Driving a Simple Character LCD - Practical Raspberry Pi - page 79

Table 4-5. [server] section config options

Option Setting Effect

DriverPath /usr/lib/lcdproc/ Where LCDd will find the LCD drivers; the default path should be correct

Driver hd44780 Set this to hd44780 , because you are driving an HD44780 or clone LCD

Bind 192.168.0.199 IP address to bind to; you can use 127.0.0.1 too but it should be an IP

address that belongs to the Raspberry Pi

Port 13666 Port to bind to

ReportLevel 3 Syslog report level

ReportToSyslog yes Report to syslog enable/disable

User nobody

What user to run as

Foreground no Fork the process to background or let it run in the foreground

WaitTime 5 Pause time between each screen

The next section is not very important for your current LCD. This section is called [menu] and its main use is if
your LCD has a set of buttons. You can use this section to create a menu that is driven by the buttons on the front of
the LCD.
The last section is the driver you will be using. You can see it's called [HD44780] as that's the LCD you are using or
one of the clones. Take a look at Table 4-6 to see what each option will do.

Table 4-6. A list of settings for the [driver] section

Option Setting Effect

ConnectionType i2c How the LCD is connected

Device /dev/i2c-0

What bus to use in the case of I2C

Port 0x38 The address of the port expander found via i2cdetect

Size 18x2 Screen size of the LCD

DelayBus false Delays messages to the bus and may be useful under a high load

DelayMult 1 The multiplier for the above setting

Keypad no

Indicates whether your LCD has a keypad

Testing the Server
Now it's time to test the server. Save the above configuration file as /etc/sysconfig/lcdproc/LCDd.conf and test the
server by starting it on the command line with the foreground flag:

# LCDd -f