IR Receiver & Remote support

XploD

Now I understand this part, but my LIRC still doesn't work, and there are no complete tutorials for this. den_hr gave me instructions how he did it but it doesn't work for me.

yjo

How about this page? It's the record of my trial.
http://yjo-blog.blogspot.com/2015/02/runeaudio-03.html

Sorry for incomplete English, and somewhat incomplete description.
But I can successfully use an IR remote controller with a very cheap (ca. $1) additional hardware.

yjo

XploD

yjo wroteHow about this page? It's the record of my trial.
http://yjo-blog.blogspot.com/2015/02/runeaudio-03.html

Sorry for incomplete English, and somewhat incomplete description.
But I can successfully use an IR remote controller with a very cheap (ca. $1) additional hardware.

yjo

Hello, thanks for your answer! I followed your steps but still nothing, obviously I'm doing something wrong. I will try with clean RuneAudio install and I'll try to use the same port for connecting GPIO as you. Irrecord is working (I can successfully record my remote), also mode2 -d /dev/lirc0 is working (I can see output in terminal when pressing keys on remote) but after I finish with everything, irw doesn't show anything and also I created lircrc file and I wrote a script which will echo "Hello world" when I press KEY_PLAY but it doesn't work.

But at least, following your guide for shutdown button, I modified the script a little bit and made myself buttons for controlling playback (play, pause, next, previous, stop, volume down and volume up) and also a status LED (it's on while mpc is playing, or off otherwise).

Connections:

BUTTON - GPIO PIN
----------------------------
Previous - 22
Next - 9
Play - 24
Stop - 25
Volume Down - 23
Volume Up - 10

Code:

#!/bin/sh

echo "22" > /sys/class/gpio/export
echo "9" > /sys/class/gpio/export
echo "23" > /sys/class/gpio/export
echo "10" > /sys/class/gpio/export
echo "24" > /sys/class/gpio/export
echo "25" > /sys/class/gpio/export

prev=0
next=0
play=0
vup=0
vdn=0
stop=0

counter=0

state=0


loop(){
	while :
	do
		counter=$((counter + 1))

		if [ $counter -eq 2 ]
		then
			counter=0

     			data=`cat /sys/class/gpio/gpio22/value`
			if [ "$data" -eq "1" ] ; then
				if [ $prev -eq 0 ] ; then
					mpc prev
					prev=1
					echo "Previous song"
				fi
			else
				prev=0
			fi

			data=`cat /sys/class/gpio/gpio9/value`
			if [ "$data" -eq "1" ] ; then
				if [ $next -eq 0 ] ; then
					mpc next
					next=1
					echo "Next song"
				fi
			else
				next=0
			fi

			data=`cat /sys/class/gpio/gpio24/value`
			if [ "$data" -eq "1" ] ; then
				if [ $play -eq 0 ] ; then
					play=1
					
					if [ $state -eq 1 ]
					then
						mpc pause
						echo "Pause"
					else
						mpc play
						echo "Play"
					fi
				fi
			else
				play=0
			fi

			data=`cat /sys/class/gpio/gpio25/value`
			if [ "$data" -eq "1" ] ; then
				if [ $stop -eq 0 ] ; then
					mpc stop
					stop=1
					echo "Stop"
				fi
			else
				stop=0
			fi 
		
			data=`cat /sys/class/gpio/gpio10/value`
			if [ "$data" -eq "1" ] ; then
				if [ $vup -eq 0 ] ; then
					mpc volume +5
					vup=1
					echo "Volume +5"
				fi
			else
				vup=0
			fi
		
			data=`cat /sys/class/gpio/gpio23/value`
			if [ "$data" -eq "1" ] ; then
				if [ $vdn -eq 0 ] ; then
					mpc volume -5
					vdn=1
					echo "Volume -5"
				fi
			else
				vdn=0
			fi

			
			data=`mpc status`

			if [[ $data == *"[playing]"* ]]
			then
  				state=1
			elif [[ $data == *"[paused]"* ]]
			then
				state=2
			else
  				state=0
			fi

			if [ $state -eq 1 ]
			then
				echo "1" > /sys/class/gpio/gpio4/value
			else
				echo "0" > /sys/class/gpio/gpio4/value
			fi
		fi
	done
}

loop &
exit 0

Attachments

: DSC_1316.JPG (117.5 KiB) Viewed 3918 times

yjo

So, report the results of checks below.

1. dmesg | grep lirc
Is lircd properly loaded?

2. ps -A | grep lirc
Is lircd staying and working?

3. irsend LIST "" ""
Is the conf file for your remote properly registered?

4. irsend LIST DENON_RC-266 ""
DENON_RC-266 should be replaced as your remote controller name registered in lircd.conf.
Is your remote controller properly registered?

5. Before you run irw, confirm that irexec does not stay.

BTW, I'm glad to your successful expansion of my button script

yjo

XploD

Oh, I hate this Arch Linux, my buttons are working great but I cannot make it start at boot, here is my .service file:

[Unit]
Description=playback_buttons

[Service]
Type=forking
ExecStart=/usr/bin/buttons.sh
TimeoutSec=0

[Install]
WantedBy=multi-user.target

I also tried with some modifications I found on internet but it just won't work.

For LIRC:
1. dmesg | grep lirc

[root@runeaudio ~]#  dmesg | grep lirc
[    4.579606] lirc_dev: IR Remote Control driver registered, major 248
[    4.597951] lirc_rpi: module is from the staging directory, the quality is unknown, you have been warned.
[    5.567014] lirc_rpi: auto-detected active high receiver on GPIO pin 18
[    5.567417] lirc_rpi lirc_rpi.0: lirc_dev: driver lirc_rpi registered at minor = 0
[    5.567438] lirc_rpi: driver registered!
[    5.567623] systemd-modules-load[65]: Inserted module 'lirc_rpi'

2. ps -A | grep lirc

[root@runeaudio ~]# ps -A | grep lirc
  120 ?        00:00:00 lircd

3. irsend LIST "" ""

[root@runeaudio ~]# irsend LIST "" ""

new_lircd.conf
new_lircd.conf

new_lircd.conf

begin remote

  name  new_lircd.conf
  driver devinput
  bits           64
  eps            30
  aeps          100

  one             0     0
  zero            0     0
  gap          569
  toggle_bit_mask 0x0

      begin codes
          KEY_VOLUMEUP             0x115200000100023D 0x00000000BEE1E9A5
          KEY_VOLUMEDOWN           0x1159000001000232 0x00000000BEE1E9A5
          KEY_PLAY                 0x116300000100022C 0x00000000BEE1E9A5
          KEY_PREVIOUS             0x114F000001000240 0x00000000BEE1E9A5
          KEY_NEXT                 0x115400000100023C 0x00000000BEE1E9A5
          KEY_MUTE                 0x115800000100027E 0x00000000BEE1E9A5
      end codes

end remote

4. I don't get this, what name? Here is my lircd.conf

LIRCD_ARGS="--uinput"
DRIVER="default"
DEVICE="/dev/lirc0"
MODULES="lirc_rpi"

5. How to kill irexec?

yjo

XploD wroteOh, I hate this Arch Linux, my buttons are working great but I cannot make it start at boot, here is my .service file:

For auto start up at boot, you have to activate the registered script as:

# systemctl enable your.service

I missed the description about that in my blog, so I did add that.

XploD wroteFor LIRC:
1. dmesg | grep lirc
<snip>
2. ps -A | grep lirc
<snip>

Very good. lircd properly starts.

XploD wrote3. irsend LIST "" ""

[root@runeaudio ~]# irsend LIST "" ""

new_lircd.conf
new_lircd.conf

The conf file should be renamed and located as /etc/lirc/lircd.conf.

XploD wrote4. I don't get this, what name? Here is my lircd.conf

LIRCD_ARGS="--uinput"
DRIVER="default"
DEVICE="/dev/lirc0"
MODULES="lirc_rpi"

The above descriptions are for /etc/conf.d/lircd.conf.
Installing lirc package introduces this file, and you should *modify* the corresponding lines in it according to the above quotation.

XploD wrote5. How to kill irexec?

irexec is controlled by systemd using irexec.service file.
To stop the running irexec,

# systemctl stop irexec.service

To start it manually,

# sytemctl start irexec.service

yjo

XploD

Oh, I'm so stupid I forgot to enable that service, now it works, thanks!

I don't know what I have done but my remote doesn't work at all anymore. Mode2 and irrecord don't react on key presses. I probably messed something up while working on buttons, I'll have to do a clean install of RuneAudio and then try with all your instructions.

PS. now I noticed that I accidentally connected my IR receiver to 5V instead 3.3V. I hope that my R-Pi pin is not damaged, as well as receiver itself.

eratical

Hello,

I follow many instructions but i don't know why it's not working.
When i press "irw "and any key, nothing shows up

I have a IR receiver on a B+ rasp: GPIO 18 , 3,3V and GND

# systemctl status lircd.service

[root@runeaudio ~]
* lircd.service - LIRC Infrared Signal Decoder
   Loaded: loaded (/usr/lib/systemd/system/lircd.service; disabled; vendor preset: disabled)
   Active: active (running) since Fri 2015-05-15 00:31:48 CEST; 16min ago
 Main PID: 1224 (lircd)
   CGroup: /system.slice/lircd.service
           `-1224 /usr/sbin/lircd --nodaemon

# vim /etc/modules-load.d/raspberrypi.conf

[root@runeaudio ~]
bcm2708-rng
snd-bcm2835
lirc_dev
lirc_rpi gpio_in_pin=18 gpio_out_pin=17

# vim /etc/conf.d/lircd.conf

[root@runeaudio ~]
LIRCD_ARGS="--uinput"
DRIVER="mceusb"
DEVICE="/dev/lirc0"
MODULES="lirc_rpi"

# dmesg | grep lirc

[root@runeaudio ~]
[    6.438771] lirc_dev: IR Remote Control driver registered, major 248
[    6.438927] systemd-modules-load[74]: Inserted module 'lirc_dev'
[    6.439396] systemd-modules-load[74]: Failed to find module 'lirc_rpi gpio_in_pin=18'
[  795.834083] lirc_rpi: module is from the staging directory, the quality is unknown, you have been warned.
[  796.797089] lirc_rpi: auto-detected active high receiver on GPIO pin 18
[  796.797508] lirc_rpi lirc_rpi.0: lirc_dev: driver lirc_rpi registered at minor = 0
[  796.797530] lirc_rpi: driver registered!

# ps -A | grep lirc

[root@runeaudio ~]
  697 ?        00:00:00 lircd

# irsend LIST "" ""

[root@runeaudio ~]
MCL_RemoteController

# irsend LIST MCL_RemoteController ""

[root@runeaudio ~]
00000000000018e7 KEY_SETUP
00000000000030cf KEY_CANCEL
000000000000a857 off
00000000000038c7 KEY_POWER
0000000000008877 flash
000000000000f00f strobe
000000000000c837 fade
00000000000008f7 smooth
000000000000807f KEY_RED
00000000000040bf KEY_GREEN
000000000000c03f KEY_BLUE
0000000000009867 white
00000000000020df red1
000000000000e01f red2
00000000000050af orange
000000000000b04f KEY_YELLOW
000000000000a05f green1
00000000000010ef blue1
000000000000d02f blue2
000000000000708f blue3
000000000000609f blue4
000000000000906f purple1
000000000000e817 purple2
000000000000b847 purple3
000000000000f807 KEY_POWER
000000000000d827 KEY_POWER
0000000000007887 KEY_POWER
00000000000058a7 KEY_POWER

Thanks for helping me on that !

PS: If i do "mode2 -d /dev/lirc0" then press a key on my remote, i see many lines like this:

pulse 620
space 514
pulse 619
space 520
pulse 608
space 1615
pulse 626
space 511
pulse 622
space 1611
pulse 625
space 1613
pulse 620
space 508
pulse 623
space 513
pulse 679
space 451
pulse 619
space 511
pulse 623
space 507
pulse 665
space 1573
pulse 626
space 1611
pulse 624
space 507
pulse 624
space 1617
pulse 624
space 1609
pulse 629
space 500
pulse 629
space 506
pulse 624
space 1616
pulse 627
space 39081
pulse 9044
space 2193
pulse 624

yjo

eratical wrote # vim /etc/modules-load.d/raspberrypi.conf

[root@runeaudio ~]
bcm2708-rng
snd-bcm2835
lirc_dev
lirc_rpi gpio_in_pin=18 gpio_out_pin=17

Delete last two lines.
Create /etc/module-load.d/lirc.conf, including the following line only.

lirc_rpi gpio_in_pin=18 gpio_out_pin=17

yjo

PS.
My blog may include some mistakes. I'll repeat the installation on next Saturday or Sunday from scratch...

eratical

Thx !

Don't know if it was the issue but it's seems to work better when i configure the LIRC config file

BUT, i have another one : when i press one key, there is a double press :

[root@runeaudio lircd.conf.d]# irw
0000000077e1d005 00 Replay Harmony
0000000077e1d005 01 Replay Harmony
0000000077e1b005 00 Skip Harmony
0000000077e1b005 01 Skip Harmony
0000000077e1c0b9 00 PwrToggle Harmony
0000000077e1c0b9 01 PwrToggle Harmony

yjo

Maybe that does not mean double press, but means the character of your remote controller.
Your system looks working well, so try combination with irexec.

yjo

eratical

Thx for your help yjo.

Unfortunately, it’s a double tap. When i configure irexec, commands are executing twice.
As i see on others forums, it’s a frequent issue. I will try to resolve but i’m not familiar with Arch

yjo

Sorry, I don't know what is important. But I suppose the above problem is caused by lirc (and/or related) setting(s) and not by archLinux itself.

BTW, I traced my job (and found some mistakes in the older posts

).

I rewrote the simple step-by-step instruction of IR remote control.

http://yjo-blog.blogspot.jp/2015/05/runeaudio-03-summary-system-setting.html

Good luck!

yjo

XploD

Thank you for helping us and for your time! As soon as I find some time, I will try this from scratch following your new tutorial.

In the meantime, I went a little further with GPIO and added LCD display with keys. I'll write tutorial and give code probably on my site and then give it here on forum.

Attachments

: DSC_1322.JPG (138.35 KiB) Viewed 3215 times

mishgun

XploD wroteThank you for helping us and for your time! As soon as I find some time, I will try this from scratch following your new tutorial.

In the meantime, I went a little further with GPIO and added LCD display with keys. I'll write tutorial and give code probably on my site and then give it here on forum.

I look forward to your description. I too want the screen to see the name of the groups and songs.

XploD

mishgun wrote
XploD wroteThank you for helping us and for your time! As soon as I find some time, I will try this from scratch following your new tutorial.

In the meantime, I went a little further with GPIO and added LCD display with keys. I'll write tutorial and give code probably on my site and then give it here on forum.
I look forward to your description. I too want the screen to see the name of the groups and songs.

I lost my C program but I created another in Python, and this one also scrolls both artist and title (in separated lines) if it's too long but I have some problems: when the song changes, writing to LCD gets very slow, you can clearly see how each charachter gets printed on the LCD. It's somehow cool but still something I want to avoid, because I want my new song information on the LCD display right now.

I thought that my code is bad and tried many things but it seems that writing to LCD is very slow on Python (using RPLCD library) but the weird thing is that it works fluently and fine when scrolling text. Only on song change it gets slow. Also I tried it with online radio station and there's no problem as well. Then I read somewhere that RPLCD is using /sys/gpio for GPIO which means that it has to open the file, write to it and close it each time it has to use GPIO. MPD also needs to fetch the new song so probably the problem lays in interfering between MPD's reading song file and my script writing to "files" for updating LCD.

Now I have to see if there's a better solution. I think that there's a WiringPi wrapper for Python, and WiringPi is 10-20 times faster and it's not using /sys/gpio

yjo

eratical wroteUnfortunately, it’s a double tap. When i configure irexec, commands are executing twice.
As i see on others forums, it’s a frequent issue. I will try to resolve but i’m not familiar with Arch

This is only an idea, but how about?

/etc/conf.d/lircrc

begin
           button = OK
           button = OK
           prog = irexec
           config = echo "This is test."
end

The key point is placing two identical "button=" lines.

yjo

phuongdk

XploD wroteThank you for helping us and for your time! As soon as I find some time, I will try this from scratch following your new tutorial.

In the meantime, I went a little further with GPIO and added LCD display with keys. I'll write tutorial and give code probably on my site and then give it here on forum.

Wow, I'm very interesting with your LCD display. Can you make a tutorial and share your code?

Many thanks!

hondagx35

Hi,

if someone has problems with getting lirc to work, please take a look here.

"irrecord" doesn't seem to work proper on arch-linux-arm.
The config files recorded with irrecord are not correct at all.
I copied my lircd.conf from an other machine and all works just fine now.

Frank

yjo

hondagx35 wrote"irrecord" doesn't seem to work proper on arch-linux-arm.
The config files recorded with irrecord are not correct at all.

Oh, I confirmed that.

My config file was created on Volumio, because I first tried to use the remote controller on Volumio.
I'll add this issue on my blog.
Thx.

yjo

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