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AudioZero
end()
Description
Stops the timer used to write an audio signal read from the SD card to DAC0 and writes 0.
Syntax
AudioZero.end();
Returns
nothing
Example
/*
Simple Audio Player for Arduino Zero Demonstrates the use of the Audio library for the Arduino Zero Hardware required :
* Arduino shield with a SD card on CS4
* A sound file named "test.wav" in the root directory of the SD card
* An audio amplifier to connect to the DAC0 and ground
* A speaker to connect to the audio amplifier
Arturo Guadalupi <a.guadalupi@arduino.cc>
Angelo Scialabba <a.scialabba@arduino.cc>
Claudio Indellicati <c.indellicati@arduino.cc> This example code is in the public domain http://arduino.cc/en/Tutorial/SimpleAudioPlayerZero*/
#include <SD.h>
#include <SPI.h>
#include <AudioZero.h>
void
setup
(
)
{
// debug output at 115200 baud
Serial.
begin
(
115200
)
;
// setup SD-card
Serial.
print
(
"Initializing SD card..."
)
;
if
(
!SD.
begin
(
4
)
)
{
Serial.
println
(
" failed!"
)
;
return
;
}
Serial.
println
(
" done."
)
;
// hi-speed SPI transfers
SPI.
setClockDivider
(
4
)
;
// 88200 sample rate
AudioZero.
begin
(
88200
)
;
}
void
loop
(
)
{
int count
=
0
;
// open wave file from sdcard
File myFile
= SD.
open
(
"test.wav"
)
;
if
(
!myFile
)
{
// if the file didn't open, print an error and stop
Serial.
println
(
"error opening test.wav"
)
;
while
(
true
)
;
}
Serial.
print
(
"Playing"
)
;
// until the file is not finished
AudioZero.
play
(myFile
)
;
AudioZero.
end
(
)
;
Serial.
println
(
"End of file. Thank you for listening!"
)
;
while
(
true
)
;
}
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The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.