LCD Keypad Arduino Shield

The DFRobot LCD Keypad Shield for Arduino features a 16x2 character LCD display with analog pushbutton inputs.

This Arduino Shield includes a 16 column by 2 row text character LCD display and 5 momentary push buttons connected to a single analog input. A contrast adjustment is provided and the backlight can be turned on or off to conserve energy. It also has a conveniently placed reset button, a power indicator LED and a set of male headers for to access to Arduino analog inputs.

This shield uses an HD44780 compatible display controller that works with the standard Arduino LiquidCrystal display library.

DFRobot LCD Keypad Shield Pinout

Pin	Ref	Description
D4	DB4	LCD controller data bit 4
D5	DB5	LCD controller data bit 5
D6	DB6	LCD controller data bit 6
D7	DB7	LCD controller data bit 7
D8	RS	LCD controller register select
D9	E	LCD controller enable
D10	LED	LCD backlight enable
A0	BTN	5 button analog input

Documentation

• LCD Keypad Shield Schematic
• HD44780 LCD Controller Datasheet

References

• Arduino LiquidCrystal LCD Library

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