PK202-25 Matrix Orbital, PK202-25 Datasheet - Page 32

• Manufacturer Part Number: PK202-25
• Description: LCD Character Display Modules Black Background Yel/Grn Text
• Manufacturer: Matrix Orbital
• Series: PK202-25r

Specifications of PK202-25

• Character Count X Line: 20 x 2
• Module Size (w X H X T): 116 mm x 37 mm x 25.73 mm
• Background Color: Black
• Backlight Type: LED Yellow / Green
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.1.13 Set RS-232 port speed (254 57 [speed]) (R)
ately. [speed] is a single byte specifying the desired port speed. Valid speeds are shown in the table below.
The display can be manually reset to 19,200 baud in the event of an error during transmission (including
transmitting a value not listed below) by setting the ‘manual over-ride’ jumper on the display controller
board during power up. This command is ignored until this jumper is removed again.
6.1.14 Set Serial Number (254 52 [byte1] [byte2])
serial number using this one time only command.
face. The serial number may be set only once. Any future attempt to execute this command will result in no
change and the module will return to the originally set serial number.
6.1.15 Read Serial Number (254 53)
module as it was previously stored.
Matrix Orbital
This command sets the display’s RS-232 port to the specified [speed]. The change takes place immedi-
Modules may be delivered with the serial number blank. In this case the user may set the desired 2 byte
Upon the execution of this command, the module will echo these two bytes back over the RS-232 inter-
This command will return a 2 byte hex value, over the RS-232 interface only, the serial number of the
GLK24064-25 - 0x15
VK204-25 - 0x0F
LK204-25 - 0x09
VFD2041 - 0x0C
LCD0821 - 0x01
LCD4021 - 0x06
Speed Value
Table 14: Module Values
Table 15: Speed Settings
FF Hex
0F Hex
81 Hex
20 Hex
GLK12232-25 - 0x22
GLC12232 - 0x10
LK404-55 - 0x0A
LK162-12 - 0x34
LCD4041 - 0x07
PK202-25 - 0x
PK202-25
19200 baud
1200 baud
2400 baud
9600 baud
Speed
GLC24064 - 0x13
VFD2021 - 0x0B
LK402-12 - 0x33
LK202-25 - 0x08
LCD2041 - 0x05
VK202-25-0x0E
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