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Arduino LCD Keypad Shield #312

৳ 280.00 ৳ 250.00

16×2 LCD and Keypad shield for Arduino Uno, Diecimila, Duemilanove, Freeduino boards, and other Uno sized compatible boards such as the Sparkfun Redboard.

4 in stock

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Description

This is a 16×2 LCD and Keypad shield for Arduino Uno, Diecimila, Duemilanove, Freeduino boards, and other Uno sized compatible boards such as the Sparkfun Redboard.

  • Blue Backlight with white words
  • uses 4 Bit Arduino LCD Library
  • Left, Right, Up, Down and Select buttons
  • Screen contrast adjustment
  • Arduino Reset button

The board uses different pins to the Arduino example sketches, so to make the display work, use the following sequence of pins when starting the library:

LiquidCrystal lcd(8,9,4,5,6,7);

The buttons are connected to only one analog input pin through resistors to give a different voltage for each button, thus saving on input/output pins. Reading the buttons is easy and example code is shown below

Pin Connections

Pin Function
Analog 0 Buttons (select, up, right, down and left)
Digital 4 DB4
Digital 5 DB5
Digital 6 DB6
Digital 7 DB7
Digital 8 RS (Data or Signal Display Selection)
Digital 9 Enable

 

For Code Example and Doc :

https://www.dfrobot.com/wiki/index.php/Arduino_LCD_KeyPad_Shield_(SKU:_DFR0009)

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