Before and after I made the door system at the #makerspace ✨different✨.

The RFID reader ended up dying on us, and replacement readers weren't getting along with the ancient custom-built door system. Thankfully, we had an extra #Arduino Uno laying around to bypass the legacy control circuitry (we lost the original source ages ago).

It just needs to last until the lease expires in 5 months, then it can catch fire. For the time being though, this Arduino is load-bearing infrastructure