Witty Pi 2 is the new generation of Witty Pi, which adds RTC and power management to your Raspberry Pi, and can define complex ON/OFF sequence with simple script.
SImply install software on your Raspberry Pi to use this device.
Comparing to the old Witty Pi, Witty Pi 2 uses much better RTC chip (DS3231SN), which only has <160 seconds error per year. Also this RTC chip has temperature sensor built-in, so you can read the temperature around your Raspberry Pi via the software. The new “dummy load” feature is very useful when you use power bank as power supply, it will draw peak current with certain interval, and keep your power bank alive.
Witty Pi 2 supports all Raspberry Pi models with 40-pin header, including A+, B+, 2B, Zero and 3B.