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4x40 Serial LCD with Terminal Features, Big-character Mode

 BPP-440; size 7.5 by 2.2 in.

The BPP-440 offers a terminal-style serial interface with these advanced features:

  • 1200 - 9600 baud serial input with 64-byte buffer
  • High-contrast, supertwist LCD screen
  • Serially controlled LED backlight
  • Output for a piezo buzzer that responds to the ASCII bell character
  • Large-character mode automatically generates 4-line-tall symbols (0-9 and A-Z)
  • Automatic right-alignment features for easy spreadsheet-style formatting of frequently updated data fields
Dimensional Data Basic Specs Control Characters Prices, More Info
 

Dimensional Data

 

A y offset edge to hole center (top & bottom) 2.50
B y pcb height 54.00
C y hole spacing 47.00
D y screen opening 29.50
E y character size 4.89
F x character size 3.53
G x offset pcb edge to hole center 3.50
H x screen frame 170.00
I x screen opening 147.00
J x hole spacing 183.00
K x pcb width 190.00
L y frame height 42.50
- mounting hole diameter 3.50
- frame depth (BPP-440N) 5.40
- frame depth (BPP-440L) 9.50
  • All dimensions in millimeters
  • Tolerance is +/- 0.50mm
  • Maximum depth (front of screen to highest point on pcb) is 26mm (BPP-440L)
 

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Basic Specifications

Power requirements 4.8 to 5.5Vdc @ 10mA max (100 mA max, backlight on)
User connector 5-pin header; 0.025" posts on 0.10" centers
Serial Input RS-232 or inverted TTL, 1200 - 9600, N81
Buffer depth 64 bytes
Operating Temperature 0° to 50° C
Storage Temperature -10° to 60° C
LCD type Supertwist (STN), gray-green
Optimum viewing direction 6 o'clock
 

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Control Characters by Function

ASCII Value Control Code ASCII Name Function
0 ctrl-@ NUL Null; ignored prior to buffer
1 ctrl-A SOH Send cursor home (position 0, upper left corner)
2 ctrl-B STX Begin big-character mode
3 ctrl-C ETX End big-character mode
4 ctrl-D ETO Hide cursor
5 ctrl-E ENQ Show underline cursor
6 ctrl-F ACK Show blinking-block cursor
7 ctrl-G BEL Pulse piezo buzzer output
8 ctrl-H BS Backspace
9 ctrl-I HTAB Tab to next multiple-of-4 column
10 ctrl-J LF Smart linefeed; move down one row
11 ctrl-K VTAB Vertical tab; move up one row
12 ctrl-L FF Formfeed; clear the screen
13 ctrl-M CR Carriage return; move to beginning of next line
14 ctrl-N SO Backlight on
15 ctrl-O SI Backlight off
16 ctrl-P DLE Accept cursor-position data
17 ctrl-Q DC1 Clear 4-line-tall column
18 ctrl-R DC2 Accept right-alignment data
19-26 - - All ignored
27 ctrl-[ ESC Escape; begin multipart instruction (below)
  • Define custom character: ESC D n B0 B1 B2 B3 B4 B5 B6 B7 where n is the character number (0-7) and B0 - B7 are bytes mapping the pixels.
  • Restore factory custom character set (used for ctrl-B large-characters): ESC E 1.
ESC instructions new in revision 4 and later (July, 1999).
 

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Links for Additional Information
Scott Edwards Electronics Inc.
1939 S. Frontage Rd. #F, Sierra Vista, AZ 85635
phone 520-459-4802; fax 520-459-0623
e-mail info@seetron.com