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 ...

Building a smart home requires a variety of devices; you may not need the expensive off-the-shelf smart ones. Instead, you can assemble inexpensive temperature or humidity sensors, smart buttons, ...

How do headphones, toys, gadgets and other devices talk to each other without any wires? Many of them connect with Bluetooth.