Bluetooth dongles are pretty cheap devices, and nowadays, many PCs have them built in. However, as I’ve consolidated a number of my self-hosted services into one machine, the migration process has come across a few hiccups along the way. One of those relates to Bluetooth; the machine my Home a**istant box had previously been running on had an easily-passed through Bluetooth adapter to the Home a**istant VM, but the new server I’ve migrated to doesn’t. That’s when I realized that I could turn the Makerdiary nRF52840 MDK into a Bluetooth dongle.