The following series of tutorials will show you how to connect LCD screens to your Raspberry Pi and run the software required to send messages to the screens. Below we have an overview of the functions we have implemented when linked to your PrivateEyePi system. 

LCD hardware and software tutorials: 

 - 26x2 charachter HD4470

 - Nokia 5510 84 x 48 dot matrix LCD

If you are planning to link your LCD panel to your PrivateEyePi system:

 - Install PrivateEyePi LCD software

Functional Overview

  

Function	HD44780	Nokia 55 10	Comments
Alarm Activity			Alarm sensor activity is display in real time as each event happens.
Alarm Armed Indicator			When the alarm is armed, using a tactile switch, an indicator is displayed all the time to show the alarm is armed. The HD4470 displays an "*" top right and on the Nokia 5510 it displays the status below the line at the bottom.
Temperature			Whenever a temperature reading is received it can be displayed in real time, or rotating through all temperature readings at 10 second intervals.
Temperature & Humidity			Same as the temperature reading except with additional information for humidity.
Display Alarms			When an alarm occurs the screen will display the Location that triggered the alarm. This message will stay on the screen until it is cleared by pushing the button.
Display Activity and Alarm Logs			Use the button to scroll through the last 10 alarm activity logs.