As I read around, I found this guide: https://github.com/raystream/CubeCell_Getting_Started
This guide is helpful, but I did not see you guys mentioned that can I use a normal USB-UART like FTDI basic board to communicate to the Cubecell or not? It happened that I bought a Cubecell capsule from Aliexpress and they shipped without the debug board.
And how this guide is related to this guide?
Can we code directly the Cubecell by Arduino IDE or just upload the firmware?