Do I have to use the RW if I am only writing to the display?

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proto
Posts: 26
Joined: Tue Feb 20, 2018 11:07 pm

Do I have to use the RW if I am only writing to the display?

Post by proto »

I am programming a 16x2 character LCD. I don't need to read the display, only to send information to it. So, do I have to connect to the R/W pin?
LCD_Designs
Posts: 262
Joined: Thu Feb 22, 2018 9:49 pm

Re: Do I have to use the RW if I am only writing to the display?

Post by LCD_Designs »

No. The R/W (Read/Write) is used if you are talking to and then requesting info from your display. If you are only writing to your display, then set the R/W to ground and move on.
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