Not long ago, I needed to drive multiple LCDs. There were several possibilities available. I could have used multiple microcontrollers – one for each LCD. Or I could choose a microcontroller with more output ports. Neither of the possibilities seemed economical or technically justified. My colleague Vlado showed to me a nice way to drive LCDs via the SPI bus [1]. Doing so also required a special library [1].

Content:

• PCB Multiple LCDs on the SPI bus