You can buy a Nordic Semiconductor NRF52840-DONGLE.
There you can try out different bluetooth profiles through the graphical application (plugged into the same computer, even) or flash it and make a simple standalone device with just power. It has built in LEDs and a button, you don't have to solder anything to play around.

Classic DEV Post from Mar 25

Don't Make This Async/Await Oopsie!

There's this little oopsie beginners make when they first use async/await

I'm never sure what to put in a bio. If there's anything you want to know, don't be afraid to ask!

Sore eyes? now has dark mode.

Go to the "misc" section of your settings and select night theme ❤️