UUGear Witty Pi 3 User Manual

1
What is Witty Pi?
Witty Pi is small electronic circuit board that can add realtime clock and power management to your
Raspberry Pi. Witty Pi 3 is the third generation of Witty Pi. After installing Witty Pi 3 on your
Raspberry Pi, you get some amazing new features:
 You can power your Raspberry Pi with higher voltage.
 You can gracefully turn on/off Raspberry Pi with single tap on the switch.
 After shutdown, Raspberry Pi and all its USB peripherals’ power are fully cut.
 Raspberry Pi knows the correct time, even without accessing the Internet.
 Raspberry Pi knows the temperature thanks to the sensor in RTC chip.
 You can schedule the startup/shutdown of your Raspberry Pi.
 You can even write a script to define complex ON/OFF sequence.
 Shutdown Raspberry Pi when input voltage is lower than pre-set value.
 Turn on Raspberry Pi when input voltage raise to pre-set value.
 When the OS loses response, you can long hold the switch to force power cut.
Witty Pi 3 supports all Raspberry Pi models that has the 40-pin GPIO header, including A+, B+, 2B,
Zero, Zero W, 3B, 3B+, 3A+ and 4B.
Comparing to Witty Pi 2, Witty Pi 3 uses the same RTC chip (DS3231SN) and introduces a new
micro-controller (ATtiny841), which allows it to behave smarter and handle more complex

UUGear Witty Pi 3 Specifications

General

Brand	UUGear
Model	Witty Pi 3
Category	Control Unit
Language	English