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Meet + StreamDeck Helper

Last Updated: 2021-09-30

The problem

The keyboard shortcuts in Meet are great, but I want dedicated hardware buttons to be able to easily mute/unmute myself, turn the camera on/off, raise my hand, etc. Thanks to WebHID, the Elgato StreamDeck, and a Chrome Extension, I now have them.

The solution

Elgato StreamDeck

The Elgato StreamDeck is a programmable 15 key keyboard. Each key is backed with an LCD panel, making it easy to customize the buttons for any use. It connects to the computer via USB and HID.

  • Thanks to @jimmc, who implemented support for the StreamDeck Mini.
  • Thanks to @alextcowan, who implemented support for the StreamDeck v1.

WebHID

The Chrome team is currently implementing WebHID, which will allow pages to interact with HID devices like the StreamDeck.

Because this uses Chrome's WebHID implementation, no device drivers are needed, and it works beautifully on ChromeOS, Mac, Windows, and Linux (though I haven't tested it there).

The implementation

To use the StreamDeck with Meet, I created a Chrome extension, it uses a content script to inject the code into the meet page. The code then detects the status of the meeting (lobby, green room, in meeting, in exit hall), and adjusts the StreamDeck buttons as appropriate.

I considered making the StreamDeck.js a custom element, but ran into issues with custom elements not being fully supported within Chrome Extensions. I could have used the polyfill, but for sake of speed, I just went with a generic class. I hope to be able to fix that in the near future.

In lobby

In the lobby, 2 buttons are enabled:

  • Start next scheduled meeting.
  • Start instant meeting.

In green room

In the green room, there are three buttons enabled:

  • Enter meeting (Join now).
  • Mute/unmute mic.
  • Enable/disable cam.
  • Return to home screen.

In the meeting

While in the meeting, there are sevent buttons enabled:

  • Mute/unmute mic.
  • Enable/disable cam.
  • Enable/disable captions (when available).
  • Raise/lower hand (when available).
  • Stop presenting (when applicable).
  • Show/hide meeting info.
  • Show/hide people in meeting.
  • Show/hide chat.
  • Show/hide activities panel (when available).
  • Leave meeting.

After meeting

  • Rejoin meeting.
  • Return to home screen.

Trying it yourself

To try the extension yourself, you'll need a StreamDeck device, then follow the instructions below.

  1. Open chrome://extensions/, and enable developer mode.
  2. Load the unpacked extension from the src folder.
  3. Open Google Meet.
  4. Ensure the StreamDeck device is plugged into your computer.
  5. Click on the 'Connect StreamDeck' button in the upper left corner.
  6. In the device picker, choose the StreamDeck and click Connect.

Note: Googlers, see go/streamdeck-meet-for-googlers for an additional step you'll need to take.

If everything worked, the StreamDeck should now be connected and your buttons should have updated to support starting instant meetings. Chrome will remember the connection, so you don't need to run the connect step again in the future.

Caveats

  • This is a proof of concept, and experiment for me to better learn the WebHID API, there are bugs.
  • After closing the page/navigating away, the buttons will likely remain unchanged, and clicking them won't do anything. Once you open Meet again, they'll start working.

Linux

On linux, the udev subsystem blocks access to the StreamDeck without some special configuration. Save the following to /etc/udev/rules.d/50-elgato.rules and reload the rules with sudo udevadm control --reload-rules.

SUBSYSTEM=="input", GROUP="input", MODE="0666"
# Stream Deck Original
SUBSYSTEM=="usb", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="0060", MODE:="666", GROUP="plugdev"
KERNEL=="hidraw*", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="0060", MODE:="666", GROUP="plugdev"
# Stream Deck Mini
SUBSYSTEM=="usb", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="0063", MODE:="666", GROUP="plugdev"
KERNEL=="hidraw*", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="0063", MODE:="666", GROUP="plugdev"
# Stream Deck XL
SUBSYSTEM=="usb", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="006c", MODE:="666", GROUP="plugdev"
KERNEL=="hidraw*", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="006c", MODE:="666", GROUP="plugdev"
# Stream Deck Original (v2)
SUBSYSTEM=="usb", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="006d", MODE:="666", GROUP="plugdev"
KERNEL=="hidraw*", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="006d", MODE:="666", GROUP="plugdev"
# Stream Deck MK.2
SUBSYSTEM=="usb", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="0080", MODE:="666", GROUP="plugdev"
KERNEL=="hidraw*", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="0080", MODE:="666", GROUP="plugdev"
# Stream Deck +
SUBSYSTEM=="usb", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="0084", MODE:="666", GROUP="plugdev"
KERNEL=="hidraw*", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="0084", MODE:="666", GROUP="plugdev"
# Stream Deck Pedal
SUBSYSTEM=="usb", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="0086", MODE:="666", GROUP="plugdev"
KERNEL=="hidraw*", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="0086", MODE:="666", GROUP="plugdev"
# Stream Deck XL (v2)
SUBSYSTEM=="usb", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="008f", MODE:="666", GROUP="plugdev"
KERNEL=="hidraw*", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="008f", MODE:="666", GROUP="plugdev"
# Stream Deck Mini (v2)
SUBSYSTEM=="usb", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="0090", MODE:="666", GROUP="plugdev"
KERNEL=="hidraw*", ATTRS{idVendor}=="0fd9", ATTRS{idProduct}=="0090", MODE:="666", GROUP="plugdev"

Thanks to node-elgato-stream-deck for figuring that out and documenting it. Thanks to The USB ID Repository for the additional device names.