WITTY PI 2: Realtime Clock and Power Management for Raspberry Pi
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WITTY PI 2: Realtime Clock and Power Management for Raspberry Pi

  • Vendor:SB Components
  • Category: HATS/Shields, Raspberry Pi
Availability: In Stock
£24.99 GBP
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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 a simple script. Witty Pi 2 supports all Raspberry Pi models with 40-pin header, including A+, B+, 2B, Zero, and 3B.

After installing the software on your Raspberry Pi, you can enjoy these amazing new features:

  • A single tap on the button to gracefully turn on/off Raspberry Pi.
  • After shutdown, the power for Raspberry Pi and all its USB peripherals are fully cut.
  • Raspberry Pi knows the correct time, even without accessing the Internet.
  • You can schedule the startup/shutdown of your Raspberry Pi.
  • You can even write a script to define complex ON/OFF sequence.

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 a 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 a power bank as power supply, it will draw peak current with the certain interval, and keep your power bank alive.

Each Witty Pi 2 package contains:

  • Witty Pi 2 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: 24g (net weight without battery)
  • LED Indicator: A white LED
  • Connector: 40-pin stackable header
  • Battery: CR2032 or CR2025 (for timekeeping)
  • Power In: DC 5V (via micro USB or XH2.54 connector)
  • Output Current: Maximum 3A for Raspberry Pi and its peripherals
  • Static Current:  ~ 1mA in average with dummy load off (default) and ~15mA in average with the dummy load on
  • Operating Temperature: -30℃~80℃ (-22°F~176°F)
  • Storage Temperature: -40℃~85℃ (-40°F~185°F)
  • Humidity: 0~80%RH, no condensing

Follow the link below for the reference document.

http://www.uugear.com/doc/WittyPi2_UserManual.pdf

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