Difference between revisions of "LCD Interface with PIC16F877A Starter Board"
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[[Category:Starter PIC16F877]] | [[Category:Starter PIC16F877]] | ||
| + | In this tutorial we will see how to interface alpha-numeric LCD with PIC16F877A starter board.<br> | ||
| + | |||
| + | |||
| + | =LCD pin Connection= | ||
| + | Starter board comes with on board header to connect 1x16,2x16 or 4x20 LCD in <b>4-bit Mode</b>.<br> | ||
| + | Below table shows the LCD pins connection. | ||
| + | {| class="table table-striped table-hover table-condensed table-bordered" | ||
| + | |-class="info" | ||
| + | !RS || RW || EN || D0 || D1 || D2 || D3 || D4 || D5 || D6 || D7 | ||
| + | |- | ||
| + | |PB_0 || PB_1 || PB_2 || P_NC || P_NC || P_NC || P_NC || PB_4 || PB_5 || PB_6 || PB_7 | ||
| + | |} | ||
| + | *P_NC: Pin Not Connected | ||
| + | <br> | ||
| + | |||
=Code= | =Code= | ||
Revision as of 19:10, 2 May 2016
In this tutorial we will see how to interface alpha-numeric LCD with PIC16F877A starter board.
LCD pin Connection
Starter board comes with on board header to connect 1x16,2x16 or 4x20 LCD in 4-bit Mode.
Below table shows the LCD pins connection.
| RS | RW | EN | D0 | D1 | D2 | D3 | D4 | D5 | D6 | D7 |
|---|---|---|---|---|---|---|---|---|---|---|
| PB_0 | PB_1 | PB_2 | P_NC | P_NC | P_NC | P_NC | PB_4 | PB_5 | PB_6 | PB_7 |
- P_NC: Pin Not Connected
Code
LCD 1x16
| #include "lcd.h" | |
| int main() | |
| { | |
| /*Connect RS->PB0, RW->PB1, EN->PB2 and data bus to PORTB.4 to PORTB.7*/ | |
| LCD_SetUp(PB_0,PB_1,PB_2,P_NC,P_NC,P_NC,P_NC,PB_4,PB_5,PB_6,PB_7); | |
| LCD_Init(1,16); | |
| LCD_DisplayString("Explore Lcd 1x16"); | |
| while(1); | |
| return (0); | |
| } |
LCD 2x16
| #include "lcd.h" | |
| int main() | |
| { | |
| /*Connect RS->PB0, RW->PB1, EN->PB2 and data bus to PORTB.4 to PORTB.7*/ | |
| LCD_SetUp(PB_0,PB_1,PB_2,P_NC,P_NC,P_NC,P_NC,PB_4,PB_5,PB_6,PB_7); | |
| LCD_Init(2,16); | |
| LCD_DisplayString("Explore Embedded"); | |
| LCD_DisplayString("Lcd 4-bit Mode"); | |
| while(1); | |
| return (0); | |
| } |
LCD 4x20
| #include "lcd.h" | |
| int main() | |
| { | |
| /*Connect RS->PB0, RW->PB1, EN->PB2 and data bus to PORTB.4 to PORTB.7*/ | |
| LCD_SetUp(PB_0,PB_1,PB_2,P_NC,P_NC,P_NC,P_NC,PB_4,PB_5,PB_6,PB_7); | |
| LCD_Init(4,20); | |
| LCD_DisplayString("Explore Embedded\n"); | |
| LCD_DisplayString("LCD 4-bit Mode\n"); | |
| LCD_DisplayString("20 x 4 \n"); | |
| LCD_DisplayString(":) :O"); | |
| while(1); | |
| return (0); | |
| } |
Demo
The images below shows 16x2, 16x1 and 20x4 LCD's interfaced with starter AVR.
Downloads
Download the complete project folder from the below link:
https://github.com/ExploreEmbedded/Pic16f877a_ExploreStarterPIC/archive/master.zip
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