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Basic 16x2 Character LCD - Yellow on Blue 5V

sku: LCD-00790 RoHS Compliant In Fritzing Library In Eagle Library

Description: This is a basic 16 character by 2 line display with a Blue background and a Yellow backlight. Utilizes the extremely common HD44780 parallel interface chipset (datasheet). Interface code is freely available. You will need ~11 general I/O pins to interface to this LCD screen. Includes yellow LED backlight. These modules are the thin type.

Dimensions: 3.15" x 1.425" x 0.300"

Documents:

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images are CC BY-NC-SA 3.0

ASCII version

Comments 7 comments

elwalto | about 2 years ago 2

I bought this LCD, but it is almost impossible to read. It is not nearly as bright as the one in the picture on spark fun. I tried adjusting the contrast to no avail. Am i doing something wrong?
elwalto | about 2 years ago 2

Oh, it looks like this LCD has a back light, don’t i feel stupid.
bryank | about 2 years ago 1

Sparkfun tech support was super helpful, no complaints there, however if you can get the LCD this bright then it is your lucky day because my product is barely readable :( Might try the white on black LCD?
- N8B | about 2 years ago 1
  
  I have found that the Black on Green LCD is easier to read:
  https://www.sparkfun.com/commerce/product_info.php?products_id=9568
  Sometimes it takes a minute or two to get the back lighting just right on these screens.
bryank | about 2 years ago 1

Lucky for me my LCD happened to have other unexplainable problems by Sparkfun’s tech support. They offered me a new LCD so I will be getting the white on black version. Sparkfun’s techsupport and customer service are the best I have ever experienced!
Joe | about a year ago 1

for PIC directly, but you can implement driver for any microcontroller easily using mine as a base…
its just digital output high/lows so lol
http://joekwuen.blogspot.com/2011/02/project-hd44780-textual-lcd-driver-for.html
Sleepisfortheweak | about 10 months ago 1

This LCD is a lot brighter if you swap the 100ohm (R7) resistor on the back with something like a 10ohm.
I had the same brightness issue others seem to be having so I checked the datasheet. The backlight LED has a pretty high forward voltage and current that the included 100ohm doesn’t really drive from 5V. With 10ohms, the current draw is more like the datasheet spec – 90mA at 5V.