LCD0821

LCD0821 Datasheet

LCD0821 Technical Manual

Part	Datasheet
LCD0821	LCD0821 (pdf)

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LCD0821 Technical Manual Contents Contents 1 Getting Started Display Options Available 1 Accessories 2 Features 3 Connecting to a PC 4 Installing the Software 5 uProject 5 2 Hardware Information Power/Data Connector 6 RS-232 Header 7 Manual Override 7 General Purpose Output 8 Protocol Select Jumpers 9 3 Troubleshooting The display does not turn on when power is applied. 10 The display module is not communicating. 10 The display module is communicating, however text cannot be displayed. 11 4 Communications Introduction 11 I2C Communication Summary 11 I2C Transaction Example 12 Serial Communication 13 Changing the I2C Slave Address 13 Changing the Baud Rate 13 Setting a Non-Standard Baud Rate 14 5 Text Introduction 15 Character Set 16 Control Characters 17 Auto Scroll On 18 Auto Scroll Off 18 Clear Screen 18 Changing the Startup Screen 18 Set Auto Line Wrap On 19 Set Auto Line Wrap Off 19 Set Cursor Position 19 Go Home 20 Move Cursor Back 20 Ordering Information 46 Contacting Matrix Orbital 47 Matrix Orbital LCD0821 1 Getting Started Figure 1 LCD0821 The LCD0821 is an intelligent LCD display designed to decrease development time by providing an instant solution to any project. With the ability to communicate via serial RS-232/TTL and I2C protocols, the versatile LCD0821 can be used with virtually any controller. The ease of use is further enhanced by an intuitive command structure to allow display settings such as backlight brightness, contrast and baud rate to be software controlled. Additionally, up to forty custom characters such as character sets for bar graphs, medium and large numbers may be stored in the non-volatile memory to be easily recalled and displayed at any time. Display Options Available The LCD0821 comes in a wide variety of colors including the standard yellow/green or inverse yellow, the popular blue/white and the crisp white/grey as well as inverse red which is excellent for viewing at night. Extended voltage, and temperature options are also available, to allow you to select the display which will best your project needs. Matrix Orbital LCD0821 Accessories Figure 2 LCD0821 Options NOTE Matrix Orbital provides all the interface accessories needed to get your display up and running. You will these accessories and others on our e-commerce website at To contact a sales associate see Section on page 47 for contact information. Figure 3 5V Power Cable Adapter Figure 4 12V Power Cable Adapter V/VPT Models Matrix Orbital LCD0821 Figure 5 Breadboard Cable Figure 6 Serial Cable 4FT Figure 7 Communication and 5V Power Cable • 8 column by 2 line alphanumeric liquid crystal display • Selectable communication protocol, serial at RS-232 or TTL levels or I2C • One, 5V -20mA, general purpose output for a variety of applications • Lightning fast communication speeds, up to kbps for RS-232 and 100 kbps for I2C • Extended temperature available for extreme environments of -20C to 70C • Extended voltage power supply available • Built in font with provision for up to 8 user characters • Up to 127 modules addressable on the same 2 wire I2C interface • Ability to add a customized splash / startup screen • Software controlled contrast and brightness with time-out setting up to 90 minutes • Horizontal or vertical bar graphs Matrix Orbital LCD0821 Connecting to a PC The LCD0821 connects seamlessly to a PC and it is an excellent means of testing the functionality. To connect your display to a PC, you will require a standard RS-232 9-pin serial cable such as the one pictured in 6 on the previous page, as well as a 5V power adapter such as the one pictured in 3 on page In order to connect your display to a personal computer follow these easy instructions: Plug the serial cable into the com port you wish to use. Connect the 5V power adapter to a power lead from your PC power supply you will have to open your computer case . Connect the serial cable to the DB-9 connector on the back of the display. Connect the 5V power adapter to the 4-pin connector on the back of the display. WARNING DO NOT use the standard drive power connector, as this will not provide you with the correct voltage and will damage the display module. Figure 8 PC vs Matrix Orbital Display Module Wiring Matrix Orbital LCD0821 Installing the Software uProject uProject was designed by Matrix Orbital to provide a simple and easy to use interface that will allow you to test all of the features of our alpha numeric displays. To install uProject from the Matrix Orbital CD, follow the following steps: Insert the Matrix Orbital CD-ROM into the CD drive Locate the uProject.exe, which should be in the directory. Copy uProject.exe to a directory that you wish to run it from. Double click on "uProject.exe" Be sure to check the information selected in the COM Setup the time uProject is run. Once this information is entered correctly the program can be used to control all functions of the graphic display. Comport Baudrate The serial port the display is plugged in to. Ordering Information LCD 08 2 1 -R -V -E 1 2 34 5 6 7 Table 59 Part Numbering Scheme Screen Type Width Height 5 Color Text/Background Input Voltage Temperature Options LCD Liquid Crystal Display 08 Eight Character Columns 2 Two Character Rows 1 Single GPO NP Standard Grey/Yellow-Green GW Grey/White WB White/Blue R Red/Black IY Yellow/Black NP Standard 4.75-5.25V -V Extended Volatge 9.00-15.0V NP Standard to -E Extended Temperature to Table 60 Part Options E Extended Temperature -20C to 70C V Wide Voltage +9 to +15Vdc GW Grey Text / White Background WB White Text / Blue Background R Inverse Red IY Inverse Yellow MSB Most Byte LSB Least Byte Matrix Orbital LCD0821 Contacting Matrix Orbital Telephone Sales 1 403 229-2737 Support 1 403 204-3750 On The Web Sales Support Forums: Author Initial Manual Matrix Orbital Updated Backlight Life Clark Matrix Orbital LCD0821

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LCD0821 Technical Manual

Contents

Contents
1 Getting Started

Display Options Available 1

Accessories 2

Features 3

Connecting to a PC 4

Installing the Software 5
uProject 5
2 Hardware Information

Power/Data Connector 6

RS-232 Header 7

Manual Override 7

General Purpose Output 8

Protocol Select Jumpers 9
3 Troubleshooting

The display does not turn on when power is applied. 10

The display module is not communicating. 10

The display module is communicating, however text cannot be displayed. 11
4 Communications

Introduction 11

I2C Communication Summary 11

I2C Transaction Example 12

Serial Communication 13

Changing the I2C Slave Address 13

Changing the Baud Rate 13

Setting a Non-Standard Baud Rate 14
5 Text

Introduction 15

Character Set 16

Control Characters 17

Auto Scroll On 18

Auto Scroll Off 18

Clear Screen 18

Changing the Startup Screen 18

Set Auto Line Wrap On 19

Set Auto Line Wrap Off 19

Set Cursor Position 19

Go Home 20

Move Cursor Back 20
Ordering Information 46

Contacting Matrix Orbital 47

Matrix Orbital

LCD0821
1 Getting Started

Figure 1 LCD0821

The LCD0821 is an intelligent LCD display designed to decrease development time by providing an instant solution to any project. With the ability to communicate via serial RS-232/TTL and I2C protocols, the versatile LCD0821 can be used with virtually any controller. The ease of use is further enhanced by an intuitive command structure to allow display settings such as backlight brightness, contrast and baud rate to be software controlled. Additionally, up to forty custom characters such as character sets for bar graphs, medium and large numbers may be stored in the non-volatile memory to be easily recalled and displayed at any time.

Display Options Available

The LCD0821 comes in a wide variety of colors including the standard yellow/green or inverse yellow, the popular blue/white and the crisp white/grey as well as inverse red which is excellent for viewing at night. Extended voltage, and temperature options are also available, to allow you to select the display which will best your project needs.

Matrix Orbital

LCD0821

Accessories

Figure 2 LCD0821 Options

NOTE Matrix Orbital provides all the interface accessories needed to get your display up and running. You will these accessories and others on our e-commerce website at To contact a sales associate see Section on page 47 for contact information.

Figure 3 5V Power Cable Adapter

Figure 4 12V Power Cable Adapter V/VPT Models

Matrix Orbital

LCD0821

Figure 5 Breadboard Cable

Figure 6 Serial Cable 4FT

Figure 7 Communication and 5V Power Cable
• 8 column by 2 line alphanumeric liquid crystal display
• Selectable communication protocol, serial at RS-232 or TTL levels or I2C
• One, 5V -20mA, general purpose output for a variety of applications
• Lightning fast communication speeds, up to kbps for RS-232 and 100 kbps for I2C
• Extended temperature available for extreme environments of -20C to 70C
• Extended voltage power supply available
• Built in font with provision for up to 8 user characters
• Up to 127 modules addressable on the same 2 wire I2C interface
• Ability to add a customized splash / startup screen
• Software controlled contrast and brightness with time-out setting up to 90 minutes
• Horizontal or vertical bar graphs

Matrix Orbital

LCD0821

Connecting to a PC

The LCD0821 connects seamlessly to a PC and it is an excellent means of testing the functionality. To connect your display to a PC, you will require a standard RS-232 9-pin serial cable such as the one pictured in 6 on the previous page, as well as a 5V power adapter such as the one pictured in 3 on page

In order to connect your display to a personal computer follow these easy instructions:

Plug the serial cable into the com port you wish to use. Connect the 5V power adapter to a power lead from your PC power supply you will have to
open your computer case . Connect the serial cable to the DB-9 connector on the back of the display. Connect the 5V power adapter to the 4-pin connector on the back of the display.

WARNING DO NOT use the standard drive power connector, as this will not provide you with the correct voltage and will damage the display module.

Figure 8 PC vs Matrix Orbital Display Module Wiring

Matrix Orbital

LCD0821

Installing the Software
uProject
uProject was designed by Matrix Orbital to provide a simple and easy to use interface that will allow you to test all of the features of our alpha numeric displays.

To install uProject from the Matrix Orbital CD, follow the following steps:

Insert the Matrix Orbital CD-ROM into the CD drive Locate the uProject.exe, which should be in the directory. Copy uProject.exe to a directory that you wish to run it from. Double click on "uProject.exe"

Be sure to check the information selected in the COM Setup the time uProject is run. Once this information is entered correctly the program can be used to control all functions of the graphic display.

Comport Baudrate

The serial port the display is plugged in to.
Ordering Information

LCD 08 2 1 -R -V -E 1 2 34 5 6 7

Table 59 Part Numbering Scheme

Screen Type

Width

Height
5 Color Text/Background

Input Voltage

Temperature

Options LCD Liquid Crystal Display 08 Eight Character Columns
2 Two Character Rows 1 Single GPO

NP Standard Grey/Yellow-Green GW Grey/White WB White/Blue R Red/Black IY Yellow/Black

NP Standard 4.75-5.25V -V Extended Volatge 9.00-15.0V

NP Standard to -E Extended Temperature to

Table 60 Part Options

E Extended Temperature -20C to 70C V Wide Voltage +9 to +15Vdc GW Grey Text / White Background WB White Text / Blue Background R Inverse Red IY Inverse Yellow MSB Most Byte LSB Least Byte

Matrix Orbital

LCD0821

Contacting Matrix Orbital

Telephone Sales 1 403 229-2737 Support 1 403 204-3750

On The Web Sales Support Forums:

Author

Initial Manual

Matrix Orbital

Updated Backlight Life

Clark

Matrix Orbital

LCD0821

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived LCD0821 Datasheet file may be downloaded here without warranties.

Datasheet ID: LCD0821 647122