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[on:]

Hello,

Have you any tracks for me to follow to be able to display a number (8 digits, from a computer or a Arduino card with a Keyboard) on a mini LCD (wire or wireless) and being able to take that lcd away with me?

I found an interesting topic on the old forum :

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1245690507

But as a very newbye I haven't enough experience to understand what I would need.

I have seen such display (which would be perfect) in a supermarket shelves for indicating prices.



TIA

[Reply #1 on:]

What do you mean by "taking it away with me"?

You're dragging this display on an arduino with a wire for how much distance? and why?

Paint us a complete picture of what you want to do so we can help you better. Maybe you don't need to drag the display but instead have a wire between arduino and a sensor but anyway, some details are needed here.

[Reply #2 on:]

I need to take the display with me without anything else.

It is just the same as the supermarket intelligent labels.

I need to program a message on a display and then disconnect that display and take it away with me. That display has to show the message enven taken apart from its base.

Is it clear?

[Reply #3 on:]

Interesting idea. Will the message have to change while you have it in your hand or does it change after you put it back to the arduino base?

[Reply #4 on:]

Needs to stay as it is as long as not back to the base for a change.

[Reply #5 on:]

OK, your display needs to have an on board power supply as the display will clear when removed from arduino and power. Maybe 4 AAA batteries with low-drop-out voltage regulator on an LCD shield. I've no idea who sells such thing though.

[Reply #6 on:]

I have seen such displays on Digital Calipers, they have button type batteries and they last for a long time also...

[Reply #7 on:]

Very different displays. The one you linked to can't be powered by a small coin battery. You should buy a couple of displays and try them out first.

[Reply #8 on:]

There are also eInk displays becoming available - set them and then they stay that way until told otherwise (as I understand it). They are a bit rudimentary at the moment, but that might be a way forward.

http://proto-pic.co.uk/products/E%252dPaper-10x2-Character-Display.html