_dtk | 0:52ad25e0a9d0 | 1 | /* |
fmanzano_dtk | 0:52ad25e0a9d0 | 2 | * MP3Player_KT403A.cpp |
fmanzano_dtk | 0:52ad25e0a9d0 | 3 | * A library for Grove-Serial MP3 Player V2.0 |
fmanzano_dtk | 0:52ad25e0a9d0 | 4 | * |
fmanzano_dtk | 0:52ad25e0a9d0 | 5 | * Copyright (c) 2015 seeed technology inc. |
fmanzano_dtk | 0:52ad25e0a9d0 | 6 | * Website : www.seeed.cc |
fmanzano_dtk | 0:52ad25e0a9d0 | 7 | * Author : Wuruibin |
fmanzano_dtk | 0:52ad25e0a9d0 | 8 | * Created Time: Dec 2015 |
fmanzano_dtk | 0:52ad25e0a9d0 | 9 | * Modified Time: |
fmanzano_dtk | 0:52ad25e0a9d0 | 10 | * |
fmanzano_dtk | 0:52ad25e0a9d0 | 11 | * The MIT License (MIT) |
fmanzano_dtk | 0:52ad25e0a9d0 | 12 | * |
fmanzano_dtk | 0:52ad25e0a9d0 | 13 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
fmanzano_dtk | 0:52ad25e0a9d0 | 14 | * of this software and associated documentation files (the "Software"), to deal |
fmanzano_dtk | 0:52ad25e0a9d0 | 15 | * in the Software without restriction, including without limitation the rights |
fmanzano_dtk | 0:52ad25e0a9d0 | 16 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
fmanzano_dtk | 0:52ad25e0a9d0 | 17 | * copies of the Software, and to permit persons to whom the Software is |
fmanzano_dtk | 0:52ad25e0a9d0 | 18 | * furnished to do so, subject to the following conditions: |
fmanzano_dtk | 0:52ad25e0a9d0 | 19 | * |
fmanzano_dtk | 0:52ad25e0a9d0 | 20 | * The above copyright notice and this permission notice shall be included in |
fmanzano_dtk | 0:52ad25e0a9d0 | 21 | * all copies or substantial portions of the Software. |
fmanzano_dtk | 0:52ad25e0a9d0 | 22 | * |
fmanzano_dtk | 0:52ad25e0a9d0 | 23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
fmanzano_dtk | 0:52ad25e0a9d0 | 24 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
fmanzano_dtk | 0:52ad25e0a9d0 | 25 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
fmanzano_dtk | 0:52ad25e0a9d0 | 26 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
fmanzano_dtk | 0:52ad25e0a9d0 | 27 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
fmanzano_dtk | 0:52ad25e0a9d0 | 28 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
fmanzano_dtk | 0:52ad25e0a9d0 | 29 | * THE SOFTWARE. |
fmanzano_dtk | 0:52ad25e0a9d0 | 30 | */ |
fmanzano_dtk | 0:52ad25e0a9d0 | 31 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 32 | #include <Arduino.h> |
fmanzano_dtk | 0:52ad25e0a9d0 | 33 | #include "MP3Player_KT403A.h" |
fmanzano_dtk | 0:52ad25e0a9d0 | 34 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 35 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 36 | // Note: You must define a SoftwareSerial class object that the name must be mp3, |
fmanzano_dtk | 0:52ad25e0a9d0 | 37 | // but you can change the pin number according to the actual situation. |
fmanzano_dtk | 0:52ad25e0a9d0 | 38 | //SoftwareSerial mp3(2, 3); // define in the demo file |
fmanzano_dtk | 0:52ad25e0a9d0 | 39 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 40 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 41 | /**************************************************************** |
fmanzano_dtk | 0:52ad25e0a9d0 | 42 | * Function Name: SelectPlayerDevice |
fmanzano_dtk | 0:52ad25e0a9d0 | 43 | * Description: Select the player device, U DISK or SD card. |
fmanzano_dtk | 0:52ad25e0a9d0 | 44 | * Parameters: 0x01:U DISK; 0x02:SD card |
fmanzano_dtk | 0:52ad25e0a9d0 | 45 | * Return: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 46 | ****************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 47 | void SelectPlayerDevice(uint8_t device) |
fmanzano_dtk | 0:52ad25e0a9d0 | 48 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 49 | mp3.write(0x7E); |
fmanzano_dtk | 0:52ad25e0a9d0 | 50 | mp3.write(0xFF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 51 | mp3.write(0x06); |
fmanzano_dtk | 0:52ad25e0a9d0 | 52 | mp3.write(0x09); |
fmanzano_dtk | 0:52ad25e0a9d0 | 53 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 54 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 55 | mp3.write(device); |
fmanzano_dtk | 0:52ad25e0a9d0 | 56 | mp3.write(0xEF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 57 | delay(200); |
fmanzano_dtk | 0:52ad25e0a9d0 | 58 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 59 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 60 | /**************************************************************** |
fmanzano_dtk | 0:52ad25e0a9d0 | 61 | * Function Name: SpecifyMusicPlay |
fmanzano_dtk | 0:52ad25e0a9d0 | 62 | * Description: Specify the music index to play, the index is decided by the input sequence of the music. |
fmanzano_dtk | 0:52ad25e0a9d0 | 63 | * Parameters: index: the music index: 0-65535. |
fmanzano_dtk | 0:52ad25e0a9d0 | 64 | * Return: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 65 | ****************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 66 | void SpecifyMusicPlay(uint16_t index) |
fmanzano_dtk | 0:52ad25e0a9d0 | 67 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 68 | uint8_t hbyte, lbyte; |
fmanzano_dtk | 0:52ad25e0a9d0 | 69 | hbyte = index / 256; |
fmanzano_dtk | 0:52ad25e0a9d0 | 70 | lbyte = index % 256; |
fmanzano_dtk | 0:52ad25e0a9d0 | 71 | mp3.write(0x7E); |
fmanzano_dtk | 0:52ad25e0a9d0 | 72 | mp3.write(0xFF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 73 | mp3.write(0x06); |
fmanzano_dtk | 0:52ad25e0a9d0 | 74 | mp3.write(0x03); |
fmanzano_dtk | 0:52ad25e0a9d0 | 75 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 76 | mp3.write(uint8_t(hbyte)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 77 | mp3.write(uint8_t(lbyte)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 78 | mp3.write(0xEF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 79 | delay(10); |
fmanzano_dtk | 0:52ad25e0a9d0 | 80 | // return true; |
fmanzano_dtk | 0:52ad25e0a9d0 | 81 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 82 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 83 | /************************************************************* |
fmanzano_dtk | 0:52ad25e0a9d0 | 84 | * Function Name: PlayMP3folder |
fmanzano_dtk | 0:52ad25e0a9d0 | 85 | * Description: Plays the music specified in the MP3 folder. |
fmanzano_dtk | 0:52ad25e0a9d0 | 86 | * First create a folder named MP3. Then rename the music file to 0001.mp3,0002.mp3, and so on. Save these music files in the MP3 folder. |
fmanzano_dtk | 0:52ad25e0a9d0 | 87 | * The name must be Decimal. |
fmanzano_dtk | 0:52ad25e0a9d0 | 88 | * Parameters: index, the name of MP3 flie. |
fmanzano_dtk | 0:52ad25e0a9d0 | 89 | * Return: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 90 | **************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 91 | void PlayMP3folder(uint16_t index) |
fmanzano_dtk | 0:52ad25e0a9d0 | 92 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 93 | uint8_t hbyte, lbyte; |
fmanzano_dtk | 0:52ad25e0a9d0 | 94 | hbyte = index / 256; |
fmanzano_dtk | 0:52ad25e0a9d0 | 95 | lbyte = index % 256; |
fmanzano_dtk | 0:52ad25e0a9d0 | 96 | mp3.write(0x7E); |
fmanzano_dtk | 0:52ad25e0a9d0 | 97 | mp3.write(0xFF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 98 | mp3.write(0x06); |
fmanzano_dtk | 0:52ad25e0a9d0 | 99 | mp3.write(0x12); |
fmanzano_dtk | 0:52ad25e0a9d0 | 100 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 101 | mp3.write(uint8_t(hbyte)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 102 | mp3.write(uint8_t(lbyte)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 103 | mp3.write(0xEF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 104 | delay(10); |
fmanzano_dtk | 0:52ad25e0a9d0 | 105 | // return true; |
fmanzano_dtk | 0:52ad25e0a9d0 | 106 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 107 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 108 | /**************************************************************** |
fmanzano_dtk | 0:52ad25e0a9d0 | 109 | * Function Name: SpecifyfolderPlay |
fmanzano_dtk | 0:52ad25e0a9d0 | 110 | * Description: Specify the music index in the folder to play, the index is decided by the input sequence of the music. |
fmanzano_dtk | 0:52ad25e0a9d0 | 111 | * Parameters: folder: folder name, must be number; index: the music index. |
fmanzano_dtk | 0:52ad25e0a9d0 | 112 | * Return: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 113 | ****************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 114 | void SpecifyfolderPlay(uint8_t folder, uint8_t index) |
fmanzano_dtk | 0:52ad25e0a9d0 | 115 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 116 | mp3.write(0x7E); |
fmanzano_dtk | 0:52ad25e0a9d0 | 117 | mp3.write(0xFF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 118 | mp3.write(0x06); |
fmanzano_dtk | 0:52ad25e0a9d0 | 119 | mp3.write(0x0F); |
fmanzano_dtk | 0:52ad25e0a9d0 | 120 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 121 | mp3.write(uint8_t(folder)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 122 | mp3.write(uint8_t(index)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 123 | mp3.write(0xEF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 124 | delay(10); |
fmanzano_dtk | 0:52ad25e0a9d0 | 125 | // return true; |
fmanzano_dtk | 0:52ad25e0a9d0 | 126 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 127 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 128 | /**************************************************************** |
fmanzano_dtk | 0:52ad25e0a9d0 | 129 | * Function Name: PlayPause |
fmanzano_dtk | 0:52ad25e0a9d0 | 130 | * Description: Pause the MP3 player. |
fmanzano_dtk | 0:52ad25e0a9d0 | 131 | * Parameters: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 132 | * Return: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 133 | ****************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 134 | void PlayPause(void) |
fmanzano_dtk | 0:52ad25e0a9d0 | 135 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 136 | mp3.write(0x7E); |
fmanzano_dtk | 0:52ad25e0a9d0 | 137 | mp3.write(0xFF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 138 | mp3.write(0x06); |
fmanzano_dtk | 0:52ad25e0a9d0 | 139 | mp3.write(0x0E); |
fmanzano_dtk | 0:52ad25e0a9d0 | 140 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 141 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 142 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 143 | // mp3.write(0xFE); |
fmanzano_dtk | 0:52ad25e0a9d0 | 144 | // mp3.write(0xED); |
fmanzano_dtk | 0:52ad25e0a9d0 | 145 | mp3.write(0xEF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 146 | delay(20); |
fmanzano_dtk | 0:52ad25e0a9d0 | 147 | // return true; |
fmanzano_dtk | 0:52ad25e0a9d0 | 148 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 149 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 150 | /**************************************************************** |
fmanzano_dtk | 0:52ad25e0a9d0 | 151 | * Function Name: PlayResume |
fmanzano_dtk | 0:52ad25e0a9d0 | 152 | * Description: Resume the MP3 player. |
fmanzano_dtk | 0:52ad25e0a9d0 | 153 | * Parameters: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 154 | * Return: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 155 | ****************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 156 | void PlayResume(void) |
fmanzano_dtk | 0:52ad25e0a9d0 | 157 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 158 | mp3.write(0x7E); |
fmanzano_dtk | 0:52ad25e0a9d0 | 159 | mp3.write(0xFF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 160 | mp3.write(0x06); |
fmanzano_dtk | 0:52ad25e0a9d0 | 161 | mp3.write(0x0D); |
fmanzano_dtk | 0:52ad25e0a9d0 | 162 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 163 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 164 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 165 | // mp3.write(0xFE); |
fmanzano_dtk | 0:52ad25e0a9d0 | 166 | // mp3.write(0xEE); |
fmanzano_dtk | 0:52ad25e0a9d0 | 167 | mp3.write(0xEF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 168 | delay(20); |
fmanzano_dtk | 0:52ad25e0a9d0 | 169 | // return true; |
fmanzano_dtk | 0:52ad25e0a9d0 | 170 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 171 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 172 | /**************************************************************** |
fmanzano_dtk | 0:52ad25e0a9d0 | 173 | * Function Name: PlayNext |
fmanzano_dtk | 0:52ad25e0a9d0 | 174 | * Description: Play the next song. |
fmanzano_dtk | 0:52ad25e0a9d0 | 175 | * Parameters: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 176 | * Return: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 177 | ****************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 178 | void PlayNext(void) |
fmanzano_dtk | 0:52ad25e0a9d0 | 179 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 180 | mp3.write(0x7E); |
fmanzano_dtk | 0:52ad25e0a9d0 | 181 | mp3.write(0xFF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 182 | mp3.write(0x06); |
fmanzano_dtk | 0:52ad25e0a9d0 | 183 | mp3.write(0x01); |
fmanzano_dtk | 0:52ad25e0a9d0 | 184 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 185 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 186 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 187 | mp3.write(0xEF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 188 | delay(10); |
fmanzano_dtk | 0:52ad25e0a9d0 | 189 | // return true; |
fmanzano_dtk | 0:52ad25e0a9d0 | 190 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 191 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 192 | /**************************************************************** |
fmanzano_dtk | 0:52ad25e0a9d0 | 193 | * Function Name: PlayPrevious |
fmanzano_dtk | 0:52ad25e0a9d0 | 194 | * Description: Play the previous song. |
fmanzano_dtk | 0:52ad25e0a9d0 | 195 | * Parameters: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 196 | * Return: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 197 | ****************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 198 | void PlayPrevious(void) |
fmanzano_dtk | 0:52ad25e0a9d0 | 199 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 200 | mp3.write(0x7E); |
fmanzano_dtk | 0:52ad25e0a9d0 | 201 | mp3.write(0xFF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 202 | mp3.write(0x06); |
fmanzano_dtk | 0:52ad25e0a9d0 | 203 | mp3.write(0x02); |
fmanzano_dtk | 0:52ad25e0a9d0 | 204 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 205 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 206 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 207 | mp3.write(0xEF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 208 | delay(10); |
fmanzano_dtk | 0:52ad25e0a9d0 | 209 | // return true; |
fmanzano_dtk | 0:52ad25e0a9d0 | 210 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 211 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 212 | /**************************************************************** |
fmanzano_dtk | 0:52ad25e0a9d0 | 213 | * Function Name: PlayLoop |
fmanzano_dtk | 0:52ad25e0a9d0 | 214 | * Description: Play loop for all the songs. |
fmanzano_dtk | 0:52ad25e0a9d0 | 215 | * Parameters: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 216 | * Return: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 217 | ****************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 218 | void PlayLoop(void) |
fmanzano_dtk | 0:52ad25e0a9d0 | 219 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 220 | mp3.write(0x7E); |
fmanzano_dtk | 0:52ad25e0a9d0 | 221 | mp3.write(0xFF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 222 | mp3.write(0x06); |
fmanzano_dtk | 0:52ad25e0a9d0 | 223 | mp3.write(0x11); |
fmanzano_dtk | 0:52ad25e0a9d0 | 224 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 225 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 226 | mp3.write(0x01); |
fmanzano_dtk | 0:52ad25e0a9d0 | 227 | mp3.write(0xEF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 228 | delay(10); |
fmanzano_dtk | 0:52ad25e0a9d0 | 229 | // return true; |
fmanzano_dtk | 0:52ad25e0a9d0 | 230 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 231 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 232 | /**************************************************************** |
fmanzano_dtk | 0:52ad25e0a9d0 | 233 | * Function Name: SetVolume |
fmanzano_dtk | 0:52ad25e0a9d0 | 234 | * Description: Set the volume, the range is 0x00 to 0x1E. |
fmanzano_dtk | 0:52ad25e0a9d0 | 235 | * Parameters: volume: the range is 0x00 to 0x1E. |
fmanzano_dtk | 0:52ad25e0a9d0 | 236 | * Return: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 237 | ****************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 238 | void SetVolume(uint8_t volume) |
fmanzano_dtk | 0:52ad25e0a9d0 | 239 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 240 | mp3.write(0x7E); |
fmanzano_dtk | 0:52ad25e0a9d0 | 241 | mp3.write(0xFF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 242 | mp3.write(0x06); |
fmanzano_dtk | 0:52ad25e0a9d0 | 243 | mp3.write(0x06); |
fmanzano_dtk | 0:52ad25e0a9d0 | 244 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 245 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 246 | mp3.write(volume); |
fmanzano_dtk | 0:52ad25e0a9d0 | 247 | mp3.write(0xEF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 248 | delay(10); |
fmanzano_dtk | 0:52ad25e0a9d0 | 249 | // return true; |
fmanzano_dtk | 0:52ad25e0a9d0 | 250 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 251 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 252 | /**************************************************************** |
fmanzano_dtk | 0:52ad25e0a9d0 | 253 | * Function Name: IncreaseVolume |
fmanzano_dtk | 0:52ad25e0a9d0 | 254 | * Description: Increase the volume. |
fmanzano_dtk | 0:52ad25e0a9d0 | 255 | * Parameters: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 256 | * Return: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 257 | ****************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 258 | void IncreaseVolume(void) |
fmanzano_dtk | 0:52ad25e0a9d0 | 259 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 260 | mp3.write(0x7E); |
fmanzano_dtk | 0:52ad25e0a9d0 | 261 | mp3.write(0xFF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 262 | mp3.write(0x06); |
fmanzano_dtk | 0:52ad25e0a9d0 | 263 | mp3.write(0x04); |
fmanzano_dtk | 0:52ad25e0a9d0 | 264 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 265 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 266 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 267 | mp3.write(0xEF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 268 | delay(10); |
fmanzano_dtk | 0:52ad25e0a9d0 | 269 | // return true; |
fmanzano_dtk | 0:52ad25e0a9d0 | 270 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 271 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 272 | /**************************************************************** |
fmanzano_dtk | 0:52ad25e0a9d0 | 273 | * Function Name: DecreaseVolume |
fmanzano_dtk | 0:52ad25e0a9d0 | 274 | * Description: Decrease the volume. |
fmanzano_dtk | 0:52ad25e0a9d0 | 275 | * Parameters: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 276 | * Return: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 277 | ****************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 278 | void DecreaseVolume(void) |
fmanzano_dtk | 0:52ad25e0a9d0 | 279 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 280 | mp3.write(0x7E); |
fmanzano_dtk | 0:52ad25e0a9d0 | 281 | mp3.write(0xFF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 282 | mp3.write(0x06); |
fmanzano_dtk | 0:52ad25e0a9d0 | 283 | mp3.write(0x05); |
fmanzano_dtk | 0:52ad25e0a9d0 | 284 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 285 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 286 | mp3.write(uint8_t(0x00)); |
fmanzano_dtk | 0:52ad25e0a9d0 | 287 | mp3.write(0xEF); |
fmanzano_dtk | 0:52ad25e0a9d0 | 288 | delay(10); |
fmanzano_dtk | 0:52ad25e0a9d0 | 289 | // return true; |
fmanzano_dtk | 0:52ad25e0a9d0 | 290 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 291 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 292 | /**************************************************************** |
fmanzano_dtk | 0:52ad25e0a9d0 | 293 | * Function Name: printReturnedData |
fmanzano_dtk | 0:52ad25e0a9d0 | 294 | * Description: Print the returned data that sent from the Grove_Serial_MP3_Player. |
fmanzano_dtk | 0:52ad25e0a9d0 | 295 | * Parameters: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 296 | * Return: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 297 | ****************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 298 | void printReturnedData(void) |
fmanzano_dtk | 0:52ad25e0a9d0 | 299 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 300 | unsigned char c; |
fmanzano_dtk | 0:52ad25e0a9d0 | 301 | //check if there's any data sent from the Grove_Serial_MP3_Player |
fmanzano_dtk | 0:52ad25e0a9d0 | 302 | while(mp3.available()) |
fmanzano_dtk | 0:52ad25e0a9d0 | 303 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 304 | c = mp3.read(); |
fmanzano_dtk | 0:52ad25e0a9d0 | 305 | Serial.print("0x"); |
fmanzano_dtk | 0:52ad25e0a9d0 | 306 | Serial.print(c, HEX); |
fmanzano_dtk | 0:52ad25e0a9d0 | 307 | Serial.print(" "); |
fmanzano_dtk | 0:52ad25e0a9d0 | 308 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 309 | Serial.println(" "); |
fmanzano_dtk | 0:52ad25e0a9d0 | 310 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 311 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 312 | /**************************************************************** |
fmanzano_dtk | 0:52ad25e0a9d0 | 313 | * Function Name: QueryPlayStatus |
fmanzano_dtk | 0:52ad25e0a9d0 | 314 | * Description: Query play status. |
fmanzano_dtk | 0:52ad25e0a9d0 | 315 | * Parameters: none |
fmanzano_dtk | 0:52ad25e0a9d0 | 316 | * Return: 0: played out; 1: other. |
fmanzano_dtk | 0:52ad25e0a9d0 | 317 | * Usage: while(QueryPlayStatus() != 0); // Waiting to play out. |
fmanzano_dtk | 0:52ad25e0a9d0 | 318 | ****************************************************************/ |
fmanzano_dtk | 0:52ad25e0a9d0 | 319 | uint8_t QueryPlayStatus(void) |
fmanzano_dtk | 0:52ad25e0a9d0 | 320 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 321 | unsigned char c[10] = {0}; |
fmanzano_dtk | 0:52ad25e0a9d0 | 322 | uint8_t i = 0; |
fmanzano_dtk | 0:52ad25e0a9d0 | 323 | //check if there's any data sent from the Grove_Serial_MP3_Player |
fmanzano_dtk | 0:52ad25e0a9d0 | 324 | while(mp3.available()) |
fmanzano_dtk | 0:52ad25e0a9d0 | 325 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 326 | c[i] = mp3.read(); |
fmanzano_dtk | 0:52ad25e0a9d0 | 327 | i++; |
fmanzano_dtk | 0:52ad25e0a9d0 | 328 | delay(1); |
fmanzano_dtk | 0:52ad25e0a9d0 | 329 | if (i == 10) break; |
fmanzano_dtk | 0:52ad25e0a9d0 | 330 | // Serial.print(" 0x"); |
fmanzano_dtk | 0:52ad25e0a9d0 | 331 | // Serial.print(c[i], HEX); |
fmanzano_dtk | 0:52ad25e0a9d0 | 332 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 333 | // Serial.println(" "); |
fmanzano_dtk | 0:52ad25e0a9d0 | 334 | |
fmanzano_dtk | 0:52ad25e0a9d0 | 335 | if(c[3] == 0x3C || c[3] == 0x3D || c[3] == 0x3E) |
fmanzano_dtk | 0:52ad25e0a9d0 | 336 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 337 | return 0; |
fmanzano_dtk | 0:52ad25e0a9d0 | 338 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 339 | else |
fmanzano_dtk | 0:52ad25e0a9d0 | 340 | { |
fmanzano_dtk | 0:52ad25e0a9d0 | 341 | return 1; |
fmanzano_dtk | 0:52ad25e0a9d0 | 342 | } |
fmanzano_dtk | 0:52ad25e0a9d0 | 343 | } |