I have an ESP-01 module lying around, but I'm a bit tired of wiring it up a breadboard again. So here is a little "devboard" I whipped up on a 4x6cm protoboard and hot-glued to a business card holder.
Now it's plug'n'play - add power and plug in a USB serial adapter and I'm good to go.
As always, all notes, schematics and code are in the Little Arduino Projects repo on GitHub.
