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RFID演奏音乐

引言：

Arduino做的各种应用广泛被开源硬件爱好者喜欢。今天给大家介绍一个互动性强的arduino RFID乐器，适合放松娱乐，这个项目利用了RFID和MP3模块，把从RFID采集的数据通过MP3模块播放特定的音符，从而带来适合少儿娱乐的互动音乐游戏。

第一步：展示内容

用的这个模块

这个是RFID的连线图

第三步：硬件搭建

序号	名称	数量
1	arduino uno	1
2	rfid模块rc522	1
3	rfid tag	7
4	DF MP3模块	1
5	8欧喇叭	1
6

第五步：

发一些硬件的图片。让人有个直观的认识

从arduino串口找到每个tag的编码。具体是打开arduino-实例文件-rfid-cardread，打开cardread文件并上传，之后用RFID扫描tag，然后在串口里查每个tag的编码。

在串口看扫描tag后的tag编码

第七部：连线图

第八部：代码部分的设计


复制代码

/*

 */
#include <SPI.h>
#include <MFRC522.h>
#include "Arduino.h"
#include "SoftwareSerial.h"

unsigned char order[4] = {0xAA,0x06,0x00,0xB0};

#define SS_PIN 10
#define RST_PIN 9

MFRC522 mfrc522(SS_PIN, RST_PIN);   // Create MFRC522 instance.
SoftwareSerial Serial1(7, 6); // RX, TX

//============SETUP================
void setup() 
{
  Serial1.begin(9600);
  volume(0x1E);//音量设置0x00-0x1E
  
  Serial.begin(115200);   // Initiate a serial communication
  SPI.begin();      // Initiate  SPI bus
  mfrc522.PCD_Init();   // Initiate MFRC522
  Serial.println("Approximate your card to the reader...");
  Serial.println();
}
 
void loop() 
{
  // Look for new cards
  if ( ! mfrc522.PICC_IsNewCardPresent()) 
  {
    return;
  }
  // Select one of the cards
  if ( ! mfrc522.PICC_ReadCardSerial()) 
  {
    return;
  }
  //Show UID on serial monitor
  Serial.print("UID tag :");
  String content= "";
  byte letter;
  for (byte i = 0; i < mfrc522.uid.size; i++) 
  {
     Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
     Serial.print(mfrc522.uid.uidByte[i], HEX);
     content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
     content.concat(String(mfrc522.uid.uidByte[i], HEX));
  }
  Serial.println();
  Serial.print("Message : ");
  content.toUpperCase();
  if (content.substring(1) == "69 E4 3C A3") //change here the UID of the card/cards that you want to give access
  {
    Serial.println("Authorized access");
    Serial.println();
    play(0x01);//指定播放:0x01-文件0001  
    delay(1000);
  }

 if (content.substring(1) == "67 33 7E 7A") //change here the UID of the card/cards that you want to give access
  {
    Serial.println("Authorized access");
    Serial.println();
    play(0x02);//指定播放:0x02-文件0002 
    delay(1000);
  }

  if (content.substring(1) == "D7 3F 7C 7B") //change here the UID of the card/cards that you want to give access
  {
    Serial.println("Authorized access");
    Serial.println();
    play(0x03);//指定播放:0x03-文件0003  
    delay(1000);
  }

  if (content.substring(1) == "F7 E6 51 7B") //change here the UID of the card/cards that you want to give access
  {
    Serial.println("Authorized access");
    Serial.println();
    play(0x04);//指定播放:0x04-文件0004 
    delay(1000);
  }

  if (content.substring(1) == "E7 B6 72 7B") //change here the UID of the card/cards that you want to give access
  {
    Serial.println("Authorized access");
    Serial.println();
    play(0x05);//指定播放:0x05-文件0005  
    delay(1000);
  }

  if (content.substring(1) == "37 18 84 7B") //change here the UID of the card/cards that you want to give access
  {
    Serial.println("Authorized access");
    Serial.println();
    play(0x06);//指定播放:0x06-文件0006
    delay(1000);
  }

   if (content.substring(1) == "87 2E 79 7A") //change here the UID of the card/cards that you want to give access
  {
    Serial.println("Authorized access");
    Serial.println();
    play(0x07);//指定播放:0x07-文件0007 
    delay(1000);
  }

 else   {
    Serial.println(" Access denied");
    delay(1000);
  }
} 
//==========FUNCTION==========
void play(unsigned char Track)
{
unsigned char play[6] = {0xAA,0x07,0x02,0x00,Track,Track+0xB3};//0xB3=0xAA+0x07+0x02+0x00,即最后一位为校验和
Serial1.write(play,6);
}
void volume( unsigned char vol)
{
unsigned char volume[5] = {0xAA,0x13,0x01,vol,vol+0xBE};//0xBE=0xAA+0x13+0x01,即最后一位为校验和
Serial1.write(volume,5);
}
复制代码