Thread: using an alphanumeric display

Yeah most of the parallel ones are HD7780 chipset. I have a 40x2 VFD that runs on the same protocol and pinout. It is designed as a "drop-in" replacement. It does the 8 custom characters and everything. I'll sell it to you since I don't use it anymore.

well i was looking at the screens there and they are as much as 100 bucks. for that price its kinda getting into the relm of the non vga 7" display for 169. I was hoping to find someone that has bulit one and put it into there system. I'm on a budget using primarly existing parts ( but who isnt huh ). I already ruled out the 7" displays for now becasue of costs. maybe someone else has a suggestion?

thanks for the fast replies though you guys are awsome.

nice that would be awsome. yah posted the relay when i was still writing the other response. email me. i think i have it turned on at the moment

Ok, we can work out the details via email.

Screens that are serial or USB and ready to plug in to a PC can be pretty expensive, like you say, but you can get a bare 20x2 or 20x4 one for like $20. You have to make a proper cable to hook it up to the parallel port, which isn't too difficult - it involves a couple pots to control backlight and contrast, and maybe a resistor or two. I built my old system around a 20x2, and can help you out if you decide to go that route.

Make sure you get a transflective one for optimal daylight readablity (if you get the VFD this doesn't apply)

Llama, if derick doesn't want that VFD I might be interested

OMG he's hi-jacking the thread hhahahaa just kidding.

thanks for the offer. you both have mail.