Witty Pi 3 Rev2

  • Witty Pi 3 Rev2


Witty Pi 3 Rev2


Witty Pi 3 Rev2 from UUGear adds RTC (DS3231SN) and power management to your Raspberry Pi. You can define complex ON/OFF sequence with a simple script.

Witty Pi 3 Rev2 supports all Raspberry Pi models with 40-pin header, including A+, B+, 2B, Zero, Zero W, 3B, 3B+, 3A+ and 4B.

You just need to run these two commands in your Raspberry Pi to install Witty Pi 3’s software:

pi@raspberrypi:~ $ wget
pi@raspberrypi:~ $ sudo sh



  • Power your Raspberry Pi with higher voltage (up to DC 28V).
  • Gracefully turn on/off Raspberry Pi with single tap on the button.
  • Fully cut the power of Raspberry Pi and all its USB peripherals after the shutdown.
  • Automatically synchronize time between realtime clock and Raspberry Pi.
  • Monitor the temperature around your Pi (thanks to the sensor in RTC chip).
  • Schedule the startup/shutdown of your Raspberry Pi.
  • Write a script to define complex ON/OFF sequence.
  • Shutdown Raspberry Pi when input voltage is lower than the threshold value.
  • Turn on Raspberry Pi when input voltage raise over the threshold value.
  • Long hold the button to force power cut (when the OS loses response).


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Package content:

Each Witty Pi 3 Rev2 package contains:

  • Witty Pi 3 Rev2 board x 1
  • CR2032 battery x 1
  • M2.5 x 11mm Copper Standoff x 4
  • M2.5 screws x 8



Dimension: 65mm x 56mm x 19mm
Weight: 23g (net weight without battery)
Battery: CR2032 (for time and alarms keeping)
Power In: DC 5V (via USB type C connector) or DC 6V~28V (via XH2.54 connector)
Output Current: Up to 3A for Raspberry Pi and its peripherals
Static Current: ~1mA
Operating Temperature: -30℃~80℃ (-22°F~176°F)
Storage Temperature: -40℃~85℃ (-40°F~185°F)
Humidity: 0~80%RH, no condensing


User manual:

More information about this product can be found in its user manual


The firmware update guide is available here