LK202-25-USB-R Matrix Orbital, LK202-25-USB-R Datasheet - Page 19

• Manufacturer Part Number: LK202-25-USB-R
• Description: LCD Character Display Modules Black Background Red Text
• Manufacturer: Matrix Orbital
• Series: LK202-25r

Specifications of LK202-25-USB-R

• Character Count X Line: 20 x 2
• Module Size (w X H X T): 116 mm x 37 mm x 25.73 mm
• Fluid Type: STN
• Voltage Rating: 5 V
• Operating Temperature Range: 0 C to + 50 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

4.1.4 USB Communication
capable of communicating via a USB interface. The USB communications are identical to the serial commu-
nications. Communication is via a virtual com port, which is created in the operating system by the drivers
necessary to install the USB display. The LK202-25-USB communicating via USB is capable of baud rates
of 19,200 bps to 115,200 bps. Other baud rates are subject to the limitation of the virtual com port driver. For
further information regarding supported operating systems, and driver limitations please contact technical
support.
4.2 Changing the I
4.3 Changing the Baud Rate
Matrix Orbital
The LK202-25-USB is a USB device that offers identical communication protocol as the serial comport.
Syntax
Parameters
Description
Remembered
Default
Syntax
Parameters
This command sets the I
and 0xFF. The I
address is automatically set to one higher. For example if the I
address is set to 0x50, then the read address is 0x51.
NOTE The change in address is immediate.
Always
0x50
Hexadecimal
Decimal
ASCII
Parameter
adr
Hexadecimal
Decimal
ASCII
Parameter
speed
2
C Slave Address
2
C write address must be an even number and the read
LK202-25-USB
0xFE 0x33 [adr]
254 51 [adr]
254 “3” [adr]
0xFE 0x39 [speed]
254 57 [speed]
254 “9” [speed]
Length
Length
1
1
2
C write address of the module between 0x00
Description
The new I
0xFF).
Description
Hex value corresponding to a baud
rate.
2
C write address (0x00 -
2
C write
15