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Config Problems with 20*4 HD44780.

Discussion about LCD's and other related hardware

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ramsam
Posts: 1
Joined: October 18th, 2008, 12:30 pm

Config Problems with 20*4 HD44780.

Post by ramsam »

Hi.

At first i must say thank you 4 this awesome software!

As the topic says, i got a small problem though.

When i plug in my display in, i see the start screnn (powerup) and then the backlight comes.

So far so good.

But thats also the only thing i get, the backlight. I take my power from usb, so i swifted place of the 5V cable and the ground.

When i did, i got the display to show just the text, everything was fine! BUT i didn?t have the backlight...

So i dont really know what the problem is, i think it's important 4 you to know that i haven't changed anything in the LCD smartie 5.4 program either.

The ionly setting i have made are these:
ImageImage

Thank you for answers
/ Ramsam

caesar
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Re: Config Problems with 20*4 HD44780.

Post by caesar »

ramsam wrote:... I take my power from usb, so i swifted place of the 5V cable and the ground.

When i did, i got the display to show just the text, everything was fine! BUT i didn?t have the backlight...
Keep the position in which you get the text showing up and change just the cables that go to the backlight.

You must have wired the backlight + and - the other way round.

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