# Arduino Library collection * DS-3231 RTC 用這 Library adafruit / RTClib 1.14.1 https://github.com/adafruit/RTClib * 16x2 I2C LCD 改這組 Library https://github.com/fmalpartida/New-LiquidCrystal LiquidCrystal_I2C 1.5.1 fmalpartida/New-LiquidCrystal *