I am relatively new to building my own hardware but I am trying to understand a couple things about this board.
This board has 2 available UART ports and a I2C port from what I can tell.
When installing a Touch Screen the I2C port is populated.
My understanding of the I2C protocol is that it is a buss with multiple device availability for it.
So if I am understanding correctly I should be able to daisy chain multiple I2C devices off this port and they should all work as long as the devices don't share the same ID? I assume the UART is a specialized Serial port.
Also, I seem to be running into this concept that a hobbyist will run into very high costs in building boards.
I am thinking of building a board for myself and I would breadboard most of the work first, then using open source software design a board and make my own board to test out the design. Assuming everything works as intended then I can look at slowly ramping up production if there is interest. It would be a learning experience for me.