My lcd is called nokia 5110 lcd module. I got mine from ebay. There are a lot of people who sell it. Just pick the cheapest one Don't forget to check the rating of the seller.
Did you solve your battery problem yet? If not, this may sound really trivial, but do you have a resistor in line with your backlight connected to the battery?
Yes I do have a resistor in line with the backlight. It cannot run off cr2032 batteries because they are just not suited. I prefer a rechargable battery. Not many people have a lithium cell charger (I don't have one either), so when you have to change these cr2032 out all the time it will become quite costly.
I use a time library which uses the internal timer to keep track of time and date! There are two buttons for increasing and decreasing and one for the mode of those buttons. Sometimes they just act like 3 option buttons.
Sad news: This early prototype is not self-contained. Which means: There is simply not enough space for batteries. The cr2032 cannot supply enough current and they drain rapidly, so this is what I came up with: A small cable to a battery
This is obviously a very early prototype. When I want to shrink things down I'm gonna have to etch a printed circuit board and I'll be using SMD components. By shrinking down the components I need less power, so a single 3V cr2032 might do the job. I will also use a smaller LCD probably using only one LED for the backlight.
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Come on, man...
Don't forget to check the rating of the seller.
