Got me a 2x24char LCD for 9.95...

C

Cameron

New member
And now im having a little truble wireing it up.

Not to help the fact that my soldering iron just died, I cant even figure out what brand the LCD is. The controler is HDD44780. on one side I have pins 1-14, no problems there. On the other side I have two spots with wires soldered on, and one of them needs to be +5v and the other is ground. Problem is I have no idea which is which, and i dont want to fry my LCD. Any ideas? Here is a pic of what I mean.



Edit woops linked the wrong pic :rolleyes:



I just need to know which one is +5v from above pic, and which is gnd.

And if anyone can figure out what company made it that would be great... heres a pic:


-Cameron
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X

X7JAY7X

New member
This is how it should be

1 = GRND

2 = V+

3 = Vo (contrast)

4 - 6 = RS, RW, E

7 - 16 are data pins



The two on the other side are usually for the backlight.
 
C

Cameron

New member
Problem is the blacklight, which is ground and which is power... yellow and red wires. slightly unconventional, black shoulda been ground... :p

-Cameron
 
X

X7JAY7X

New member
If it is a LED backlight, hooking them up wrong will not hurt it. I wouldnt use a real high current power source to test.

LED = Light Emitting Diode

Diodes only let power through one way. It will block power the other way up to a certain amperage.


Are you sure it is not an EL backlight?

Did you try putting power to it? What happened?
 
C

Cameron

New member
Turns out its not backlit at all :p but I did get it wired up, now my problem is getting a program to actually send data to it. It starts up with the top row of characters all blacked out, so im assuming thats the test screen.

-Cameron
 
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