Instead of using wireless technologies or Bluetooth or anything like that, I would like to only work with wires like the Ethernet and USB cords. This way you can know that the machine has only ever "worked with" the directly linked machines, instead of things over the Internet or wireless networks.
I am not sure how this works though. The question is what are the broad level supplies to do this. From that I can figure out every little detail of parts you would need. But I'm not sure the scope of what it entails.
So far I think you would need:
- The basic board
- HDMI cord
- Ethernet cord
- USB mouse
- HDMI display
- USB keyboard
I am not concerned about the details like battery and power, I can figure that stuff out. I am just wondering what the pieces are to get the machine to work without an operating system of any kind (i.e. bare metal), without letting it be prone to the network.
Just with those supplies, it seems you should be able to start programming your machine without it ever needing to touch a network. I wonder if this is true, and/or what is missing. Also, this machine would never be plugged into a laptop, as that would indirectly mean it is connected to the wireless network.
It sounds like that is what is meant by this serial to USB concept.