He set up his Raspberry Pi as an alarm clock that is set using Google Calendar. The setup which he shows off in his video is quite simple. The Raspberry Pi is connected to a set of powered ...

The RTC-32k-CAL.01 is a low power RTC relying on a crystal oscillator and designed to achieve the requirements of low power modes and deep sleep modes of IoT devices. Together with the qOSC-XTAL-LP- ...