Where can I get some cheap GLCD's? The ones I saw were in the range of $20-25 and I was looking for something in the $10-15 (or lower) range.
How many will you use? 1? 100?
Perhaps you should narrow down "GLCD" a bit. It would cover everything from 64x64 monochrome from the front of old Nokia cell phones to QVGA with lots of color depth.
For one or a few, poke at eBay and/or the surplus electronics sites.
You can put lipstick on a pig, but it is still a pig.
I've never met a pig I didn't like, as long as you have some salt and pepper.
BGMicro has 128x64 GLCDs for $9.95 (USD), each.
Thanks Lee and Jay. I was just looking for a couple for hobby projects.
Jay, that looks good, has anybody used that with an M48?
I also saw the Newhaven Display to the left of this site.
It uses dual KS0108 drivers, each driver driving 1/2 of the display. This is common, and there should be lots of driver examples around.
Note the "Fine Print". This is a surplus item because of its Backlight. The data sheet says it needs 470 mA! This is not a problem for a line powered project, but is a show stopper for a battery powered project.
Newhaven has a few nice COG displays.
Like these http://www.newhavendisplay.com/index.php?main_page=index&cPath=3_113
but I guess you already found them.
They have one COG character module I really would like to use, but shipping is $68 for a module of $11 :cry:
What is a COG display? Doesn't it mean chip on glass or something?
Several GLCD here:
Thanks, Cliff. I am assuming they ship to the US as well.
Thanks for pointing out the fine print. Wow 470 mA is too high for my battery powered project. I will look at other options. Can I use it without the backlight (like the way I use the LCD to save power)
for a couple for hobby projects.
For a small number you may wish to get one with a known, smaller, LCD, LED Backlight drive current requirement.
You can use them without the BL, but they are more readable with the BL on.
Spark Fun has a 128x64 GLCD, Here , which I have used. I can't see the BL current in the data sheet... but I know it is much less that 470 mA!
I've been playing with the GLCD from BG micro and just happen to have it setup, so I took some photos with and without the backlight.
I limited the backlight current to 150ma and as you can see its fairly bright. The brightness starts to ramp up at around 100ma and beyond 150ma it increases some but it doesn't seem to be as noticeable as the ramp up from 100 to 150ma.
I know the Datasheet states 470 ma as "typical" but I don't think it really needs that much.
It's a neat little display for the money.
Wow that is a neat setup,Bill. Which AVR do you use for this?
I'm using a BBB board from Modern Devices which uses a atmega328.
See this thread on the modern device site:
for the full details and photo of my setup.
Interesting project. Thanks for the link.
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