Arduino library for ST7032 LCD controller with i2c interface.
Tested with Arduino Uno, Arduino Zero, Attiny85@1mhz, Attiny85@8mhz and ESP8266 with this LCD Module: http://www.buydisplay.com/default/16x2-lcd-3-3v-character-cog-display-module-black-on-white (with 3.3V and 5V)