The VR Tracker Project🤫
Comes at the base of Millomaker BUT with my own additions and preferences (That way I can teach you about my rookie mistakes too 😉)Languages 🌍 -> [FR 🇫🇷] [EN 🇬🇧] (English WIP... some buttons can be broken)
The Tutorial
To do this, I basically followed this tutorial (Thanks Millomaker if you go there ❤️)Some documentations
Patreon post of MillomakerSlimeVR Documentation
The required components (for 8 Trackers) in part affiliated by Millomaker:
Name of the part | Option / "Color" | Quantity (For 1) | Price (For 1) | Quantity to take | Price (For all) |
---|---|---|---|---|---|
Wemos D1 Mini Type C | D1 MINI TYPE-C | 1 | 1,80€ + 1,31€ | 8 | 14,40€ + 2,28€ |
Battery LiPo 1800mah 804040 | 5pcs 2wires no plug | 5 | 13,61€ + 5,40€ | 2 | 27,22€ + 9,00€ |
Li-Ion charger/ Boost MH-CD42 | 2A 5V | 1 | 1,06€ + 1,19€ | 8 | 8,48 + 4,08 |
Accelerometer BMI160 | Khaki | 1 | 1,57€ + 1,19€ | 8 | 12,56€ + 4,08€ |
Wires | Black + Red (for each) Options: 5 Meters ; 32AWG | 1 | 0,82€ + FREE | 1 for each (2) | 1,64€ + FREE |
Straps | 38x300mm + 38x400mm + 38x600mm | 2 or 5 | - | 2 for each exept 38x300mm (1 only) | 10,14€ + 2,67€ |
Screws | Your choice (Only the color changes) | 1 | 5,16€ + FREE | 1 | 5,16€ + FREE |
Total : 79,60€ + 22,11€ = 101,71€ (For the components) for 8 trackers (In France 🇫🇷) |
Just a few points (that I think) are important to say :
- ⚠️ After, you need to print 3D parts so, if you have a 3D printer (or if you know someone who can print it for you) that's perfect 👌
- The Wemos D1 Mini don't have the same link as Millomaker despite the seller's pictures. (His link)
- When I ordered with his link, I did not received the same part so, j'ai dû recommend elsewhere (View photo)
- The prices can (sometimes) according to your country and/or over the time (yeah that's stupid to say but I say it anyway 🙄)
- For the Straps, I have choosed 8 because I thought that's the most optimal.
- Here's also where I plan to put the straps (as well as the trackers) :

My setup
Here, not so much to tell... but, here's what I would have recommended :- A good-enough PC to start SteamVR without too much trouble
- A wireless access point next to your PC
I would recommend having your PC as an access point.
or a router in the same room as your PC
⚠️(avoild access points with a phone, trackers could disconnect sometimes, even close)
The welding and assembly part
So here, too lazy to explain the whole welding process for the moment...... But you can see the Patreon post of Millomaker for that
Here's also the 3D files to print, you can find it here
The Firmware
So here, 2 methods :The simple method
Here, The entire setup will be easy to understand and do. This online took permits to upload code directly online.So, Ensure that you have connected your tracker to the PC and to have a compatible navigator (like Microsoft Edge)
After, Enter these parameters below and then, click on Continue

The hard method
For that, tou need to install a lot of softwares, everything is explained on this documentationThe last steps
To connect and set up your trackers, you need to install SlimeVR Server (Also avaiable on the SlimeVR documentation if you look hard enough)After, open the software and if you you have not already set up your Wi-Fi network parameters,
connect one-by-one your trackers to your PC and enter your Wi-Fi settings
Une fois le Wi-Fi de renseigné et vos trackers enfilés, il vous restera à calibrer la position de vos trackers.
Allez dans "Mounting Calibration" dans la barre de gauche et puis, calibrez vos trackers
Si les trackers virtuels ne s'affichent pas sur SteamVR, c'est sûrement car des extensions sur SteamVR ne sont pas activées.
Allez dans "Démarrage/arrêt" sur SteamVR et dans les les applis de l'overlay de démarrage, il faudra sélectionner "SlimeVR Feeder App"
Vérifiez également dans les extensions, "slimevr" doit être activé.
THE END, Congratulations ! 🥳🎉
For any feedback or missing elements, you can contact me on contact@chefuichef.fr 😉