I2C /SPI Character LCD Backpack angular 5m（related to the card or

5m（related to the card or the environment）  Writing Rang(Max)：0

2×18650 Battery Holder (2×3

Be aware default setting of the product is slave mode

Applicable to a variety of platforms including Arduino / AVR / ARM

I2C /SPI Character LCD Backpack angular 5m（related to the card orThe LCD backpacks serve to solve the main problem with using LCD which is the large number of pins required to control the LCD. This is not only annoying but also occupy many useful pins of your Arduino or microcontroller that might be saved for another application. This LCD backpacks by Adafruit reduce the number of pins needed to connect to an LCD. By using simple i2c and SPI input output expanders we have reduced the number of pins (only 2 pins are