Meanwhile I'd recommend you "Udoo Neo" - a cheap microcomputer and microcontroller. I bought it a few years ago for something like 30 euros. It's technically a computer with WiFi connectivity so you can both program and use it at the same time. I had Lubuntu installed on it and controlled it throughout my phone and PC using VNC viewer or TeamViewer. What's even better is that it uses a micro SD card so you have no
de jure limit when it comes to space.
Still, you have plenty of choices.
