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Update tutorial examples

dds
PaulStoffregen 9 years ago
parent
commit
f6405adb1a
2 changed files with 108 additions and 2 deletions
  1. +14
    -2
      examples/Tutorial/Part_1_04_Blink_While_Playing/Part_1_04_Blink_While_Playing.ino
  2. +94
    -0
      examples/Tutorial/Part_1_05_Do_More_While_Playing/Part_1_05_Do_More_While_Playing.ino

+ 14
- 2
examples/Tutorial/Part_1_04_Blink_While_Playing/Part_1_04_Blink_While_Playing.ino View File

playSdWav1.play("SDTEST3.WAV"); playSdWav1.play("SDTEST3.WAV");
delay(10); // wait for library to parse WAV info delay(10); // wait for library to parse WAV info
} }
// blink LED and print info while playing
digitalWrite(13, HIGH);
// print the play time offset
Serial.print("Playing, now at "); Serial.print("Playing, now at ");
Serial.print(playSdWav1.positionMillis()); Serial.print(playSdWav1.positionMillis());
Serial.println(" ms"); Serial.println(" ms");

// blink LED and print info while playing
digitalWrite(13, HIGH);
delay(250); delay(250);
digitalWrite(13, LOW); digitalWrite(13, LOW);
delay(250); delay(250);

// read the knob position (analog input A2)
/*
int knob = analogRead(A2);
float vol = (float)knob / 1280.0;
sgtl5000_1.volume(vol);
Serial.print("volume = ");
Serial.println(vol);
*/
} }





+ 94
- 0
examples/Tutorial/Part_1_05_Do_More_While_Playing/Part_1_05_Do_More_While_Playing.ino View File

// Advanced Microcontroller-based Audio Workshop
//
// Part 1-5: Respond to Pushbuttons & Volume Knob
//
// Do more while playing. Monitor pushbuttons and adjust
// the volume. Whe the buttons are pressed, stop playing
// the current file and skip to the next or previous.

#include <Audio.h>
#include <Wire.h>
#include <SPI.h>
#include <SD.h>
#include <SerialFlash.h>
#include <Bounce.h>

AudioPlaySdWav playSdWav1;
AudioOutputI2S i2s1;
AudioConnection patchCord1(playSdWav1, 0, i2s1, 0);
AudioConnection patchCord2(playSdWav1, 1, i2s1, 1);
AudioControlSGTL5000 sgtl5000_1;

Bounce button0 = Bounce(0, 15);
Bounce button2 = Bounce(2, 15); // 15 = 15 ms debounce time

void setup() {
Serial.begin(9600);
AudioMemory(8);
sgtl5000_1.enable();
sgtl5000_1.volume(0.5);
SPI.setMOSI(7);
SPI.setSCK(14);
if (!(SD.begin(10))) {
while (1) {
Serial.println("Unable to access the SD card");
delay(500);
}
}
pinMode(0, INPUT_PULLUP);
pinMode(2, INPUT_PULLUP);
delay(1000);
}

int filenumber = 0; // while file to play

const char * filelist[4] = {
"SDTEST1.WAV", "SDTEST2.WAV", "SDTEST3.WAV", "SDTEST4.WAV"
};

elapsedMillis blinkTime;

void loop() {
if (playSdWav1.isPlaying() == false) {
const char *filename = filelist[filenumber];
filenumber = filenumber + 1;
if (filenumber >= 4) filenumber = 0;
Serial.print("Start playing ");
Serial.println(filename);
playSdWav1.play(filename);
delay(10); // wait for library to parse WAV info
}
// blink the LED without delays
if (blinkTime < 250) {
digitalWrite(13, LOW);
} else if (blinkTime < 500) {
digitalWrite(13, HIGH);
} else {
blinkTime = 0; // start blink cycle over again
}
// read pushbuttons
button0.update();
if (button0.fallingEdge()) {
playSdWav1.stop();
}
button2.update();
if (button2.fallingEdge()) {
playSdWav1.stop();
filenumber = filenumber - 2;
if (filenumber < 0) filenumber = filenumber + 4;
}
// read the knob position (analog input A2)
int knob = analogRead(A2);
float vol = (float)knob / 1280.0;
sgtl5000_1.volume(vol);
//Serial.print("volume = ");
//Serial.println(vol);
}





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