Hello, First, a brief explanation of what I'm trying to achieve. I need a long-range wireless connection from Udoo to my computer. Right now I use for that a 433MHz module that connects the integrated Arduino to my machine via a Serial interface (emulated by an FTDI chip), so that I can send the data back and forth. Now, I would like to do the same, but connect to the ARM part (that runs an OS). Ideally I would have the same serial interface on Udoo's Ubuntu as on my own x86 Linux machine and communicate to that Serial interface from the latter. Is it possible? Do we have some pins I could the same wireless chip I used on Arduino connect to? Otherwise, I can imagine I would have to use some usb dongle that connects wirelessly to another one that I stick into my x86 machine. If the first option is not possible, I would appreciate for any advice about such USB devices, especially about the ones that could emulate Serial interface, because I already have quite some code ready that reads and sends data from/to Serial interface. Thank you very much to everyone reading this post in advance for any help.