title: OctoTray
description: PyQt tray application to control OctoPrint/Moonraker
parent: 3d-printing
position: 50
comments: true
git: https://git.xythobuz.de/thomas/OctoTray
github: https://github.com/xythobuz/OctoTray
date: 2021-05-08
update: 2022-10-16
---

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To quickly print new stuff on one of my printers, I am using the [OctoPrint](https://octoprint.org) integration of [PrusaSlicer](https://github.com/prusa3d/PrusaSlicer).
Unfortunately, it does not allow me to turn on the printers power supply using the Raspberry Pi.
But it is possible to do that via the [OctoPrint REST API](https://docs.octoprint.org/en/master/api/index.html) or the [Moonraker REST API](https://moonraker.readthedocs.io/en/latest/web_api/).
Because of that, I wrote a small tool to trigger the power of my printers that lives in the system tray.
It runs on Linux using the Python Qt5 bindings, but it has been tested on Windows and should run on macOS as well.

<!--%
lightgallery([
    [ "img/octotray_7.png", "Screenshot of OctoTray version 0.5" ],
    [ "img/octotray_8.png", "Screenshot of webcam viewer in OctoTray version 0.5" ],
    [ "img/octotray_9.png", "Screenshot of settings dialog in OctoTray version 0.5" ],
    [ "img/octotray_4.png", "Screenshot of status dialog in OctoTray version 0.2" ],
])
%-->

To get started quickly, if you are running Windows or macOS, simply download the most recent pre-built binary from GitHub.
For Linux, just run or install the program from the source repo directly.

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printLatestRelease("xythobuz", "OctoTray")
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You need to enter the hostnames / IPs and the OctoPrint API keys of your printers in the settings dialog of the application.
The program will automatically detect which method to use to switch the power.
If you are using the [PSU Control OctoPrint Plugin](https://plugins.octoprint.org/plugins/psucontrol/) it will use that to toggle the power.
Also it looks for custom system commands, as described in the [OctoPrint docs](https://docs.octoprint.org/en/master/configuration/config_yaml.html#system).

To give you an example of the system actions you could use to switch GPIOs from OctoPrint, take a look below at the excerpt of my 'config.yaml' file.

    system:
        actions:
        -   action: printer on
            command: gpio -g mode 26 out && gpio -g write 26 0
            name: Turn on printer
        -   action: printer off
            command: gpio -g write 26 1 && gpio -g mode 26 in
            confirm: You are about to turn off the printer.
            name: Turn off printer

You can find the project [on my Gitea server](https://git.xythobuz.de/thomas/OctoTray) or on [GitHub](https://github.com/xythobuz/OctoTray).

I also wrote a bit more about my OctoPrint setups [on this page](octoprint.html).

<div class="collapse">Here are some older screenshots of OctoTray.</div>
<div class="collapsecontent">
<!--%
lightgallery([
    [ "img/octotray_6.png", "Screenshot of OctoTray version 0.3" ],
    [ "img/octotray_5.png", "Screenshot of settings dialog in OctoTray version 0.3" ],
    [ "img/octotray_2.png", "Screenshot of webcam viewer in OctoTray version 0.2" ],
    [ "img/octotray_3.png", "Screenshot of OctoTray version 0.2" ],
    [ "img/octotray_1.png", "Screenshot of OctoTray version 0.1" ]
])
%-->
</div>