Liquid Crystal Display (LCD) Manual
Document revision 04-Apr-2003
This document applies to the MikroTik RouterOS V2.6
DB25m | Signal | LCD Panel |
---|---|---|
1 | Enable (Strobe) | 6 |
2 | Data 0 | 7 |
3 | Data 1 | 8 |
4 | Data 2 | 9 |
5 | Data 3 | 10 |
6 | Data 4 | 11 |
7 | Data 5 | 12 |
8 | Data 6 | 13 |
9 | Data 7 | 14 |
14 | Register Select | 4 |
18-25, GND | Ground | 1,5,16 |
Powering:
As there are only 16 pins for the PC1602 modules, you need not connect power to the 17th pin
GND and +5V can be taken from computer's internal power supply (use Black wire for GND and Red wire for +5V).
WARNING! Be very careful connecting power supply. We do not recommend using external power supplies. In no event shall MikroTikls be liable for any hardware damages.
Note that there are some PowerTip PC2404A modules that have different pin-out. Compare:
From www.powertip.com.tw (probably newer one)
From www.actron.de (probably older one)
Some LCDs may be connected without resistors:
DB25m | Signal | LCD Panel |
---|---|---|
18-25, GND | Ground | 1,3,5,16 |
+5V | Power | 2,15 |
[admin@MikroTik] system lcd> /port print # NAME USED-BY BAUD-RATE 0 serial0 Serial Console 9600 1 serial1 9600 [admin@MikroTik] system lcd>
Please install the LCD module hardware into the PC accordingly the instructions provided by the module manufacturer.
The basic installation steps should be as follows:
Use the /system lcd set command to configure the type and to enable the LCD.
For Powertip parallel port LCDs:
[admin@MikroTik] system lcd> print enabled: no type: powertip [admin@MikroTik] system lcd> set enabled=yes [admin@MikroTik] system lcd> print enabled: yes type: powertip [admin@MikroTik] system lcd>
For Crystalfontz serial LCDs:
[admin@MikroTik] system lcd> set type=crystalfontz ERROR: can't acquire requested port - already used [admin@MikroTik] system lcd> set type=crystalfontz serial-port=serial1 [admin@MikroTik] system lcd> /port print # NAME USED-BY BAUD-RATE 0 serial0 Serial Console 9600 1 serial1 LCP Panel 9600 [admin@MikroTik] system lcd> print enabled: yes type: crystalfontz serial-port: serial1 [admin@MikroTik] system lcd>Note as You see, the first try to set LCD type failed because it wanted to use serial0 (that is commonly used for Serial Console) by default.
Argument description:
enabled - turns the LCD on or off
type - sets the type of the LCD (powertip, crystalfontz) serial-port - name of the port where the LCD is connected
[admin@MikroTik] system lcd page> print Flags: X - disabled # DISPLAY-TIME DESCRIPTION 0 X 5s System date and time 1 X 5s System resources - cpu and memory load 2 X 5s System uptime 3 X 5s Aggregate traffic in packets/sec 4 X 5s Aggregate traffic in bits/sec 5 X 5s Software version and build info 6 X 5s ether1 7 X 5s prism1 [admin@MikroTik] system lcd page> enable [find] [admin@MikroTik] system lcd page> print Flags: X - disabled # DISPLAY-TIME DESCRIPTION 0 5s System date and time 1 5s System resources - cpu and memory load 2 5s System uptime 3 5s Aggregate traffic in packets/sec 4 5s Aggregate traffic in bits/sec 5 5s Software version and build info 6 5s ether1 7 5s prism1 [admin@MikroTik] system lcd page>The output of the print command shows the number, time, and short description of the displayed information items. Use the enable command to enable the specified item, or the disable command to disable it.
Use the /system lcd page set command to set the display time for specified item.
[admin@MikroTik] system lcd page> set 0 display-time=10s [admin@MikroTik] system lcd page> print Flags: X - disabled # DISPLAY-TIME DESCRIPTION 0 10s System date and time 1 5s System resources - cpu and memory load 2 5s System uptime 3 5s Aggregate traffic in packets/sec 4 5s Aggregate traffic in bits/sec 5 5s Software version and build info 6 5s ether1 7 5s prism1 [admin@MikroTik] system lcd page>
Probably the selected serial port is used by PPP client or server, or by the serial console.
Check the availability and use of the ports by examining the output of the /port print command.
Alternatively, select another port for connecting the LCD, or free up the desired port by disabling the related resource.
Probably none of the information display items have been enabled.
Use the /system lcd page set command to enable the display.