I making a project like this. It's a smart hoop. Basically it converts BMP files on an SD card and draws it line by line to a WS2811 LED. It's simple but it looks cool.
So, I thinking about a convenient way to upload BMP files to the SD-card. Now I have to take the card out of a reader and upload files via a laptop reader. Also all my components are taped outside on the hoop tube as it's just a prototype. After I put it all inside getting the card out could be quite tricky. I'm thinking about a possibility to upload files wirelessly.
I've looked through the thing on internet and still haven't found a solution. Please help)