Interfacing LCD with Starter AVR
Revision as of 13:19, 2 April 2016 by Vaibhav Katkar (Talk | contribs)

Basic

Hookup

Code

LCD 16x1

  1. #include "lcd.h"
  2. int main() 
  3. {
  4.     /*Connect RS->PB0, RW->PB1, EN->PB2 and data bus to PORTC.4 to PORTC.7*/
  5.     LCD_SetUp(PB_0,PB_1,PB_2,P_NC,P_NC,P_NC,P_NC,PC_4,PC_5,PC_6,PC_7);
  6.     LCD_Init(1,16); 
  7.     LCD_DisplayString("Explore Embedded");
  8.     while(1);
  9.     return (0);
  10. }

LCD 16x2

  1. #include "lcd.h"
  2. int main() 
  3. {
  4.     /*Connect RS->PB0, RW->PB1, EN->PB2 and data bus to PORTC.4 to PORTC.7*/
  5.     LCD_SetUp(PB_0,PB_1,PB_2,P_NC,P_NC,P_NC,P_NC,PC_4,PC_5,PC_6,PC_7);
  6.     LCD_Init(2,16);
  7.  
  8.     LCD_DisplayString("Explore Embedded");
  9.     LCD_DisplayString("Lcd 4-bit Mode");
  10.     while(1);
  11.  
  12.     return (0);
  13. }

LCD 20x4

  1. #include "lcd.h"
  2. int main() 
  3. {
  4.     /*Connect RS->PB0, RW->PB1, EN->PB2 and data bus to PORTC.4 to PORTC.7*/
  5.     LCD_SetUp(PB_0,PB_1,PB_2,P_NC,P_NC,P_NC,P_NC,PC_4,PC_5,PC_6,PC_7);
  6.     LCD_Init(4,20);
  7.  
  8.     LCD_DisplayString("Explore Embedded\n");
  9.     LCD_DisplayString("LCD 4-bit Mode\n");
  10.     LCD_DisplayString("20 x 4 \n");
  11.     LCD_DisplayString(":)  :O");
  12.  
  13.     while(1);
  14.  
  15.     return (0);
  16. }

Demo

The images below shows 16x2, 16x1 and 20x4 LCD's interfaced with starter AVR.
0 lcd2 starter.JPG

  • 16x1 LCD

  • 20x4 LCD

Downloads

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