“Very useful, tiny board. I needed a project with 4 ADC inputs and this fitted the bill for a very reasonable cost.
One little quirk though, the onboard LED is not a true WS2812 pixel. If you use the Micropython neopixel library to drive it then you will need to swap the Red and Green values in (R, G, B).
I presume it is now replaced by the RP2350 One, so even better performance for the same cost.”
“Get this NOT the RP2040 USB. it is similar to the RP2040 but the led is one colour, its a little bigger and there is almost no documentation on the internet.
The only plus for the USB model is all components are on one side so it can be surface mounted. It's also slightly cheaper.
Waveshare docs are really good and build quality is better.”
“It's a great little device.
One gotcha is that of course it's possible to insert it the wrong way around, which unfortunately led me down some unneeded diagnostics.
The LED is a neopixel. Don't try the generic samples that treat it as a regular LED. Also, unneeded diagnostics there for me as well.
Overall, a fantastic device to tinker with.”
“A nice form factor for a raspberry Pi Pico since it will fit directly and be powered from a standard USB port
The boot and reset switches are a bit fiddly and could be better marked. Also the LED is a full WS2812 LED meaning a PIO is sacrificed to light it, but it doe allow you to set it to multiple colours”
“Great little device for small projects. The Waveshare website has some decent documentation to help with example code and accurate measurements to help in 3D printing cases etc. As mentioned there is a built-in RGB-LED and temperature sensor too. All for a really great price.”
