In this tutorial we will see how to interface alpha-numeric LCD with PIC18F4520 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


LCD 1x16

LCD 2x16

LCD 4x20


The images below shows 16x2, 16x1 and 20x4 LCD's interfaced with starter AVR.
Pic16f877a 1x16 LCD.JPG


Download the complete project folder from the below link:

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