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# System prepended metadata

title: Arduino Library collection

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# 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
* 