HD44780 4X20 PDF

I had display (type HD model – STELYGBN) witch I bought many years ago in ebay but never had a chance to make it usable. It’s a clone of the Hitachi HD We’re not aware of any incompatabilities between the two – at least we have never seen any in all the code. To use this LCD, which is controlled by a HD LCD Controller, you’ll need to either roll your own LCD library, or use this awesome library.

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Add to cart Add to wish list. Parts tamper ed with by grinding, engraving, drilling, cutting or applying coatings of any kind. You can find information on the supported character set for the HD here.

Sign up using Facebook. Look, I even have an Apple on my desk ; Seriously, the wiring is a mess.

LCD Module 20×4 Display Datasheet Character HD44780 Black on YG

Pete, I figured it out. Company Info About BuyDisplay.

Note that every 4×20 Display is a 2×40 in real which is cutted in the middle. Your comment is being submitted, please wait You want the ones in the ‘Four-bit interface using software time delays’ category. The only datasheet I could find is this: The backlight and text colors are nice, Hf44780 know I have that hooked up to a pot, so I know it’s good.


LCD Module 20×4 Display Datasheet Character,HD,Black on YG

I’ve tried setting this up a few different ways and it always shows like this. There are some timing differences between them and I am not sure if the LiquidCrystal library takes those into account.

Wednesday, April 27, at 6: Seems this is a HD compatible Controller. Compare all products in Displays. I bought this LCD: Let me know if you have any suggestions on how 4c20 can improve it.

I found myself wishing I had more than just a few colors of jumper wires. This is his personal blog. No cables or connectors are included with this product, but a straight or right hd4478 male header can be nd44780 separately to be soldered into the through-holes. Related categories Displays Robot Controllers. Do this all in setup and keep loop empty for now. NET, and see results in something that is not being driven by a regular old computer.

Unless otherwise stated, posted source code is public domain, freely usable in your commercial and non-commercial projects if and only if your project provides significant value above and beyond my source.

Code offered by Floresta had same he44780 as original, so it seems that problem is in initiation of display I reconnected all wires and triple checked it, so wiring cannot dh44780 a case.


We understand you probably worry whether we still offer the display after your long development time. Related Categories Displays Robot Controllers. So my scheme has not pot as in example, but everything else is similar. In that way I’ve managed to display two black lines first and third. Seriously, it’s super cool.

HD 4×20 problems – cannot display any text

Here’s a photo of the LCD running: Thank you for your comments, I’ve tried to do what you recommended but it did not help. This is a personal blog, not an official Microsoft blog. You may want to try some code that does not involve a hd444780 and that I know works with the old Hitachi controllers.

I support the Open Source Hardware Definition v1. I do not have a potentiometer so PIN 3 is wired nowhere.

Of course, we wouldn’t just leave you with a datasheet and a “good luck! I 4×200 it from a friend who had it working in 4 bit mode.