VK202-25 Matrix Orbital, VK202-25 Datasheet - Page 2

• 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. Introduction.............................................................................................................................. 4
2. Connections............................................................................................................................. 8
3. Displaying Text ...................................................................................................................... 14
4. Keypad Interface.................................................................................................................... 17
VK202-25 rev. 05
1.1 What it Does ..................................................................................................................................... 4
1.2 What it Does Not Do ........................................................................................................................ 4
1.3 Keypad Interface............................................................................................................................... 4
1.4 Setup for Testing .............................................................................................................................. 4
1.5 Trying Out your VK202-25 .............................................................................................................. 5
1.6 Trying out a Keypad ......................................................................................................................... 6
1.7 To Reset the module ........................................................................ Error! Bookmark not defined.
2.1 Connector Pinout .............................................................................................................................. 8
2.2 General Purpose Outputs ................................................................................................................ 11
3.1 General ........................................................................................................................................... 14
3.2 The Built-In Character Font............................................................................................................ 14
3.3 Writing Text to the Display ............................................................................................................ 15
3.4 Text Commands.............................................................................................................................. 15
4.1 General ........................................................................................................................................... 17
4.2 Connections .................................................................................................................................... 17
4.3 I
4.4 RS-232 Interface............................................................................................................................. 18
4.5 Keypad Commands......................................................................................................................... 18
1.6.1 Here's what to do: ................................................................................................................... 6
2.1.1 Power and I
2.1.2 RS-232 Communications ...................................................................................................... 10
3.4.1 Auto line wrap on (254 67) .................................................................................................. 15
3.4.2 Auto line wrap off (254 68) ................................................................................................. 15
3.4.3 Auto scroll on (254 81) ........................................................................................................ 15
3.4.4 Auto scroll off (254 82) ....................................................................................................... 15
3.4.5 Set cursor position (254 71 [column] [row]) ........................................................................ 15
3.4.6 Send cursor home (254 72)................................................................................................... 15
3.4.7 Turn on underline cursor (254 74) ....................................................................................... 15
3.4.8 Turn off underline cursor (254 75) ...................................................................................... 16
3.4.9 Turn on block (blinking) cursor (254 83) ............................................................................ 16
3.4.10
3.4.11
3.4.12
4.5.1 Auto repeat mode on (254 126 [mode] ................................................................................ 18
4.5.2 Auto repeat mode off (254 96) (R) ....................................................................................... 19
4.5.3 Auto transmit keypresses on (254 65)................................................................................... 19
4.5.4 Auto transmit keypresses off (254 79) ................................................................................. 19
4.5.5 Clear key buffer (254 69) ..................................................................................................... 19
4.5.6 Poll keypad (254 38) ............................................................................................................ 19
4.5.7 Set debounce time (254 85 [time]) ...................................................................................... 19
2
C Interface.................................................................................................................................... 18
Turn off block (blinking) cursor (254 84) ....................................................................... 16
Cursor left (254 76) .......................................................................................................... 16
Cursor right (254 77)........................................................................................................ 16
2
C Connections .................................................................................................... 8
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