This inherits from Adafruit_GFX libraries. It should behave exactly like Adafruit's own Adafruit_SSD1306 I2C displays (but without SSD1306 scroll etc).
Adafruit_ST7920_kbv inherits all the methods from
the Adafruit_GFX class: https://learn.adafruit.com/adafruit-gfx-graphics-library/overview
and Print class: https://www.arduino.cc/en/Serial/Print
Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries. MIT license, all text above must be included in any redistribution
To download. click the DOWNLOADS button in the top right corner, rename the uncompressed folder Adafruit_ST7920_kbv. Check that the Adafruit_ST7920_kbv folder contains Adafruit_ST7920_kbv.cpp and Adafruit_ST7920_kbv.
Place the Adafruit_ST7920_kbv library folder your arduinosketchfolder/libraries/ folder. You may need to create the libraries subfolder if its your first library. Restart the IDE
Also requires the Adafruit_GFX library for Arduino.