The instructions and online support need to be much better. It is not easy to find or load the drivers needed to configure the screen for use. If you have a degree in computer science, then go ahead and purchase this. If you expect to configure the screen easily by following simple well-written directions, you may be very frustrated, to the point where you return this product (like I did). Keep searching for a plug-and-play option instead.

Downloaded the driver / demo python code for the Pico version of the display from the Waveshare website and worked right off the bat. Be sure to get the Pico version of the sample code. There are other microcontroller versions out there. Pleased with the display and the touchscreen.

This screen (the 3.5 inch version) will work with a Raspberry pi pico, but will NOT with the w version (wifi). It requires too much buffer memory. The screen buffering has to be split into two parts for micropython to handle memory. That isn't a problem with C. So, if you want to use this with micropython it will work, but you have to be frugal with coding as there isn't much space left for it.Color space (RGB565) is mapped a bit wonky imho. You have to remap colors to show any kind of raw image using micropython. Again, that isn't a problem with C.The sd card library also works. Be aware it only likes 8 or 16gig micro SD cards. Be sure to format for fat32 and you won't have any issues.I decided to split my project up into two Raspberry pi picos, one without wifi running the screen, the other (a pico wh) connected via UART running other hardware just to get my project working. This is not the preferred way, but if you need a color screen this size (3.5 inch) with an sd card, and you use micropython, splitting the workload into two microprocessors is one way to do it. It's a waste, but Raspberry pi picos don't carry much sram, so it is what it is.The screen works fine, but be aware of the limitations and lack of support for using it with micropython due to its hunger for memory.One star removed for the touch screen. It's a bit buggy, and mine mapped put coordinates a bit crooked. Also, and it's an issue: Pressing on one area may trigger an interrupt in an adjacent area of the screen. You have to code a loop to ensure it passes your intended coordinates or you will end up pressing on one area to activate another.The seller is accommodating and took my feedback about issues surrounding the coding problems. Hopefully they will update their listing to reflect a more detailed explanation regarding the memory requirements and limitations surrounding micropython code with this particular screen.

I paired it with a Raspberry Pi Pico W. I used it to make a custom clock for a friend. The drivers were a bit hard to setup compared to some of the other displays I have used, but I like that it all fits together nicely. Now I just need to design a case for it all and get it 3d printed.

Mangelhafte Dokumentation und mit Circuitpython nicht verwendbar