Device driver of NXP PCF8523 RTC for arduino. Contribute to ArduinoRTC/RTC_PCF8523_U development by creating an account on GitHub.

RTC library for Arduino. Contribute to teddokano/RTC_NXP_Arduino development by creating an account on GitHub.

Tronixstuff has a borderline insane tutorial series going, and as of now, 27 chapters have been published. It's essentially the Arduino Bible, but the two most recent additions in particular have ...