This driver supports the serial “Mini-Terminals” made by Beckmann+Egle:


With LCD4Linux-0.10, the new CompactTerminals are supported, too:


These controllers provide a lot of additional features, and my be extended with various modules: (from left to right: key module, I/O module, LAN module)


Display <name> {
    Driver 'Beckmann+Egle'
    Model     <string>
    Port      <string>
    Speed     <number>
    Contrast  <number>
    Backlight <0|1>
    Icons     <number>

Modelsee below
Sizethe CT20x4 can control smaller displays, too. In this case specify <rows>x<columns> here (e.g. “16×2”)
Portserial device the display is attached to (e.g.'/dev/ttyS2')
Speedthe baud rate from the display must match this value. Possible values are 1200, 2400, 4800, 9600, 19200, 38400 and 115200
Contrastinitial contrast (0..15)
Backlightinitial backlight state (0=off, 1=on)
IconsNumber of user-defined chars reserved for Icons (default: 0)

The driver supports different displays, which can be selected with the Model parameter:

MT16x1!MultiTerminal 16×1
MT16x2!MultiTerminal 16×2
MT16x4!MultiTerminal 16×4
MT20x1!MultiTerminal 20×1
MT20x2!MultiTerminal 20×2
MT20x4!MultiTerminal 20×4
MT24x1!MultiTerminal 24×1
MT24x2!MultiTerminal 24×2
MT32x1!MultiTerminal 32×1
MT32x2!MultiTerminal 32×2
MT40x1!MultiTerminal 40×1
MT40x2!MultiTerminal 40×2
MT40x4!MultiTerminal 40×4
CT20x4!CompactTerminal 20×4

The driver provides the following functions (with a MultiTerminal only!):

LCD::contrast()return the current contrast value
LCD::contrast(n)set the contrast to <n> (0..15)
LCD::backlight()return the current backlight state
LCD::backlight(v)switch the backlight on (v=1) or off (v=0)
LCD::gpo(n)return the current state of GPO <n> (0..7)
LCD::gpo(n,v)set the GPO <n> to level <v> (0..255)
LCD::gpi(n)return the current state of GPI <n> (0..7)
LCD::adc()return the current value of the ADC input
LCD::pwm(v)set the PWM output to value <v> (0..255)

GPO: General Purpose Output \

GPI: General Purpose Input \

ADC: Analog/Digital Converter \

PWM: Pulse Width Modulation \

Display CT20x4 {
    Driver   'Beckmann+Egle'
    Model    'CT20x4'
    Port     '/dev/tts/0'
    Size     '20x4'
    Contrast  7
    Backlight 1
    Icons     1

  • beckmannegle.txt
  • Last modified: 2020/07/17 18:33
  • (external edit)