I've just posted 2 very interesting pages on the ORbit16™ website.
One is about the PCD8544 library. The PCD8544 is a controller used in the Nokia 5110 and Nokia 3310 LCDs. The library is provided with full documentation. A document will show you the electrical connections of the display and the usage of the library. The library itself is capable to write to the display:
- Signed integers
- Unsigned integers
- Single chars
The library page, with full documentations, included the PCD8544 datasheet is located here:
a document will show the bitmap/icons drawing is also provided!
I've written also an usage example of this library, in this page: