  **************************************
           COFFEE GRINDER TIMER
  **************************************

  Modified & Rewritten by Flavio Spedalieri (FRS), March 2020.

  V2.82 (Release 1) 
  ----------------------------------------
  Features:
    Two preset timers
    Manual Grind / Purge
    Configurable Display options; LCD or OLED options
    Two button or Single button for Preset 1 / 2 selection
    Encoder adjustment for on-the-fly time offset & programming
    LED Visual Indicator
 
Additional required Libraries:

Encoder.h   -  http://www.pjrc.com/teensy/td_libs_Encoder.html
EEPROM.h    -  Arduino EEPROM library
LEDFader.h  -  https://github.com/jgillick/arduino-LEDFader

LiquidCrystal_PCF8574.h - https://github.com/mathertel/LiquidCrystal_PCF8574
U8g2lib.h               - U8g2 monochrome graphics library
I2cCharDisplay.h        - US2066 driver library https://www.dcity.org/portfolio/i2c-display-library/