LCD Key Shield is an LCD expansion board with a 1602 LCD display , a five-way key, a rotary encoder. It is fully compatible with the Arduino UNO board. You can achieve the desired display function only by connecting it with the Arduino UNO board, and then programming the corresponding code . In addition, we extended a five-way key and a rotary encoder, and (D13-D11) Digital IO, (A0-A5) Analog IO containing SPI, I2C interface, so you can achieve key function on LCD1602 screen and encoder function, and you can also assemble the electronic bricks and many other modules with our LCD Key Shield, therefore, you can display the results you need on the LCD.