I currently use a 4DSytems 5" display with a Teensy 3.2 board and Waveshare can transceiver. It seems to work quite well, but I feel restricted with what I can do due to the amount of time it takes to send data to the screen via a serial connection.
I'm not precious about what microcontroller I use, the only reason I opted for the Teensy was it's form factor and the fact it had CAN.
What would you guys suggest I do to move away from a serial HMI type display, and the expense of a 4DSystems display? Happy to consider anything.