I finally had some time to sit down and assemble the badge. The accelerometer chips still didn't arrive, but I just desoldered one from some breakout board I found in my drawer. As usual, the QFN matrix controller chip didn't get soldered properly, and I had to desolder the matrices, fix the chip, and re-solder them back. Some traces got pulled in the process, but fortunately for unused pins of the matrices, so it's fine.
![](https://cdn.hackaday.io/images/1471681527790546762.jpg)
Of course my camera can't handle the brightness of the LEDs, so instead of red they appear yellow.
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