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Author Topic: looking for cheap programmable displays?  (Read 1188 times)
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I'm a big newb when it comes to this so please bare with me.
I'm looking for a display that i can load text or image onto and then have it keep that image with just power running to it, does anyone know of a solution for this?
Does the Nokia Display have to have the arduino hooked up to it for the display to stay on it?
http://www.sparkfun.com/products/10168

to have a small lcd screen display what is loaded in my coke machine.
So for example I would take the screen out of the machine load the image or text (via arduino maybe?) then plug it back into the power source.
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I don't think you connected the grounds, Dave.
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please bare with me.
Not on a first date.
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No, those displays dont have any memory that will keep its data after power off.
You can use some displays from 4D systems, but by the price, you can get a simple barebones ARduino, only atmega chip, crystal, caps and V reg mounted in the back of that nokia display for less.
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smiley-sad i was afraid of that, ok. well i guess i'll have to stick with my paper inserts.
i would have to make five of them.
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Using an lcd to display a static image for ever is also note a very good use for them...
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Using an lcd to display a static image for ever is also note a very good use for them...

Actually it's OK. The liquid crystals are driven by AC generated inside the circuit so they won't be stuck as a bad pixel. Driving LC with DC voltage is bad but the circuit takes care of that already.

What you could do is as suggested, buy a cheap arduino to drive the LCD, like RBBB. Then you can have a magnetic sensor near the display. If you bring a magnet to it, you're pushing the magnetic button and the arduino cycles through 5 choices much like a list. How does that sound?
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What I wanted to say is if there will NO use for the display, them just use some glossy paper and print it, will actually have better resolution.
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liudr
that sounds pretty sweet,
i was thinking about going all out with a touch screen display and using a arduino to trigger the switches, BUT i'm not that good yet.
maybe one day.
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liudr
that sounds pretty sweet,
i was thinking about going all out with a touch screen display and using a arduino to trigger the switches, BUT i'm not that good yet.
maybe one day.

I use Hall effect magnetic sensor on my persistence of vision display:

http://liudr.wordpress.com/gadget/
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 smiley-razz Nokia 5110 at $7.5 $6.8 : http://iteadstudio.com/store/index.php?main_page=product_info&cPath=3&products_id=155&zenid=efscc20sp8decajjrr1r3pu8d0
 And a shield that make it easy with Arduino : http://iteadstudio.com/store/index.php?main_page=product_info&cPath=18&products_id=308&zenid=c6rgrsh9jksigfrkk6j5sp3sa1

 smiley-draw  [Disclaimer - This is our online shop]  - -After I reply the pose and now get a new 3x3 keypad shield that also compatible with Nokia 5110: http://iteadstudio.com/store/index.php?main_page=product_info&cPath=18&products_id=351

Still looking for some more idea of the shield using this 5110 screen ,may be a joystick with 2 circle button smiley-wink
« Last Edit: March 31, 2011, 02:54:59 am by ITead » Logged

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I think there should be a disclaimer there

Like: [Disclaimer - This is my own webstore]
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Most of the character displays (16x2 using "Hitachi" controllers, as support by the LCD library) will hold whatever you last printed to them.  I was doing some labs in a class, and the LCD on the eval board retained the display from "lab 2" all through "lab 3", even though lab 3 didn't use the display at all, and the microcontroller was completely reprogrammed with the lab3 code...
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It only hold the data if you don't disconnect power.
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It only hold the data if you don't disconnect power.
Yes... Nobody said anything about removing the power (apart from the example)
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