ok, just got a new lcd screen (http://www.allelectronics.com/cgi-bin/category.cgi?category=365&item=LCD-97&type=store)
i’ve wired it up and so far i get: backlight + 5v running throughout, but nothing on the screen. i’ve checked my connections, re-uploaded MIOS and apps, re-wired a few things, and still have nothing.
one thing that worries me is that nowhere in the datasheet does it say HD44780 compliant.
i’m wondering what i should look for next?
one thing that worries me is that nowhere in the datasheet does it say HD44780 compliant.
Hi,
The datasheet refers to KS0066 as a driver and it should be HD44780 compliant. See also “Customer Comments” in that product page.
Bye, Moebius
Check the datasheet if the contrast needs negative voltage. Some LCDs do and the core is not designed for that.
Check the datasheet if the contrast needs negative voltage. Some LCDs do and the core is not designed for that.
i don’t see anything about a negavite contrast voltage.
oh well, i guess i’ll start over and re-wire the whole thing, maybe i missed something, or there’s a bad line or something.