Question about CFA-634

[DestroyerX]

Hi,

I had a question the CFA-634 LCD.

I'm somewhat new to serial LCDs and was looking for a simple, serial one I could hook up to my OOPic-R microcontroller. Would the only connections I'd have to make be the LCD to one I/O line on the OOPic-R, and a separate power supply for the LCD?

How would I control the backlight?

Thanks for your time,

Jason

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[CF Tech]

For the CFA-634, all you need are Ground, +5v and the OOPIC's Tx line.

The backlight just needs +5v and can be controlled by software command.

 

[DestroyerX]

Oh, ok, that sounds pretty simple. I have one question though; when you say the tx line, can I juts use an I/O line, or do I need to look on the OOPic board for a special transmitter line?

Thanks again,

Jason

 

[CF Tech]

You will want to look for something like "RS-232 Tx" or "UART Tx".

 

[DestroyerX]

As you can see on,

http://www.oopic.com/connectr.htm

the OOPic-R has a standard 9-pin serial port built in. Would I hook the LCD up to this?

Thanks,

Jason

 

[CF Tech]

Might be able to just use a WR232Y01:

Check in the data sheet under "connecting your LCD" to make sure the pin-outs match. It will probably be fine if the OOPIC's serial port is a male.