LCD mini message board with
backlight and enclosure.
Velleman Kit
Legen Heirweg 33
9890 Gavere
Belgium
USE OF THE BUILT-IN RS232 INTERFACE
The MK158 features a built-in RS232 interface you can use for uploading and displaying messages.
The terminal settings are : 2400 / N / 8 / 1 no handshaking.
Uploading a message
:
Hold ‘DOWN’ while turning on the unit.
The display will read
RS232
"
MK158
The unit is now ready to receive ASCII text via the serial port.
You can type in your message via a terminal program or you can use the Visual Basic program that can be downloaded
from our website at no charge.
G
Hint :
•
The end-of–message character is added and the unit starts displaying the message if you enter CHR$(13) (the
‘ENTER’ button).
•
The ‘pause’-character is added if you enter CHR$(196) (ALT 196).
Displaying a message :
•
Hold the ‘UP’ key while turning on the unit (if desirable, you can bridge the ‘UP’ button (SW1) permanently with a
wire-jumper so the unit will remain in this mode).
•
The display blanks.
•
The unit is now ready to receive ASCII text via the serial port.
•
You can type in your message via a terminal program or you can use the Visual Basic program that can be
downloaded from our website.
•
The text appears on the screen and scrolls from right to left while you are typing the words.
G
Hint :
The display blanks if you enter CHR$(13) (the ‘ENTER’ button).