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Topic: What's a good 2 line LCD to get? (Read 415 times) previous topic - next topic


I'd like to have some feedback (power, status, voltage, etc) on my current Robotics project, and another project that's on hold.  Rather than a bunch of LED's, I'd like to use an LCD display with a few lines of text.  I'd like a product that I buy to be well supported and I don't want to spend any more money than I have to.  For my purposes, it would be better if the product was not an actual shield or if it was that it had a remote wire kit/diagram, so I can mount it away from the Arduino.  The Arduino I am using in these projects is the Arduino Mega ADK, and on one of the projects, most of the first 12 pins are already in use, so something that doesn't use those pins, or can be moved easily, would be best.

I've seen LCD displays at Radio Shack and Micro Center and Fry's go for $35, yet I see other ones online for less than $10.  I've heard that some are a pain and some are really easy to use.

What is your opinion on a well supported LCD display that meets those above criteria?

These are some of the ones that I found:


If you don't mind waiting up to a month for shipping, these super cheap ones from china are perfectly sufficient. Just look up the wiring for a HD44780 and adjust your pot and it's good to go, pretty simple. I've gotten two from two different sellers and both were slightly different but same pinout and both work great.


those HD44780 are pretty much the most generic LCD display available and surely the most docummented.
you can always use them with those i2c or similar interfaces to save pins.

Nick Gammon

This one is pretty straight-forward:

http://www.adafruit.com/products/181   ($9.95)

Plus I would get the backpack so you can control it over I2C or SPI:

http://www.adafruit.com/products/292  ($10)

That way you only take up two or three pins (plus power and ground) leaving the rest free for other stuff.

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