Crestron Room View projector control

Third party integrations
1

Hi,
din’t really know where to put his topic, but I’ll try here.

I have an quite old Mitsubishi EW270U projector that only support Crestron Room View for controlling (not PJLink). I didn’t find any information about how this protocol works so I had a look at the network traffic and it was quite easy to find the different commands. So if you have this projector (or maybe another one using Crestron Room View) you can add the following in configuration.yaml to be able to turn it on and off using Home assistant (replace the IP with your projector IP address).

shell_command:
  projector_on: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x04\x00" | nc 192.168.0.123 41794 && sleep 5s'
  projector_off: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x05\x00" | nc 192.168.0.123 41794 && sleep 5s'
  projector_mute: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xfc\x13" | nc 192.168.0.123 41794 && sleep 5s'
  projector_unmute: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xfd\x13" | nc 192.168.0.123 41794 && sleep 5s'
1 Like
2

I tied to figure out some other commands as well, with below you could almsot replace the remote control.

configuration.yaml:

switch:
  - platform: command_line
    switches:
      sw_projector_mute:
        command_on: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xfd\x13" | nc 192.168.0.123 41794'
        command_off: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xfc\x13" | nc 192.168.0.123 41794'
        command_timeout : 10.0
      sw_projector_blank:
        command_on: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xee\x13" | nc 192.168.0.123 41794'
        command_off: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xef\x13" | nc 192.168.0.123 41794'
        command_timeout : 10.0


shell_command:
  projector_on: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x04\x00" | nc 192.168.0.123 41794'
  projector_off: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x05\x00" | nc 192.168.0.123 41794'
  projector_menu: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x1d\x14" | nc 192.168.0.123 41794'
  projector_enter: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x23\x14" | nc 192.168.0.123 41794'
  projector_right: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x21\x14" | nc 192.168.0.123 41794'
  projector_left: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x20\x14" | nc 192.168.0.123 41794'
  projector_up: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x1e\x14" | nc 192.168.0.123 41794'
  projector_down: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x1f\x14" | nc 192.168.0.123 41794'
  projector_unmute: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xfd\x13" | nc 192.168.0.123 41794'
  projector_mute: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xfc\x13" | nc 192.168.0.123 41794'
  projector_blank: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xee\x13" | nc 192.168.0.123 4179'
  projector_unblank: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xef\x13" | nc 192.168.0.123 41794'
  projector_source: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x6f\x17" | nc 192.168.0.123 41794'

An example how to add an “remote” to the UI - I’m using the virtual command_line-switches for mute and blank. I think that works although they might get the incorrect status if you also use the IR.

square: true
columns: 3
title: Projector
type: grid
cards:
  - show_name: true
    show_icon: true
    type: button
    tap_action:
      action: call-service
      service: shell_command.projector_on
    name: 'On'
    icon: mdi:projector
  - show_name: true
    show_icon: true
    type: button
    tap_action:
      action: call-service
      service: shell_command.projector_off
    name: 'Off'
    icon: mdi:projector-off
  - show_name: true
    show_icon: false
    type: button
    tap_action:
      action: toggle
  - show_name: true
    show_icon: true
    type: button
    tap_action:
      action: call-service
      service: shell_command.projector_menu
      data: {}
      target: {}
    icon: mdi:menu
  - show_name: true
    show_icon: true
    type: button
    tap_action:
      action: call-service
      service: shell_command.projector_up
      data: {}
      target: {}
    icon: mdi:chevron-up-box-outline
  - show_name: true
    show_icon: false
    type: button
    tap_action:
      action: toggle
  - show_name: true
    show_icon: true
    type: button
    tap_action:
      action: call-service
      service: shell_command.projector_left
      data: {}
      target: {}
    icon: mdi:chevron-left-box-outline
  - show_name: true
    show_icon: true
    type: button
    tap_action:
      action: call-service
      service: shell_command.projector_enter
      data: {}
      target: {}
    icon: mdi:checkbox-outline
  - show_name: true
    show_icon: true
    type: button
    tap_action:
      action: call-service
      service: shell_command.projector_right
      data: {}
      target: {}
    icon: mdi:chevron-right-box-outline
  - show_name: false
    show_icon: true
    type: button
    tap_action:
      action: toggle
    entity: switch.sw_projector_mute
    icon: mdi:volume-off
  - show_name: false
    show_icon: true
    type: button
    tap_action:
      action: call-service
      service: shell_command.projector_down
      data: {}
      target: {}
    icon: mdi:chevron-down-box-outline
  - show_name: false
    show_icon: true
    type: button
    tap_action:
      action: toggle
    entity: switch.sw_projector_blank
    icon: mdi:checkbox-blank-off-outline

image
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1 Like
3

Hello there,

What you did here is exactly what I was looking for, for a project ive been working on. I am however, having some issues implementing this. I am not new to home assistant but new to creating things inside of it. I added the switch and shell command code to the configuration.yaml thinking that was the correct place. When i press the button on the dashboard i get service XXX is unavailable. I tried to add it to scripts by both creating a new script or just includeing it inside of scripts both in code and !include xxx.yaml. When i try to create a script with the code i get

Message malformed: extra keys not allowed @ data[‘switch’]

Is there any help you could provide?

4

Hi!

Strange - could there be something with the code, something missing or so? One idea is to strip it down to just one shell_command for example and try to get that working.
And changes to configuration.yaml requires a restart (or if it’ enought with a reload).

5

I had a look at my configuration.yaml again, and for some reason I’m only using shell_command now. Can’t remember why but there were probably a reason.

shell_command:
  projector_on: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x04\x00" | nc 192.168.0.108 41794'
  projector_off: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x05\x00" | nc 192.168.0.108 41794'
  projector_menu: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x1d\x14" | nc 192.168.0.108 41794'
  projector_enter: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x23\x14" | nc 192.168.0.108 41794'
  projector_right: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x21\x14" | nc 192.168.0.108 41794'
  projector_left: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x20\x14" | nc 192.168.0.108 41794'
  projector_up: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x1e\x14" | nc 192.168.0.108 41794'
  projector_down: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x1f\x14" | nc 192.168.0.108 41794'
  projector_unmute: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xfd\x13" | nc 192.168.0.108 41794'
  projector_mute: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xfc\x13" | nc 192.168.0.108 41794'
  projector_blank: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xee\x13" | nc 192.168.0.108 4179'
  projector_unblank: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xef\x13" | nc 192.168.0.108 41794'
  projector_source: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\x6f\x17" | nc 192.168.0.108 41794'
6

I tried with just the shell I think but I’ll double check it was late last night. I appreciate the quick response I’ll report back.

7

I think i got it figured out. Have to take the Pi to church now and see if i can control the two projectors. Not getting service errors anymore tho. I big time appreciate the help and integration you have made here.

8

I have a Mitsubishi WD720U projector. It does have PJLink Class 1 but it’s quite limited. I wanted to be able to freeze and unfreeze the image. Below are some additional commands I discovered for Crestron Room View

shell_command:
  projector_freeze_on: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xf0\x13" | nc 192.168.1.139 41794'
  projector_freeze_off: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xf1\x13" | nc 192.168.1.139 41794'
  projector_hdmi_source: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xd1\x13" | nc 192.168.1.139 41794'
  projector_video_source: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xcf\x13" | nc 192.168.1.139 41794'
  projector_computer1_source: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xcd\x13" | nc 192.168.1.139 41794'
  projector_volume_up: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xfa\x13" | nc 192.168.1.139 41794'
  projector_volume_down: 'echo -n -e "\x05\x00\x06\x00\x00\x03\x00\xfb\x13" | nc 192.168.1.139 41794'

You can also run
echo -n -e "\x05\x00\x05\x00\x00\x02\x03\x1e" | nc 192.168.1.139 41794 in Home Assistant terminal and it’ll output the projectors current status and some stats about it. I got:

rYrŕrant 15 EFPYZ[\_cdmnopqrstuvm346
Computer1
Computer2
Video
S-Video
HDMI
PC Less Presentation
USB Display
LAN Display
$! 'MITSUBISHI:Projector:WD720U:1
Power On
Power On
Standard2680 Hours2680 Hours
HDMI 192.168.1.139 255.255.255.0 192.168.1.1 <MACADDRESS>
41794
WD720U 1920x1080i

You could make sensors out of this data and also get the power on/off status.

1 Like
9

Nice work!

1 Like
10

I have built an easy to use integration with Home Assistant via Appdaemon for this. I might make it into a normal HA integration if there’s enough interest.

It can do most of the important actions that the Crestron RoomView Flash Player page can do. Some things it does even better, such as instant volume jumps. In Crestron RoomView you had to click multiple times for volume up and down to get to the value. I managed to find the TCP commands to instantly set a certain volume.
Here’s some screenshots.

image
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image
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What I’m most proud of is that it shows the cooling down/warming up status with a live percentage.

Importantly it has realtime status updates. So if you freeze, AV Mute, change volume etc. it shows up as you’d expect.
It also automatically creates all the button entities for you, such as the menu buttons.

Under states you can even monitor stats such as lamp hours.

image
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Lastly it checks what sources your projector supports and only shows you them as an option. I only have one projector so not sure how it’ll go if you have completely unique sources compared to me.

image
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Using Crestron RoomView projector control with Home Assistant via AppDaemon

Step 1: Install the AppDaemon Addon in Home Assistant

If you haven’t already, install AppDaemon through Home Assistant’s Add-on Store or as a Docker container.

Step 2: Add AppDaemon .py file

Download the crestron_projector.py file and put it in your AppDaemon apps directory e.g.

\addon_configs\a0d7b954_appdaemon\apps

Step 3: Add apps.yaml file

Paste in the apps.yaml configuration into your apps.yaml file. Change the ip_address field to your projectors IP address.

Step 4: Locate Entities

After saving both files you should now see your projector media player entity as well as other button and switch entities in Home Assistant.

I did up a video guide for a different AppDaemon thing I did, but you could watch it if you want a more visual guide on how to set up AppDaemon
youtu.be/U8Lxwaw6P1E?t=27

If anyone tries it and has any issues let me know. RoomView is an old technology so I don’t expect that many people are left still using this. But if you’re like me and got a cheap old projector then it’s nice to still make use of it.

FYI, if you still want to make use of the Crestron RoomView Flash Player page on your projector you can use an older portable browser to access it
Firefox and Google Chrome with Flash Player : Internet Archive