Horizontal Scrolling in 16X2 Alphanumeric LCD with AVR ATmega16 Microcontroller

Horizontal Scrolling in 16X2 Alphanumeric LCD with ATmega16

22130

Now a day’s message display boards are being used at different places like railway stations, public places, universities, colleges, hospitals, general stores etc for giving information. Scrolling message means sliding text vertically or horizontally. Scrolling doesn’t change the layout of the text but moves the users view across what is apparently a large message that is not wholly seen. They can be used to attract the attention of viewers also. Suppose if a message written horizontally longer than will fit on the screen, it can’t be display completely on the screen. By using scrolling message display units the viewers can see the message. In our project, we will use the horizontal scrolling.

In this project, we will learn How to scroll characters horizontally in a 16X2 alphanumeric LCD with AVR ATmega32 microcontroller. First we will display “ABLab Solutions Bhubaneswar-751005” in 1st row and “www.ablab.in info@ablab.in” in 2nd row of a 16X2 alphanumeric LCD. Then, we will scroll the displayed characters from right to left. The characters can also be scrolled from left to right. To scroll it from left to right, send the command 0x1c in place of 0x18.

Softwares Required

Hardwares Required

Name	Quantity
AVR Trainer Board-100 with ATmega16	1pc
AVR USB Programmer	1pc
RG1602A 16X2 Alphanumeric LCD Green	1pc
12V, 1A DC SMPS Adaptor	1pc
1 to 1 Connector-Female to Female	3pc
10 to 10 FRC Female to Female Connector	2pc

Circuit Diagram

Video

Connection Guide

The step-by-step connection guide for Horizontal Scrolling in 16X2 Alphanumeric LCD with ATmega16 is as follows

Steps - 1 ( 0f 8 )

Insert the DC Pin of 12V, 1A DC Adapter to the DC Socket of AVR Trainer Board-100.
Steps - 2 ( 0f 8 )

Connect PortB header with LCD data header in AVR Trainer Board-100 with a 10 to 10 FRC Female Connector.
Steps - 3 ( 0f 8 )

Connect RS, RW & EN pins of LCD control header with PD0, PD1 & PD2 pins of PortD header respectively in AVR Trainer Board-100 with 1 to 1 Connectors.
Steps - 4 ( 0f 8 )

Connect the 16X2 Alphanumeric LCD to the LCD header of AVR Trainer Board-100.
Steps - 5 ( 0f 8 )

Connect the ISP header of AVR Trainer Board-100 with AVR USB Programmer header of AVR USB Programmer with a 10 to 10 FRC Female Connector.
Steps - 6 ( 0f 8 )

Connect the AVR USB Programmer to the PC/Laptop's USB Port directly or with the help of USB AM-FM Cable.
Steps - 7 ( 0f 8 )

Switch on the power with the help of Power Switch of AVR Trainer Board-100.
Steps - 8 ( 0f 8 )

Download the Horizontal Scrolling in 16X2 Alphanumeric LCD with ATmega16 Hex file to AVR Trainer Board-100 with the help of SinaProg Hex downloader and AVR USB Programmer.

Insert the DC Pin of 12V, 1A DC Adapter to the DC Socket of AVR Trainer Board-100.

Steps - 1 ( 0f 8 )
Connect PortB header with LCD data header in AVR Trainer Board-100 with a 10 to 10 FRC Female Connector.

Steps - 2 ( 0f 8 )
Connect RS, RW & EN pins of LCD control header with PD0, PD1 & PD2 pins of PortD header respectively in AVR Trainer Board-100 with 1 to 1 Connectors.

Steps - 3 ( 0f 8 )
Connect the 16X2 Alphanumeric LCD to the LCD header of AVR Trainer Board-100.

Steps - 4 ( 0f 8 )
Connect the ISP header of AVR Trainer Board-100 with AVR USB Programmer header of AVR USB Programmer with a 10 to 10 FRC Female Connector.

Steps - 5 ( 0f 8 )
Connect the AVR USB Programmer to the PC/Laptop's USB Port directly or with the help of USB AM-FM Cable.

Steps - 6 ( 0f 8 )
Switch on the power with the help of Power Switch of AVR Trainer Board-100.

Steps - 7 ( 0f 8 )
Download the Horizontal Scrolling in 16X2 Alphanumeric LCD with ATmega16 Hex file to AVR Trainer Board-100 with the help of SinaProg Hex downloader and AVR USB Programmer.

Steps - 8 ( 0f 8 )