Home > Arduino, Code > Arduino Code for Buffalo II DAC: LCD Connection

Arduino Code for Buffalo II DAC: LCD Connection

October 13, 2010 Leave a comment Go to comments

(Click diagram for larger view)

For a good tutorial in hooking up a “standard” LCD to Arduino and use the standard LCD library, see: LadyAda Tutorial on LCDs

The diagram shows the basic connections with a “standard” LCD that is also compatible with the current Arduino LCD library. Adjustment for the contrast is manual with a pot. As shown, there is no adjustment for brightness. The LCD will always be at full brightness.

You can adjust the brightness by limiting the current through the GND pin of the LCD (pin 16) with the following circuit. Adjusting the pot will increase or decrease the brightness of the LCD.

  1. pe
    January 13, 2011 at 19:26

    HI, missing from diagram:
    Great project!

  2. Hifiduino
    January 14, 2011 at 00:09

    Hi pe, you are right! thanks…

  3. avr300
    October 17, 2011 at 20:04

    Not all display back light are 5 volt tolerant. White back light (lightbox) typically is around 4v max.

    Always check data sheet and insert the necessary current limiting resistor.

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