234円で音の出るオモチャをつくる【Arduino mp3再生】

#define SENSOR 0

#include <SoftwareSerial.h>  
#include <DFRobotDFPlayerMini.h>

SoftwareSerial mySoftwareSerial(10, 11); // RX, TX  
DFRobotDFPlayerMini myDFPlayer;  
void printDetail(uint8\_t type, int value);

void setup()  
{

pinMode(SENSOR, INPUT);

mySoftwareSerial.begin(9600);  
Serial.begin(115200);

Serial.println();  
Serial.println(F(“DFRobot DFPlayer Mini Demo”));  
Serial.println(F(“Initializing DFPlayer … (May take 3~5 seconds)”));

if (!myDFPlayer.begin(mySoftwareSerial)) { //Use softwareSerial to communicate with mp3.  
Serial.println(F(“Unable to begin:”));  
Serial.println(F(“1.Please recheck the connection!”));  
Serial.println(F(“2.Please insert the SD card!”));  
while(true);  
}  
Serial.println(F(“DFPlayer Mini online.”));

myDFPlayer.volume(20); //Set volume value. From 0 to 30  
myDFPlayer.play(1); //Play the first mp3  
}

void loop()  
{  
int i;  
i = analogRead(SENSOR);  
// Serial.print(i, DEC);  
// Serial.print(“\\n”);

if(i < 2 && myDFPlayer.readType() == DFPlayerPlayFinished){  
myDFPlayer.play(1);  
delay(6000);  
}

if (myDFPlayer.available()) {  
printDetail(myDFPlayer.readType(), myDFPlayer.read()); //Print the detail message from DFPlayer to handle different errors and states.  
}  
}

void printDetail(uint8\_t type, int value){  
switch (type) {  
case TimeOut:  
Serial.println(F(“Time Out!”));  
break;  
case WrongStack:  
Serial.println(F(“Stack Wrong!”));  
break;  
case DFPlayerCardInserted:  
Serial.println(F(“Card Inserted!”));  
break;  
case DFPlayerCardRemoved:  
Serial.println(F(“Card Removed!”));  
break;  
case DFPlayerCardOnline:  
Serial.println(F(“Card Online!”));  
break;  
case DFPlayerPlayFinished:  
Serial.print(F(“Number:”));  
Serial.print(value);  
Serial.println(F(” Play Finished!”));  
// myDFPlayer.play(1); //Play the first mp3  
break;  
case DFPlayerError:  
Serial.print(F(“DFPlayerError:”));  
switch (value) {  
case Busy:  
Serial.println(F(“Card not found”));  
break;  
case Sleeping:  
Serial.println(F(“Sleeping”));  
break;  
case SerialWrongStack:  
Serial.println(F(“Get Wrong Stack”));  
break;  
case CheckSumNotMatch:  
Serial.println(F(“Check Sum Not Match”));  
break;  
case FileIndexOut:  
Serial.println(F(“File Index Out of Bound”));  
break;  
case FileMismatch:  
Serial.println(F(“Cannot Find File”));  
break;  
case Advertise:  
Serial.println(F(“In Advertise”));  
break;  
default:  
break;  
}  
break;  
default:  
break;  
}  
}