====== LPH7508 ======

{{:LPH7508.jpg}}

[[http://www.pollin.de|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|serdisplib]] driver or the 'native' LPH7508 driver.

The display has some symbols, they can be used as [[:widget_gpo|GPO's]]

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===== Display Section =====

==== serdisplib driver: ====

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


see the [[:serdisplib|serdisplib]] page for (hopefully) more detailed documentation...

==== native LCD4Linux driver: ====

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


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===== Parameters for LPH7508 driver =====

|**Driver**|'LPH7508'|
|**Port**|parport device the display is attached to (e.g.'/dev/parports/0')|
|**Font**|'6x8'|
|**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 [[:widget_gpo|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 =====

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


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


----