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Witty Pi 3 Mini: Realtime Clock and Power Management for Raspberry Pi uugear

Original price was: $ 20.Current price is: $ 12.

SKU: mode_4845351534671 Category: Raspberry Pi > Clock Tags: power, Raspberry Pi, Raspberry Pi > Accessories, Real Time Clock, RTC, updated 10-22

Description
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Witty Pi 3 Mini adds RTC (DS3231SN) and power management to your Raspberry Pi, and can define complex ON/OFF sequence with a simple script.

PRODUCT DESCRIPTION

Witty Pi is small electronic circuit board that can add realtime clock and power management to your Raspberry Pi. Witty Pi 3 Mini is a new member of the third generation of Witty Pi, and it has pHAT shape (Raspberry Pi Zero size).

After installing Witty Pi 3 Mini on your Raspberry Pi, you get some amazing new features:

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.
Monitor external voltage and turn on/off your Raspberry Pi accordingly.

Witty Pi 3 Mini supports all Raspberry Pi models that has the 40-pin GPIO header, including A+, B+, 2B, Zero, Zero W, 3B, 3B+, 3A+ and 4B.

Witty Pi 3 Mini uses the same software with Witty Pi 3. You just need to run these two commands in your Raspberry Pi to install the software:

pi@raspberrypi:~ $ wget http:///repo/WittyPi3/install.sh

pi@raspberrypi:~ $ sudo sh install.sh

Comparing to Witty Pi 3, Witty Pi 3 Mini uses the same RTC chip (DS3231SN) and same micro-controller (ATtiny841). The main difference is the LDO voltage regulator (LM29150) is not populated on Witty Pi 3 Mini. This reduces the cost for those who don’t need this LDO, and also make things easier to integrate a different DC/DC module into Witty Pi 3 Mini.

Unlike Witty Pi 3 uses a 3V button battery for off-power time keeping, Witty Pi 3 Mini uses a super capacitor (0.08F, or 80000uF) for this purpose.

You can find more information in its user manual: http:///doc/WittyPi3Mini_UserManual.pdf

PACKAGE CONTENT:

Each Witty Pi 3 Mini package contains:

Witty Pi 3 Mini board x 1
M2.5 x 10mm plastic screw x 4
4mm spacer x 4
M2.5 plastic nut x 4

Dimension:	65mm x 30mm x 4mm
Weight	8g (net weight)
Micro Controller	ATtiny841(datasheet)
Realtime Clock	DS3231SN (datasheet)
LED Indicator	Red LED: lights up when Raspberry Pi gets powered. White LED: lights up for a few seconds when a shutdown command is received, or blinks when device is standing by.
Connector	20×2 surface-mounted header with 2.54 mm pitch and 2mm plastic height. Micro USB female connector as 5V DC input. Unpopulated 7-pin header for extension or integration. Unpopulated 3-pin header/connector for VIN, GND and 5V.
Time Keeping	Using 0.08F super capacitor as time keeping power source. Allows about 17 hours off-power time keeping.
Power In	DC 5V (via micro USB). Possible to connect external DC/DC converter (not included) and also have VIN monitored.
Output Current	Up to 2.5A for Raspberry Pi and its peripherals. If using external DC/DC converter, the output current is also limited by the capability of DC/DC converter.
Standby Current	~ 1mA
Operating Temperature	-30℃~80℃ (-22F~176F)
Storage Temperature	-40℃~85℃ (-40F~185F)
Humidity	0~80%RH, no condensing

Fast Shipping with Professional Packaging

Due to our longstanding partnership with UPS FedEx DHL as well as other major international carriers, we are able to provide a range of shipping options. Our warehouse staff is highly trained to package your goods exactly according to the specifications we provide. Your items will go through a thorough examination and will be safely packaged prior to being sent out. We deliver to thousands of customers every day from all over the world. The fact that we are determined to become the largest online retailer in the world is obvious. Warehouses and distribution centres can be located in Europe as well as in the USA.

It is important to note that orders with multiple items are subject to a processing period that is based to the particular item.

Prior to shipping, our team will perform an extensive inspection of the products you have ordered. Most orders today are shipped in 48 hours. The expected delivery time will be between 3 and 7 days.

Returns

Due to the multiple parties involved such as the factory and the warehouse, we cannot completely manage our stock. The actual levels of stock can change at any moment. It's possible that you may not receive your order once the order has been made.

Our policy is for 30 days. If 30 days have gone without a trace since the purchase however, we're unable to give you a return or exchange.

You are able to return a product in the event that it is not used and still in the same state as when you first received it. The item must be returned in its original packaging.

Witty Pi 3 Mini: Realtime Clock and Power Management for Raspberry Pi uugear

PRODUCT DESCRIPTION

PACKAGE CONTENT:

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