27923 Parallax Inc, 27923 Datasheet
27923
Specifications of 27923
Related parts for 27923
27923 Summary of contents
Page 1
... LCD Serial Backpack is a registered trademark of Scott Edwards Electronics, Inc.; BASIC Stamp trademark of Parallax Inc. All trademarked names referenced herein are the property of their respective holders. This manual in its entirety is copyright Scott Edwards Electronics, Inc., 1994—2000. Scott Edwards Electronics, Inc. ...
Page 2
Location of Connectors and Controls Figure 1 shows the major features and configuration options of the BPI-216 circuit board. Note: The Backlight switch has no effect on non-backlit models. The model (-L for backlit, -N for non-) is marked at ...
Page 3
Setting the Baud Rate Set the BPS switch down for 2400 baud; up for 9600. At either rate, the serial characteristics are no parity, 8 data bits, 1 stop bit. For more information on serial transmission, see the application note: ...
Page 4
Instruction/Action Clear Screen Scroll display one character left (all lines) Scroll display one character right (all lines) Home (move cursor to top/left character position) Move cursor one character left Move cursor one character right Turn on visible underline cursor Turn ...
Page 5
Defining Custom Symbols Most of the LCD characters (figure 6) cannot be changed because they are stored in ROM. However, the first eight symbols, corresponding to ASCII 0 through 7, are stored in RAM. By writing new values to the ...
Page 6
Program Examples Any computer/programming language that can produce serial output (2400 or 9600 bps, N81) can talk to the BPI-216. The examples here are in BASIC, chosen because of its popularity and readability. Don’t be put off by the size ...
Page 7
Program: BPKDEMS1.BAS ' This program demonstrates fundamental techniques of driving ' BPI-216 serial LCDs in BASIC from the BASIC Stamp I. It assumes ' that the BPI-216 is connected to I/O pin 0 of the Stamp, and ' that ...
Page 8
Dimensions The drawing below gives the primary dimensions of the 2x16 LCDs sold with our BPI-216N and BPI- 216L products. Three LCD manufacturers are listed, Truly, Data Vision (DV), and Powertip (PT), since we have at times used LCDs from ...