Código Parcial
#include <SPI.h>
#include <SD.h>
#include <TMRpcm.h>
#define pinoChipSelectSD 53
TMRpcm audioCartaoSD;
const int SENSOR_LM35 = A0;
const float CONVERSAO_CELSIUS = 0.49;
int leituraSensor;
float temperaturaAtual, temperaturaAnterior;
String valorTemp;
void setup(){
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
Serial.print("Initializing SD card...");
if (!SD.begin(4)) {
Serial.println("initialization failed!");
while (1);
}
Serial.println("initialization done.");
pinMode(SENSOR_LM35, INPUT);
audioCartaoSD.speakerPin = 11;
}
void loop(){
temperaturaAtual = analogRead(SENSOR_LM35) * CONVERSAO_CELSIUS;
if(temperaturaAtual != temperaturaAnterior) {
temperaturaAnterior = temperaturaAtual;
valorTemp = String(int(temperaturaAtual));
valorTemp.concat(".wav");
char nomeArquivo[valorTemp.length( ) + 1];
valorTemp.toCharArray(nomeArquivo, sizeof(nomeArquivo));
audioCartaoSD.play("temp.wav");
while(audioCartaoSD.isPlaying());
audioCartaoSD.play(nomeArquivo);
while(audioCartaoSD.isPlaying());
audioCartaoSD.play("graus.wav");
Serial.println(temperaturaAtual);
delay(5000);
}
}