msgpack.php VS TOTEM

That's enough theory, let's start coding! For these examples, we'll use the msgpack.php MessagePack library since it provides a convenient API to handle extension types. I hope you'll find these code examples easy to understand even if you use other libraries. Since I mentioned UUID, let's implement support for this data type as an example. To do so, we'll need to write an extension---a class to serialize and deserialize UUID values. We will use the symfony/uid library to make handling such values easier.

I recently encountered an interesting case. I was trying to optimize the MessagePack unpacking, but after testing the performance of the new faster (as I thought) version, it turned out to be slower than the original implementation. Trying to figure out which part of the code was causing the slowdown, I reran the tests with Blackfire and was surprised to see that the profiler reported a 30% improvement in the new version, which was the exact opposite of my results (read the comments on the linked issue to learn why). Note that this is not a problem with this particular profiler, most PHP profilers will do the same. So I decided to share this finding and encourage you not to blindly trust profilers and always do your own benchmarking, especially when you do such micro-optimizations.

Wired Totem from keeb.supply needs a reset every time I start my Win10 pc, otherwise it works as usual. it says "USB device not recognized". Tested on multiple pcs and cables. Asked on their discord but they haven't heard this problem before. Nuked and reflashed with the given files multiple times, checked again the soldering but didn't help. If it works perfectly fine after reset or connecting to an already running pc, what might be wrong? Is there a watchdog feature that sends a reset signal the moment it gets power? My repo.

You just need a new keyboard 🙃

I built a TOTEM[1] (same creator) and it looks stunning. Was a breeze to get manufactured (both PCB and resin printer case from jlcpcb, in my case) and assemble too!

The build guide is very informative and quirky, it has everything from tips in how to solder smd diodes to "use a sharpie to paint the PCB sides black so it looks nicer", way better than some expensive kits I've bought in the last few years!

1. https://github.com/GEIGEIGEIST/TOTEM

There are some pads on the underside of the XIAO controller that we need to connect to. The footprint that I am using here has plated through-holes with edge cuts with enough space to allow you to use a soldering iron from the bottom to solder the plated through-holes to the pads. This approach was borrowed from Totem so it should work but I am worried about manufacturing issues due to the DRC failures there.

Here you can find the PCB and case files and of course a buildguide. Here is a Hackster post covering my process. I hope it's ok to mention, that you can also buy complete kits on keeb.supply by now.

Thanks! The KiCad files are open source, you can figure out how to add a number row, I believe in you! build guide

design your own case – take a look at the bottom of GEIST’s TOTEM

add an extra pinky key – popularized by Jian and seen in Totem

as u/Tulip2MF mentions, GEIST did the TOTEM for SEEED XIAO challenge and showed it off with a clear case and keycaps