VK202-25 Matrix Orbital, VK202-25 Datasheet - Page 5

• Manufacturer Part Number: VK202-25
• Description: VFD ALPHA/NUM DISPL 20X2 SER/I2C
• Manufacturer: Matrix Orbital
• Series: VK202-25r

Specifications of VK202-25

• Outline L X W X H: 116.00mm x 37.00mm x 29.48mm
• Viewing Area: 89.75mm L x 11.50mm W
• Display Format: 20 x 2
• Display Type: Character
• Format: 5 x 7 Dots
• Character Size: 4.70mm H x 2.40mm W
• Interface: Serial
• Operating Temperature: -20°C ~ 70°C
• Product: Character Display Modules
• Character Count X Line: 20 x 2
• Module Size (w X H X T): 116 mm x 37 mm x 29.48 mm
• Operating Temperature Range: - 20 C to + 70 C
• Dot Format: 5 x 7
• Viewing Area (w X H): 89.75 mm x 11.5 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Number Of Dots: -
• Lead Free Status / Rohs Status: Details
• Other names: 635-1020

1. Refer to the diagram above and Figure 2-1 for the following steps.
2. Wire the connector to the power supply. On most connectors the RED lead will go to +5V and the
3. Connect the VK202-25 to the PC using the serial cable and adapter if required. Make sure the RS-232
4. Connect the power connector, making sure that the +5V goes to V+ as shown in Figure 2-2. Turn on the
Now you're ready to try it out.
1.5 Trying Out your VK202-25
The unit is connected to power and the PC and the display is on. You're ready to make sure it's working
properly.
If you type characters on the keyboard, they should now appear on the VK202-25 screen. Text will wrap
around to the next line when you reach the end of a line. A few common ASCII control characters work as
follows:
VK202-25 rev. 05
Character
BLACK lead to GND. See Section 2.1.1 for details.
unit is subjected to over-voltage or reversed polarity.
cable includes the required ground lead. There must be no voltage differential between the RS-
232 ground and the power supply ground.
power: the display should come on.
To experiment with typing text, run a PC terminal program, such as Hyperterm. Make sure it's
configured to use the correct port. Set the baud rate to 19,200.
CR
LF
+5V power
A 5 V power supply.
a PC with a spare RS-232 port (COM1 or COM2).
A 9 or 25 pin RS-232 serial cable. If you use a 25 conductor cable you'll also need a 9 to 25
pin adapter.
Hex value
0x0D
0x0A
Function
Moves cursor to beginning of the current line.
Moves cursor to the beginning of the next (or previous) line.
Figure 1-1 Connections for Testing
VK202-25
5
Note: The manufacturer's warranty is void if the
PC