Difference between revisions of "Music Box(Joystick)"

Overview

Build a music box, can play the music files in the TF card, select the song with

Joystic rocker, and the volume of operation.

Schematic

Rocker XY direction movement detection by reading the analog value to judge. At

the same judge to stay the length of time to select the control mode.

Equipment

• Other Equipment：
  • 2 Speaker
  • 1 Batteray
  • 1 TF card

Code

• Setup 1：Connect the CoreUSB module to your computer and then start the

Arduino IDE.

• Setup 2：Select Files>Examples>mCokie>_203_MusicBox_Joystick

• Setup 3：Click upload button to upload program. When "Done Uploading"

appears, the program should have successfully been uplloaded into the CoreUSB.

Software Debuge

• ” audio.h” Audio lib file
• Audio module Serial uses D2, D3

#include <SoftwareSerial.h>

SoftwareSerial mySerial(2, 3); // RX, TX

#define AUDIO_PORT mySerial

• Detection rocker value

int uiStep()         //Change songs
{
  if (analogRead(A0) < 100)  //Y-up
  {
    delay(50);       //50 ms delay
    if (analogRead(A0) < 100)      //
      return 1;      //return 1
  }
  if (analogRead(A1) < 100)    //
  {
    delay(50);       //50 ms delay
    if (analogRead(A1) < 100)  //X-Right
      return 2;      //return 2
  }
  if (analogRead(A1) > 900)    //X-Left
  {
    delay(50);       //50 ms delay
    if (analogRead(A1) > 900)  //
      return 3;      //Return to 3
  }
  return 0;
}

• OLED displays interface and user can change it.

 //The main interface can be freely changed. 
void draw()
{
  setFont_L;

  u8g.setPrintPos(4, 16);
  u8g.print("Music_sta:");
  u8g.print(music_status ? "play" : "pause");

  u8g.setPrintPos(4, 16 * 2);
  u8g.print("Music_vol:");
  u8g.print(music_vol);
  u8g.print("/30");
  u8g.setPrintPos(4, 16 * 3);
  u8g.print("Music_num:");
  u8g.print(music_num);
  u8g.print("/");
  u8g.print(music_num_MAX);
  u8g.setPrintPos(4, 16 * 4);
  u8g.print("....Microduino....");
  //u8g.print(rtc.formatTime(RTCC_TIME_HMS));
}

Hardware Buildup

• Setup 1：Using the above diagram as reference, connect the sensors into the

corrensponding ports on the Hub module.

• Setup 2：Insert a micro SD card into the Audio Shield.

• Setup 3：Stack the Audio Shield and Audio modules.Even though your micro SD

card may be able to store many songs, the program we provide only supports up

to 9 songs.

• Setup4：Connect the speakers into the Amplifier module.

• Setup5：Stack the Amplifier, Audio, and Audio Shield modules.

• Setup6：Connect the activated Battery module to your Battery Management

module.

• Setup7：Stack all the modules together in any order you like (Except three

Audio modules, They must be together). Congratulations, you have finished

building the circuit!

How to Operate

Result

Control music playback, pause and change songs by using Joystick. You can also build a nice look LEGO Shell.

Video