Driving a Simple Character LCD - Practical Raspberry Pi - page 78

world. Another reason why I like lcdproc is that it comes in the client/server model; you will see why that's a good
thing later on. Let's install the application for now. To install lcdproc, run the following command:
# yum install -y lcdproc
This will install the LCDd server and a client called lcdproc . Your first step should be to set up the LCDd server,
because no matter what client you end up using you must have the server running.
Server Configuration
The first thing you're going to need to configure is the LCDd.conf file: you can find it at /etc/sysconfig/lcdproc/
LCDd.conf.example . This file is just an example; I like to make a copy of it and strip all the unnecessary parts out so
that the LCDd.conf file matches my particular LCD. I will now go over all the options I have in my LCDd.conf file. Some
will be optional, some will have different settings, and some are mandatory for the LCD you are using. You can see in
Figure 4-19 a minimal config file that I use to run my LCD. You can also download a copy of the configuration file from
http://rpi.horan.hk .
Figure 4-19. My LCDd config file
Let's take a moment to understand what each of the config lines mean and what their effect is. You will also
notice that the config file has two main types of lines. One starts with a square bracket; these are section headings. The
other type is an option, then an equal sign followed by the setting. In Table 4-5 you can see what each setting in the
first section called [server] will do.