What is better for segment LCD: spi or 4:1

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Redesign
Posts: 19
Joined: Fri Mar 09, 2018 10:09 pm

What is better for segment LCD: spi or 4:1

Post by Redesign » Mon Mar 18, 2019 5:06 pm

What is a better interface for a segment LCD?

LCD_Designs
Posts: 262
Joined: Thu Feb 22, 2018 9:49 pm

Re: What is better for segment LCD: spi or 4:1

Post by LCD_Designs » Thu Mar 21, 2019 7:56 pm

SPI and 4:1 is both good. one is not better than the other.

4:1 is lower cost, but cannot drive as many segments
SPI requires a controller/driver chip that increases its cost, but allows more segments to be driven and at a faster refresh rate than 4:1.

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