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Electronics => Projects, Designs, and Technical Stuff => Topic started by: avrfreaks on June 09, 2010, 08:43:13 pm

Title: Finding a good graphic LCD
Post by: avrfreaks on June 09, 2010, 08:43:13 pm

Does anyone know a good graphic LCD to use.

128x128, 128x64, Hi-Res, Blue Back-light: wanting to know a controller to use on LCD. ex: HD4470

 I am running this off 12V & 2A Rechargeable Batteries, and using a EXAR Function Generator Chip into a Arduino MEGA128 to calculate the frequency + load current. So LCD => 30mA.

Title: Re: Finding a good graphic LCD
Post by: TheDirty on June 09, 2010, 08:57:54 pm

Size? Resolution? Power use?  Built in controller?

Title: Re: Finding a good graphic LCD
Post by: EEVblog on June 10, 2010, 03:56:34 am

Any of these should work a treat:
http://www.newhavendisplay.com/index.php?main_page=index&cPath=21_96 (http://www.newhavendisplay.com/index.php?main_page=index&cPath=21_96)

The display takes like 200uA or so, it's the LED backlight that chews the power. I've run those displays with 5mA backlight current and it's still usable.

Dave.

Title: Re: Finding a good graphic LCD
Post by: migsantiago on June 10, 2010, 01:07:55 pm

I bought this one:
http://www.sparkfun.com/commerce/product_info.php?products_id=569

It's a Nokia 6100 color LCD with 128x128 pixels and it's controlled via SPI. You can build a buck-up supply to get 6V out of 3.3V and feed the LEDs. Its connector is very small and is a bit challenging to solder.

If you can't solder it you can get a break board that has it already soldered and also contains the buck-up supply.
http://www.sparkfun.com/commerce/product_info.php?products_id=8600

The bad thing about the breakout board is that it consumes 300mA or so.

There are libraries everywhere to control this LCD.