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If you already have an LCD panel working you can go straight to the software section.
In this project I will show you how to connect up a Nokia 5510 LCD to your Raspberry Pi. This LCD has a back light that can be switched on/ff using 3V to the backlight pin, but it also works well with no backlight. This LCD is very versatile and can display text in any font (as long as you have the .ttf file) and can also display bit map pictures and do basic animation.
This project does not require soldering and can be constructed using a bread board and jumper wires.
What you will need
In addition to your Raspberry Pi and associated peripherals you will need:
Using your jumper wire and breadboard connect the LCD to the Raspberry Pi as shown in Figure 1.
Figure 1: Connecting a Raspberry Pi to Nokia 5510 LCD screen using a breadboard and jumper wires
At the command prompt type the following commands to install all the required software.
Test the display by running one of the Adafruit examples programs:
If it's not displaying, or if it is too dark or too light you can adjust the contrast from within any of the above .py files. Edit the files using nano (e.g. nano shapes.py) and look for the following line:
Ad just the 45 to a higher or lower number until you have a nice clear image. Remember to save the file after you edit it using ctrl-x followed by y and then enter.
Now that you have your Nokia LCD screen working you can hook it up to the PrivateEyePi system by following this tutorial.