“Lovely form factor for mini projects and way better software support than the similar XIAO2040 (Seeed has terrible software QA with broken abandonware). If you're going for a mini 2040 device go for the Pimoroni variants as they'll just work and have up-to-date libraries.”
“I received these for use in my DIY keyboard. I chose the headered versions because I had managed to kill a headerless one soldering headers, so I figured I may as well leave some of that work to someone who knows what they're doing. They work perfectly, although at the time of writing I think you need to use the develop branch of QMK for support for RP2040-based boards such as this. The headers only cover the two sides as pictured, and if you happen to need the three bottom pins, you gotta solder those yourself. :)”
