Can a segment LCD have a SPI interface

Post Reply
pcbdesigns
Posts: 35
Joined: Tue Feb 20, 2018 11:08 pm

Can a segment LCD have a SPI interface

Post by pcbdesigns »

Is it possible to build a segment display with a SPI interface? or is it a multiplex only?
LCD_Designs
Posts: 262
Joined: Thu Feb 22, 2018 9:49 pm

Re: Can a segment LCD have a SPI interface

Post by LCD_Designs »

Yes, it is possible to have an SPI interface

the lowest cost segment option is a 4:1, but requires many more I/Os than a 4:1.
A SPI requires a chip to be added to the LCD increasing the cost and the over all size of the glass.
Post Reply