Slimevr Firmware Tool

[Cameron Fluet]

SlimeVRis a set of open hardware sensors and open source software that facilitates full-body tracking (FBT) in virtual reality. With no base station required, SlimeVR makes wireless VR FBT affordable and comfortable.

The base set of five trackers is sufficient to cover lower-body movement (legs and waist) and is widely supported by VR games and applications. VRChat, NeosVR and LIV can use additional SlimeVR trackers to monitor the position and rotation of your feet, knees, elbows, chest, and more!

Your comfort is our primary goal. SlimeVR trackers are lightweight, easy to wear, and entirely self-contained. Because they do not depend on cameras or base stations, they are able to track a wide range of motion without ever being occluded, or blocked from view, in a way that would cause external sensors to lose track of them.

Support for Full-Body Tracking depends on the game and its developers. Currently, only VRChat and VRWorkout support Full-Body Tracking with SlimeVR on Oculus Quest without the need to run the game on a PC.

The precision of SlimeVR and HaritoraX tracking technology depends on your setup, on the plane used for measurement, and on how your back bends.

AprilTag requires additional waist tracker with a phone or other tracking technology (has reliable 180 coverage without).

The base set of five trackers is sufficient to cover lower-body movement (legs and waist) and is widely supported by VR games and applications. However, with SlimeVR you can customise your experience in VRChat, NeosVR and LIV to track specific movements, allowing you to finely track the bones you want with additional trackers allowing you to track feet, knees, elbows, chest and more! Tracker Extensions are smaller, auxiliary trackers without batteries or Wi-Fi capability. They connect to a primary tracker by means of a wire and provide a simple, comfortable way to add additional tracking points.

SlimeVR is open hardware driven by open source software and is released under permissive MIT & Apache 2.0 licenses. This open design empowers the VR community to expand on the SlimeVR ecosystem, create new devices, add compatibility with new software, and improve upon all aspects of the project. For our part, we are focused on helping that community expand SlimeVR infrastructure by adding support for various devices, protocols, and features. We are part of an active DIY community, members of which build their own SlimeVR trackers, help others get into DIY electronics, contribute to our documentation, and develop hardware with different features and at different price points. All of our hardware is hacker friendly, and we encourage you to use it in new ways and adapt it to your needs! You can find documentation about our DIY kits on our website!

Our open source software and firmware is in our GitHub repository. We have guides and schematics for easy DIY and are working with the community to make them better, more accessible, and compatible with a wide range of hardware and tools.

Join our community on Discord to meet other VR hackers or to chat about SlimeVR. You can also find us on YouTube. And, if you have a question for our team, you can reach out using the Ask a technical question link below.

Production SlimeVR PCBs are fabricated and assembled by LZJ PCB, a contract manufacturer with whom we have been working for multiple years. IMU modules are produced by AssemTec Europe. Each board is tested at their factory and by us after the final assembly. ICOMold is handling injection molding for the tracker cases, and the final assembly is done by our team and an assembly company in the Netherlands.

"Virtual reality developers, gamers and enthusiasts may be interested in a new full body tracker gearing up to launch via Crowd Supply. The SlimeVR Full Body Tracker consists of a set of sensors and software for Full Body Tracking..."

Five SlimeVR Trackers and one Tracker Extension, enough to track the position and rotation of your waist (with improved precision), your knees, and your chest, as well as the position of your feet. Includes six straps and one USB Type-C cable.

Five SlimeVR Trackers and three Tracker Extensions, enough to track the position and rotation of your waist (with improved precision), your knees, your chest, and your feet. Includes eight straps and one USB Type-C cable.

Seven SlimeVR Trackers and three Tracker Extensions, enough to track the position and rotation of your waist (with improved precision), your knees, your feet, your chest, and your elbows. Includes 10 straps and one USB Type-C cable.

Seven DIY SlimeVR Tracker boards and three Tracker Extension boards, enough to track the position and rotation of your waist (with improved precision), your knees, your chest, your feet, and your elbows. This DIY kit includes only the boards and connecting wires for the Tracker Extensions. It does not come with enclosures, straps, batteries, or other accessories.

Did you know we have a web tool that can configure and build firmware for you and help you upload it to your Slime? Check it out, it supports selecting from multiple versions, including some coomunity forks!

This is the tool we're using at SlimeVR to test the boards that we've soldered. It checks the voltage rails, flashes the firmware and checks if the IMU is detected and working. It uploads it's reports into a web application for easy monitoring.

I tried to hold the pairing buttons and wait for it but blue blinking means its ready for pairing then it switches it to solid blue. After hard reset and new firmware upon connecting the device via microUSB it goes green but not trackable and upon restart it does not shut down remotely it is solid blue again with new start. To me it totally feels like that device is totally disconnected and beyond pairing. I really dont know what to do, so help. At the support i was told that there might be a diagnostic tool for the controller, i would like to know if the controller is over.

In order to connect and isolate multiple controllers, the system will pair the controllers with a unique identifier and will link this information to the tracking system. When one or both controllers are having pairing issues, releasing these settings will allow you to pair both controllers without interfering registries.

But while troubleshooting it over a week or so, I was able to get it to work for very short periods by hooking it up to the PC , doing the reset.. and then it may work for a minute or two.. and then disappear again.

After a week or so of troubleshooting.. I just ordered a new one. But I do think, since it happened out of the blue and that it could work for short periods, that it very well could be a software issue.

Im afraid that after watching people actually fixing them for themselves it has come to my attention that lots of the components are not well fixed in place in the very devices, but these videos surely showcased some of the more heavier uses of controller (which is not my case since it never fell not hit any obstacle in my studio) and misfortunes with the internal failures from cables snapping out of the boards to very bad trackpad , which i also noticed that is getting a bit lost, until it got totally blue death signal. So i can conclude from a standpoint of categorical elimination of software problems and step by step that it seems that the tracking and pairing is somehow lost on this one, and i have a working controller to prove the point, that if something would have to be with random it would surely catch the working one on same glitch lane, but even after reseting the working one it turns green numeroust times enough to be a good comparison to the lost controller, i just want to hear a possible few more explanations if something has been overseen.

Well did you try what I suggested? It fixed my left blue light controller for very short while. With SteamVR open, reset the broken controller via usb with a cable long enough to be in the tracked area. Then unplug and try to pair it. If I did that a bunch of times.. I could get it to work eventually for very short bit. And yes, my right controller and the rest of the gear all worked perfectly during this whole time. Also like you, my left also got lost occassionally beforehand. I just find it odd that mine was left too, got lost too, had a blue light too, and would originally work for a short bit after doing software related things (reset). It easily could be hardware.. but it still could be software too.

Good luck on your issue. I will be ripping my old controller apart at some point and will try to do an investigation.. I'll let you know what I find, if I find anything. Since mine worked sporadically near the end.. I am thinking it might maybe simply be a bad/loose ribbon cable as seen in this video.

I've ripped apart and fixed many a laptop, etc.. so this is child's play for me. If it is this for me, like in the video, then I bet your's is the same as well and then you could simply take your controller to a laptop or phone repair place, show them the video, and get them to fix it. What they show in the video, I would think any electronics repair place should be able to do.

Nothing happens after typing in unpairall? I had the same problem and I broke down and got a new controller 12-05-16 and the same thing happend to the new controller 12-06-17... Weird right.. please help cant really justify this hobby paying $170 for a single controller every year on top of all the games.

What do you mean when you say "Nothing happens"? There's no obvious change except that the controllers will no longer be paired. You won't get a message on the screen or anything. Can you explain what is happening with your controller?

Thanks,

-John C

The first thing I found weird about Meta Connect was the type of application that sometimes got focused on. Office 365 got mentioned not once, but multiple times. Probably the last thing that I think I'd put on a VR headset for at the moment would be to write a document in Microsoft Word. There may eventually be a market for some sort of productivity tools focusing on collaboration, but at the moment I'm not sure that I see much of an advantage to using the existing tools in VR.

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