SmolSlimeConfigurator

Pure Simple UI Configurator for SlimeVR Smol Slimes (Unofficial)

Features

• Easy-to-use interface — clean, modern, and simple to use & Helpful tooltips.
• Effortless configuration — one-click buttons for calibration, pairing, and more.
• Automatic firmware updater — just plug your tracker in via USB, select your firmware type, and flash the latest build instantly.
• Complete command set — tracker and receiver commands are available without a separate advanced mode.
• Always up to date — the firmware list automatically fetches the latest daily builds from GitHub.
• Custom firmware support — flash your own .uf2 or .hex files no problem.
• Favorites system — star your most-used firmware versions by Right-Clicking (Middle-Clicking on Mac).
• Cross-platform desktop app — available for Windows, Linux, and macOS.
• Color themes — choose Light, Dark, Dark Blue, or Dark Green; Dark Green is the default.
• Cross-platform desktop UI — built with PySide6 and Qt Quick/QML for Linux, macOS, and Windows.

Download

There are 2 options to run the Configurator:

• Single-file executables are available from Releases (Windows, Linux, macOS, Android).
• Run from source with Python 3.10 or newer:

python -m pip install -r requirements.txt
python SmolSlimeConfiguratorV10.py

GitHub Actions builds standalone desktop executables for Linux, macOS, and Windows on pushes and pull requests to main. Publishing a GitHub release also builds all three platforms and attaches their executables to the release.

HEX firmware flashing uses Nordic's standalone nrfutil release. If it is not already found at SMOLSLIME_NRFUTIL, in the app bundle, or on PATH, the app downloads the platform-specific executable from Nordic's official GitHub release and stores it beside the user's SmolSlime config.json. The app logs command output when flashing fails.

Instructions

Note: There is a video tutorial explaining general usage, and this video covers Android usage in detail.

First install

• Plug in the tracker or receiver, hold one side of a wire on rst pin (4th pin down from where B+ pin is) and doubble tap gnd (usbc connector on the Nice!Nano)
• Press "↻" refresh, then select the port from the dropdown menu on the left of the refresh button, then press "Connect"
• Select the version of hardware from the dropdown menu called "Select Firmware", press "⬇ Firmware", Wait ~20 seconds, the tracker will flash.

Pairing

• Plug in your Reciever, press "↻" refresh and select the port And then press "Connect"
• To Configure your reciever, select the reciever tab, press pairing mode and power on each reciever one by one, you should notice the trackers being added, once all the trackers have been paired, press "Exit Pairing Mode"

Calibration

• Plug in a tracker, Press "↻" refresh, select the COM port & "Connect", press "Calibrate 6 Sides", do what the terminal says.
• Then press "Calibrate", leave the tracker on a desk for 5~ seconds and done!

Note: You can also doubble tap the trackers button instead of pressing "Calibrate"

Updating Firmware

• Connect to the port, select the firmware, press "⬇ Firmware" and wait ~20 seconds.

Note: Trackers and recievers need to be all updated on the same version or they wont want to pair

Official SmolSlime docs Here

Odd notes:

• If you want to feel safe running this program, read the Python code and run it from the .py.
• If a tracker has old pair data it wont connect to your reciever, plug your tracker in and "Clear Con. data".
• If the trackers and recievers arent on the same daily build, they will not want to connect.
• There is a .html version of this app, and hosted on a website, made by jitingcn.
• Looking for old source code? look here