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Smart Sensors and Applications Chapter 1: Parallax Serial LCD DisplayChapter 1: Parallax Serial LCD Display

Presented by: Presented by: Andy LindsayAndy LindsayParallax, Inc.Parallax, Inc.alindsay@parallax.calindsay@parallax.comom

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Copyrights and Trademarks

This documentation is copyright 2006 by Parallax Inc. By downloading or obtaining a printed copy of this documentation or software you agree that it is to be used exclusively with Parallax products. Any other uses are not permitted and may represent a violation of Parallax copyrights, legally punishable according to Federal copyright or intellectual property laws. Any duplication of this documentation for commercial uses is expressly prohibited by Parallax Inc. Duplication for educational use is permitted, subject to the following conditions: the text, or any portion thereof, may not be duplicated for commercial use; it may be duplicated only for educational purposes when used solely in conjunction with Parallax products, and the user may recover from the student only the cost of duplication.

BASIC Stamp, Stamps in Class, Board of Education, Boe-Bot SumoBot, SX-Key and Toddler are registered trademarks of Parallax, Inc. HomeWork Board, Propeller, Ping))) Parallax, and the Parallax logo are trademarks of Parallax Inc. If you decide to use trademarks of Parallax Inc. on our web page or in printed material, you must state that "(trademark) is a (registered) trademark of Parallax Inc.” upon the first appearance of the trademark name in each printed document or web page. Other brand and product names are trademarks or registered trademarks of their respective holders.

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LCDs in many LCDs in many common common devicesdevices

Chapter 1: The Parallax Chapter 1: The Parallax Serial LCD DisplaySerial LCD Display

4 Chapter 1, Activity #1, Pages 4 - 5

Circuit: Figure 1-4, p. Circuit: Figure 1-4, p. 55

√ √ Follow the Follow the checkmark checkmark instructions on page instructions on page 5.5.

5 Chapter 1, Activity #1, Pages 6 - 7

Testing the Serial LCDTesting the Serial LCD

√ √ Follow the checkmark instructions on pages 6 and 7.Follow the checkmark instructions on pages 6 and 7.

6 Chapter 1, Activity #1-2, Pages 8 - 9

Adjusting the LCD to Receive Messages from the BASIC Adjusting the LCD to Receive Messages from the BASIC StampStamp

√ √ Follow the checkmarks on page 7.Follow the checkmarks on page 7.

BaudmodeBaudmode Argument Argument

““84” is the BS2’s 84” is the BS2’s baudmode argument for a baudmode argument for a 9600 bps, 8-bit, no-parity 9600 bps, 8-bit, no-parity true signal. Read all true signal. Read all about it in the BASIC about it in the BASIC Stamp Editor’s Help Stamp Editor’s Help index.index.

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LCD Control CodesLCD Control Codes

1212 Clears the display Clears the display

1313 Carriage Return (next line) Carriage Return (next line)

2121 turns the LCD off turns the LCD off

2222 Turns the LCD on Turns the LCD on

Program: LcdTestMessage.bs2. Program: LcdTestMessage.bs2.

√ √ Follow the checkmarks on pages 10 – 11.Follow the checkmarks on pages 10 – 11.

8 Chapter 1, Activity #2, Pages 12 - 13

Program: Program: LcdTestNumbers.bs2. LcdTestNumbers.bs2.

√ √ Follow the checkmarks Follow the checkmarks on pages 12 – 13.on pages 12 – 13.

9 Chapter 1, Activity #2, Pages 13 - 14

Control Codes for Control Codes for Cursor PositionCursor Position

Program: Program: CursorPositions.bs2. CursorPositions.bs2.

√ √ Follow the checkmark Follow the checkmark instructions on pages 15 – instructions on pages 15 – 16.16.

10 Chapter 1, Activity #1, Pages 3 - 4

Displaying Time ElapsedDisplaying Time Elapsed

Program: LcdTimer.bs2Program: LcdTimer.bs2

√ √ Follow the checkmarks on pages 17 -18.Follow the checkmarks on pages 17 -18.

Using Descriptive Using Descriptive Constants makes Constants makes programs easier programs easier to understand, to understand, share and edit.share and edit.

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Predefined Custom CharactersPredefined Custom Characters

Program: PredefinedCustomCharacters.bs2Program: PredefinedCustomCharacters.bs2

√ √ Follow the checkmark on page 20.Follow the checkmark on page 20.

12 Chapter 1, Activity #4, Page 21

Defining Custom CharactersDefining Custom Characters

Program: Hourglass.bs2Program: Hourglass.bs2

√ √ Follow the checkmarks on pages 23 – Follow the checkmarks on pages 23 – 24.24.

13 Chapter 1, Activity #5, Pages 25, 28-30

Program: TestScrollingSubroutine.bs2Program: TestScrollingSubroutine.bs2

√ √ Follow the checkmarks on page 28.Follow the checkmarks on page 28.

14 Chapter 1, Activity #5, Pages 31 - 33

Shifting Text through WindowShifting Text through Window

Steps 1 & 2Steps 1 & 2

Setup & Step Setup & Step 00

Steps 3 & 4Steps 3 & 4

Steps 9 & 10Steps 9 & 10

Variables from Variables from TestScrollingSubroutine.bs2TestScrollingSubroutine.bs2