Assuming that the project does not require multidrop or long wiring runs, you can connect our displays directly to a differential serial port like RS-485 or RS-422. All you need to do is connect one of the RS-4xx data lines to the display' SER(ial In), and tie the GND lines together. That's it.
Almost it: You have to pick the right data line. For most of our displays, you want the inverted line (TxD-); but on some newer displays such as the GLO, SGX, or BPP-440L that have a serial-polarity jumper (Spol), you will need to pick based on the jumper setting.
- Spol installed/intact: Use TxD-
- Spol removed/cut: Use TxD+