a simple homeassistant component for using irtrans IR blasters. place in custom_components/switch/ - simple as i only need it to fire up my webos tv, i can then control it using the separate binding.

irtrans.py

"""
Support for irtrans IP devices with irdb

See: http://www.irtrans.de/

a simple homeassistant component for using irtrans IR blasters. place in custom_components/switch/
simple as i only need it to fire up my webos tv, i can then control it using the separate component.

usage:
switch:
  platform: irtrans
  switches:
    mytv:
      host: 192.168.0.22
      remote: 'my_remote'
      command_on: 'power_on'
      command_off: 'power_off'

"""
import logging
import socket
import voluptuous as vol

from homeassistant.components.switch import (
    ENTITY_ID_FORMAT, PLATFORM_SCHEMA, SwitchEntity)
from homeassistant.const import (
    CONF_NAME, CONF_HOST, CONF_PORT, CONF_COMMAND_ON, CONF_COMMAND_OFF, CONF_SWITCHES)
import homeassistant.helpers.config_validation as cv

_LOGGER = logging.getLogger(__name__)

DOMAIN = "irtrans"

DEFAULT_PORT = 21000

SWITCH_SCHEMA = vol.Schema({
    vol.Required('remote'): cv.string,
    vol.Required(CONF_COMMAND_ON): cv.string,
    vol.Required(CONF_COMMAND_OFF): cv.string,
    vol.Required(CONF_HOST): cv.string,
    vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
    vol.Optional(CONF_NAME): cv.string,
})

PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
    vol.Required(CONF_SWITCHES): vol.Schema({cv.slug: SWITCH_SCHEMA}),
})

def setup_platform(hass, config, add_devices, discovery_info=None):
    """Setup the irtrans component."""
    devices = config.get(CONF_SWITCHES, {})
    switches = []

    for object_id, device_config in devices.items():
        switches.append(
            IrTransSwitch(
                hass,
                object_id,
                device_config.get(CONF_HOST),
                device_config.get('remote'),
                device_config.get(CONF_COMMAND_ON),
                device_config.get(CONF_COMMAND_OFF),
                device_config.get(CONF_PORT),
                device_config.get(CONF_NAME, object_id),
            )
        )

    if not switches:
        _LOGGER.error("No switches added")
        return

    add_devices(switches);


class IrTransSwitch(SwitchEntity):
    """Representation of a switch that can be toggled using irtrans commands."""

    def __init__(self, hass, object_id, host, remote, command_on, command_off, port, friendly_name):
        """Initialize the switch."""
        self._hass = hass
        self.entity_id = ENTITY_ID_FORMAT.format(object_id)
        self._host = host
        self._port = port
        self._remote = remote
        self._command_on = command_on
        self._command_off = command_off
        self._name = friendly_name

    @property
    def name(self):
        """Return the name of the switch."""
        return self._name

    @property
    def should_poll(self):
        """ no polling """
        return False

    @property
    def is_on(self):
        """ never on """
        return False

    @property
    def assumed_state(self):
        """ always on """
        return True

    def _irtrans_command(self, command):
        try:
            s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
            s.connect((self._host, self._port))
            s.sendall(b"ASCI")
            cmd = ("Asnd %s,%s\r\n" % (self._remote, command))
            s.sendall(cmd.encode('ascii'))
            data = s.recv(1024)
            s.close()

            ret = data.decode('ascii').strip()
            if not 'RESULT OK' in ret:
                _LOGGER.error('error returned for command "%s": "%s"', command, ret)
        except IOError as error:
            _LOGGER.error(
                    'Command "%s" failed with exception: %s',
                    command, repr(error))

    def turn_on(self, **kwargs):
        """ turn the device on. """
        ret = self._irtrans_command(self._command_on)

    def turn_off(self, **kwargs):
        """ turn the device off. """
        ret = self._irtrans_command(self._command_off)

Can I use somethig like that with openhab?

Can I use somethig like that with openhab?

sure, there's an official binding for irtrans devices: https://www.openhab.org/addons/bindings/irtrans/

Sorry for this question, but I'm a begineer, what should I change in the code so that it works with openhab without problem? Only the lines from 24 to 28?

you should really use the openhab binding for openhab, this script is only for homeassistant.

the network protocol for irtrans is pretty simple and well documented though, if you want to write your own openhab binding for any reason.

Hi,
thank you for this script :-)

Could you help me to understand your code.

Do you use an irtrans with db ?
If it's the case, in the code below, you use the name registered in the db of the irtrans to send the command ?

usage:
switch:
platform: irtrans
switches:
mytv:
host: 192.168.0.22
remote: 'my_remote'
command_on: 'power_on'
command_off: 'power_off'

If I understood I have to register the IR code in the db and labelled the code "vol_up" and modified your code like that

usage:
switch:
platform: irtrans
switches:
mytv:
host: 192.168.0.22
remote: 'my_remote'
command_on: 'vol_up'

Hi PITP2,

If I understood I have to register the IR code in the db and labelled the code "vol_up" and modified your code like that

usage:
switch:
platform: irtrans
switches:
mytv:
host: 192.168.0.22
remote: 'my_remote'
command_on: 'vol_up'

this would send the following to the irtrans device when you call the switch.turn_on service with this entity:

ASCI
ASnd my_remote,vol_up

see lines 113 and 114 of the script. you can easily test this using netcat, unrelated to homeassistant and this component. if that works, your database command name and remote name are correct, if not, you might get a more or less helpful error message back ;)

good luck!

Thank you for your reply.

So I put the file into /config/custom_components/irtrans/switch.py

I added irtrans: in my configuration.yaml

I reloaded "scripts"

But I have an error message : Component error: irtrans - Integration 'irtrans' not found.

Where I did a mistake ?

I added irtrans: in my configuration.yaml

you will just need to add the switch with the 'platform' irtrans, as you stated above. a line 'itrans:' is not required.

after copying the file where you copied it, adding the switch and re-starting HA, you should see a line in the log:

[homeassistant.loader] You are using a custom integration for irtrans which has not been tested by Home Assistant. This component might cause stability problems, be sure to disable it if you experience issues with Home Assistant.

Thank you for your help :-)

I remove the "irtrans:" and added in the configuration.yaml

########## HIKVISION ###########
switch:

• platform: hikvisioncam
  host: 192.168.178.9
  username: 'xxx'
  password: 'xxxxxx'
• platform: irtrans
  switches:
  mytv:
  host: 192.168.0.22
  remote: 'my_remote'
  command_on: 'vol_up'

but I always have the error message :

sorry.. i don't know why this happens. it works for me (TM) ;-) have you checked your logfile?

this is what i have in my config. best to use the code formatting here, as to avoid the markdown magic formatting ;)

switch:
  - platform: irtrans
    switches:
      lgtv:
        host: 192.168.168.192
        remote: 'lgtv_new'
        command_on: 'power'
        command_off: 'ignored'

come to think of it, command_off is a required parameter ;) i used the lg tv integration to switch off the tv, so i just set a command that is unknown to the irtrans and ignore the error ;)

I tried to copy past your code in my configuration.yaml and I always have the error

It's really strange

Hi,

I tried again and again and I always have this issue.
It could be a problem of version ?
My sever has the last software version of hass.
It's the same for you ?

Do any other custom components work in your setup? I don't know about hass, i use homeassistant core installed with pip/virtualenv.

you're a master of hass if you use homeassistant core :-)

Yes I use HACS and he's in the same location

Always the same error message
Platform error switch.irtrans - Integration 'irtrans' not found.

sorry, i'm afraid i can't help you any further.. i don't even use my irtrans thingy anymore; my new tv has wake-on-lan. good luck figuring it out though! :)

as i now need the device again (for an old AC this time) i discovered that i can also simply trigger IR commands via http, so i'm now using rest_command much like described here:

https://community.home-assistant.io/t/how-to-create-a-card-with-buttons-that-execute-trigger-urls/193694/6

the URL i call on the irtrans for the above example is:

http://<irtrans ip>/send.htm?remote=lgtv_new&command=power