View source for IR control guide

IR Control Guide
== Introduction ==
The HIFI DAC/ DIGI expansion board specific for Raspberry Pi. It adopts the I2S interface rather than the USB port.It can build up online HIFI Player with Audio Player System(eg: volumio, xbmc and so on). 
The two output interface can connect with external Amplifier appliances, which can get rids of big consumption of PC, slowly power on/off, big power noise and so on.

<font color="#FF0000">
More  updated detail please refer to [[Raspberry Pi IR Control Expansion Board]]
</font>

==Tutorial ==
1. First Preparation: Burn in volumio system and install HIFI expansion board

* Start up Raspberry Pi, and log in via online SSH method. (User: pi  password: Raspberry)

* Update and install lirc softwarem, and perform the following command:

 ''sudo apt-get update''
 ''sudo apt-get install lirc''

[[File:DAC1.jpg|400px]]

[[File:DAC2.jpg|400px]]

2. Edit config.txt and add configuration. 

<font color="#FF0000">PS: For the those expansion board such as [[DAC II]], [[DAC+]], [[DiGi+]] or [[Stepper/Motor/Servo Robot Expansion Board SKU:418460]], only exist Receiver no launcher, and gpio_in_pin=26 (GPIO PIN)</font>

''sudo sudo nano /boot/config.txt''

Add the following content to config.txt

''dtoverlay=lirc-rpi,gpio_in_pin=26''

[[File:DAC3.png|400px]]

<font color="#FF0000">'''Notice: The volumio version under 1.55 please refer to the below step 2 !!!''' </font>

2. Edit Modules, and add configuration.

(DIGI NoIR receiver for Raspberry Pi Model B Board=18; DAC+ receiver for Raspberry Pi B+/ 2B Board=26; DIGI+ receiver for Raspberry Pi B+/ 2B Board=26; )

''sudo nano /etc/modules''

Add the two line content to modules

 ''lirc_dev''
 ''lirc_rpi gpio_in_pin=18''

[[File:DAC4.jpg|400px]]

3. Edit the LRIC configuration file to realize the NoIR function

sudo nano /etc/lirc/hardware.conf

Revise the following content

LIRCD_ARGS=”–uinput”

DRIVER=”default”

DEVICE=”/dev/lirc0″

MODULES=”lirc_rpi”

Note: The ”–uinput”，means two "-"

4. Perform “sudo reboot” and reboot Raspberry Pi,and enable the NoIR function.

[[File:DAC5_(1).jpg|400px]]

If it shows like the picture that it' s ok.

5. Record Button

 sudo /etc/init.d/lirc stop
 sudo irrecord -n -d /dev/lirc0 ~/lircd.conf

Record the remote controller according to the tips. Record separately"pause", “nextsong”，“prevsong”，“stop”，“volumeup”，“volumedown”\

[[File:DAC5_(2).jpg|400px]]

Cover the relative files about lirc software with recorded ~/lircd.conf file

''sudo cp ~/lircd.conf /etc/lirc/lircd.conf''

6. Start up lirc software

''sudo /etc/init.d/lirc start''

[[File:DAC6.jpg|400px]]

7. Review recording and perform the command

''irw''

Then press the separate recording button

[[File:DAC7.jpg|400px]]

8. Edit “.lircrc”，and perform the command 

''sudo pico ~/.lircrc''

[[File:DAC7.jpg|400px]]


Add the content to the file:

begin
         prog = irexec
         button = pause
         config = mpc toggle
end
begin
        prog = irexec
        button = nextsong
        config = mpc next;mpc play
end
begin
        prog = irexec
        button = prevsong
        config = mpc prev;mpc play
end
begin
        prog = irexec
        button = stop
        config = mpc stop
end
begin
        prog = irexec
        button = volumeup
        config = mpc volume +1
end
begin
        prog = irexec
        button = volumedown
        config = mpc volume -1
end

[[File:DAC9.jpg|400px]]

<font color="#FF0000">'''Note: You could refer to the mpc command, add the button and function you need.'''（http://linux.die.net/man/1/mpc）</font>

9. Perform the following command to control volumio

''irexec -d''

10. Edit file rc.local，make the NoIR function enable when start up volumio, and perform the command

''sudo nano /etc/rc.local''

Add the content in front of the exit0

''(sleep 3;
sudo -u volumio irexec -d
)&''

[[File:DAC10.png|400px]]

Exit and save, then reboot to realize the NoIR function.

== Documents ==
http://player.youku.com/player.php/sid/XNzI2MDQ5ODI0/v.swf