LPH7508

Pollin Electronik sells these displays together with an interface board for the parallel port.

LCD4Linux supports this display sets with two drivers: You can either use the serdisplib driver or the 'native' LPH7508 driver.

The display has some symbols, they can be used as GPO's

Display Section

serdisplib driver:

Display <name> {
    Driver 'serdisplib'
    Port   <string>
    Model  'LPH7508'
    Font   '6x8'
}

see the serdisplib page for (hopefully) more detailed documentation…

native LCD4Linux driver:

Display <name> {
    Driver     'LPH7508'
    Port       <string>
    Font       '6x8'
    Contrast   <number>
    Foreground <color>
    Background <color>
    Basecolor  <color>
}

Parameters for LPH7508 driver

Driver	'LPH7508'
Port	parport device the display is attached to (e.g.'/dev/parports/0')
Font	'6×8'
Contrast	initial contrast value, 0..31
Foreground	color of active pixels (RRGGBBAA or RRGGBB), default is opaque black '000000ff' (see Colors for details)
Background	color of inactive pixels (RRGGBBAA or RRGGBB), default is transparent 'ffffff00' (see Colors for details)
Basecolor	color of virtual backlight (RRGGBB), default is white 'ffffff' (see Colors for details)

GPO's

The display has some symbols which can be controlled by GPO's:

Symbol	GPO No.	Description
Battery frame	1	on/off
Battery level	2	bit field: first segment = bit 0, second = bit 1, …
Earpiece	3	on/off
Triangle	4	on/off
Speak	5	on/off
Message	6	on/off
Antenna	7	on/off
Signal level	8	bit field: first segment = bit 0, second = bit 1, …

See the GPO widget for how to use these symbols.

Plugins

The LPH7508 driver provides the following function:

LCD::contrast(n)

set contrast to n (0..31)

Examples

Display LPH7508-native {
    Driver  'LPH7508'
    Port    '/dev/parports/0'
    Font    '6x8'
    Contrast 15
}

Display LPH7508-serdisplib {
    Driver 'serdisplib'
    Port   'PAR:/dev/parports/0'
    Model  'LPH7508'
}