It's all over

Unfortunately, due to the worsening coronavirus situation in the local region, the university's decided to cancel our symposium, so we won't be able to demonstrate MoBIUS to many people.

But it works! After a last-minute struggle with the low-speed external clock (or more like lack thereof; we had to externally connect an LSE because we realized BLE won't function properly without it), we finally have the PCB transmitting and connecting properly. And with the casing assembled, we finally have a fully working device:

It's all over now. Time to get some sleep.