This section talks about using LCDproc with the serial / USB LCDs CW12232 and CW1602 by CwLinux.
The CwLinux CW12232 LCDs are graphical LCDs with 122 x 32 dots that also have a text mode with 20 x 4 characters, the CW1602 LCDs are character LCDs that are 16 characters wide and 2 lines high.
The modules can be ordered bare or as part of a kit mounted on brackets that fit in half-height 5.25" drive bays. The mounting brackets optionally feature a 6 button keypad that makes use of the keypad connector on the display modules.
The kits allow to programmatically switch on/off their backlight. Newer revisions of the kits also have programmable brighness as well as 4 general purpose IO ports.
The CW12232 and CW1608 come in 2 variants that differ how they communicate with the host: The serial modules are connected to the PC using a serial RS232 connection getting operating power using the standard floppy drive power connector, while the USB modules only require an USB connection.
For more information see the CwLinux web site
12232
| 1602
}
Select the LCD model [default: 12232
; legal: 12232
, 1602
]
DEVICE
Select the output device to use [default: /dev/lcd
]
May be serial device or USB device in serial emulation mode.
WIDTH
x
HEIGHT
Select the LCD size [default: depending on model: 12232: 20x4
,
1602: 16x2
]
9600
| 19200
}
Set the the baud rate for communication with the LCD.
If not given, the default is 19200
.
yes
| no
}
Reinitialize the LCD's BIOS [default: no
; legal: yes
, no
]
normally you shouldn't need this
yes
| no
}
Tells if you have a keypad connected. Keypad layout is currently not configureable from the config file.
KEY
,
KeyMap_B=
KEY
,
KeyMap_C=
KEY
,
KeyMap_D=
KEY
,
KeyMap_E=
KEY
,
KeyMap_F=
KEY
If you have a non standard keypad you can associate any keystrings to keys.
There are 6 input key in the CwLnx hardware that generate characters
from 'A
' to 'F
'.
Legal values for KEY
are Up
,
Down
, Left
, Right
,
Enter
and Escape
.
The following it the built-in default mapping hardcoded in the driver.
KeyMap_A | Up |
KeyMap_B | Down |
KeyMap_C | Left |
KeyMap_D | Right |
KeyMap_E | Enter |
KeyMap_F | Escape |
You may leave it unchanged if you have a standard keypad. You can change it if you want to report other keystrings or have a non standard keypad.
yes
| no
}
keypad_test_mode permit to test keypad assignment Default value is no