LIRC integration for Home Assistant allows you to receive signals from an infrared remote control and control actions based on the buttons you press. You can use them to set scenes or trigger any other automation.
Sending IR commands is not supported in this component (yet), but can be accomplished using the shell_command component in conjunction with the
To allow Home Assistant to talk to your IR receiver, you need to first make sure you have the correct dependencies installed:
$ sudo apt-get install lirc liblircclient-dev
If you are configuring on a Raspberry Pi, there are excellent instructions with GPIO schematics and driver configurations here. Take notice, the instructions in this blog are valid for Raspian Jesse where lirc 0.9.0 was included in the debian package. In Raspian Stretch lirc 0.9.4 is included in the Debian package.
The configuration is slightly different :
hardware.conf file is not supported, obsoleted by a new
lirc_options.conf file and systemd unit definitions.
- The former single
lirc service is replaced with the three systemd services
irexec.service. There is no counterpart to the 0.9.0
lirc service which covered all of these. Using a separate transmitter device requires yet another service.
- 0.9.4 defaults to using systemd for controlling the services. This is not just start/stop functionality, systemd is used to implement new features and to address shortcomings in 0.9.0. However, traditional systemV scripts are also installed and could be used although this is less tested and not really documented.
For more information have a look at
/usr/share/doc/lirc/README.Debian.gz where the update process is explained when you have updated from jessie to stretch.
Now teach LIRC about your particular remote control by preparing a lircd configuration file (
/etc/lirc/lircd.conf). Search the LIRC remote database for your model. If you can’t find it, then you can always use the
irrecord program to learn your remote. This will create a valid configuration file. Add as many remotes as you want by pasting them into the file. If
irrecord doesn’t work (e.g., for some air conditioner remotes), then the
mode2 program is capable of reading the codes in raw mode, followed by
irrecord -a to extract hex codes.
Next, you have to make a
~/.lircrc file that maps keypresses to system actions. The file has to be in the home dir of the user running Home Assistant, e.g., in
/home/homeassistant/.lircrc if you’re running in a virtual env. The configuration is a bit tedious but it must be done. Use the
prog = home-assistant for all keys you want to be recognized by Home Assistant. The values you set for
button must be the same as in the
lircd.conf file and the values you put for
config entry will be the sensor value in Home Assistant when you press the button. An example may look like this:
begin remote = SONY button = KEY_1 prog = home-assistant config = KEY_1 end begin remote = SONY button = KEY_2 prog = home-assistant config = KEY_2 end begin remote = SONY button = KEY_3 prog = home-assistant config = KEY_3 end
Test your LIRC installation before proceeding by running:
$ ircat home-assistant
and pressing some buttons on the remote. You should see them register on the screen if LIRC is properly configured.
# Example configuration.yaml entry lirc:
The LIRC component fires
ir_command_received events on the bus. You can capture the events and respond to them in automation scripts like this:
# Example configuration.yaml automation entry automation: - alias: Off on Remote trigger: platform: event event_type: ir_command_received event_data: button_name: KEY_0 action: service: homeassistant.turn_off entity_id: group.a_lights
button_name data values (e.g.,
KEY_0) are set by you in the