Raspberry Pi Power

The official Raspberry Pi USB-C power supply is designed to power the latest Raspberry Pi 4 Model B computers, which were released in June 2019.
Featuring a captive USB-C cable, the power supply is available in four different models to suit different international power sockets, and in two colours, white and black.
If you need to use the power supply for an earlier model RPi or the zero you'll need a type C to micro B adapter than you will find at https://www.pishop.co.za/store/rpi-power/usb-type-c-female-to-micro-usb-male-adapter
Specifications
Output
- Output voltage: +5.1V DC
- Minimum load current: 0A
- Nominal load current: 3.0A
- Maximum power: 15.3W
- Load regulation: ±5%
- Line regulation: ±2%
- Ripple & noise: 120mVp-p
- Rise time: 100ms maximum to regulation limits for DC outputs
- Turn-on delay: 3000ms maximum at nominal input AC voltage and full load
- Protection: Short circuit protection, Overcurrent protection, Over temperature protection
- Efficiency: 81% minimum (output current from 100%,75%, 50%, 25%)72% minimum at 10% load
- Output cable: 1.5m 18AWG
- Output connector: USB Type-C
Input
- Voltage range: 100-240Vac (rated)
- 96-264Vac (operating)
- Frequency: 50/60Hz ±3Hz
- Current: 0.5A maximum
- Power consumption (no load): 0.075W maximum
- Inrush current: No damage shall occur and the input fuse shall not blow
UL94V-1
AC pin material
Brass (NI plated)
WARNINGS
• This product should be operated in a well-ventilated environment.
• The connection of incompatible devices to this power supply may affect compliance, result in damage to the unit and invalidate the warranty.
SAFETY INSTRUCTIONS
To avoid malfunction or damage to this product please observe the following:
• Do not expose to water or moisture, or place on a conductive surface whilst in operation.
• Do not expose to heat from any source; this is designed for reliable operation at normal ambient room temperatures.
• Do not attempt to open or remove the power supply case.
You'll need a USB Type C adapter to use this supply for Pi 4
The Official Raspberry Pi Power Supply - Shipped with easily interchangeable heads for the UK, US, EU and Australia you can now use your Pi in all four corners of the world!
This PSU supports up to 2.5A of current, so it won't let you down when powering hungry devices through your Raspberry Pi 3 Model B
Technical Data
- 5.1V 2.5A Output
- 1.5m Cable
- White with Raspberry Pi Logo
- Input Voltage AC Max: 264V
- Input Voltage AC Min: 90V
- Output Connector: USB Micro
- Output Voltage Nom.: 5.1V
- Interchangeable Adaptor - EU/UK/US/AUS
The below is a copy from https://www.raspberrypi.org/help/faqs/#powerReqs.Here is a table comparing the amount of power drawn in amps under different situations:
Test conditions used a standard Raspbian image (current as of 26 Feb 2016),Pi1 (B+) Pi2 B Pi3 B (Amps) Zero (Amps) Boot Max 0.26 0.40 0.75 0.20 Avg 0.22 0.22 0.35 0.15 Idle Avg 0.20 0.22 0.30 0.10 Video playback (H.264) Max 0.30 0.36 0.55 0.23 Avg 0.22 0.28 0.33 0.16 Stress Max 0.35 0.82 1.34 0.35 Avg 0.32 0.75 0.85 0.23
UBEC's (Universal Battery Eliminator Circuit's) are simply DC to DC step down voltage regulators! This UBEC is perfect for the Raspberry Pi, as it's able to take high voltages (5.5V up to 26V), and outputs a consistent safe voltage of 5V at up to 3A nominal or 5A max! The Hobbywing 5V 3A UBEC is a switch-mode type, which results in it being much more efficient than linear type UBEC's (so your batteries will last longer!)
UBEC's are perfect for applications where you plan to use the Raspberry Pi in a circuit with high voltages such as robots where you'll be driving motors!
Due to the voltage drop caused by the Raspberry Pi, it is recommended to input a minimum of 6.5V to receive a stable 5V output. Anything lower than 6.5V will result in a low voltage warning on the Pi.
Please Note. The Hobbywing UBEC can be set to output either 5V or 6V using an onboard jumper select! Please DOUBLE CHECK your output voltage is correct before connecting your microcontroller or circuit!
Features
- Designed with an advanced switch mode DC-DC regulator IC.
- Battery polarity reversal protection.
- A metal shield covers almost all the electronic components, and a specially made filter is attached to the output wires to significantly reduce the electromagnetic interference.
- The working status is shown by an indicator (LED), which lights when the output is in normal range.
- Output Voltage: [email protected] or [email protected] (Changeable with an output-voltage select jumper)
- Continuous output current: 3 Amps
- Maximum output current: 5 Amps
- Input: 5.5V - 26V (2 - 6 cells lithium battery pack or 5 - 18 cells NiMH /NiCd battery)
- Size: 43mm*17mm*7mm (L*W*H)
- Weight: 11g
Check out our tutorial here: https://www.modmypi.com/blog/using-a-ubec-with-a-raspberry-pi
This neat little board from Nanomesher adds a programmable power switch to your Raspberry Pi A+/B+/2/3/Zero/Zero W, which can be controlled by a single button or IR remote!
This is the Hackable Raspberry Pi Power switch which was successfully funded on Kickstarter in April 2017.
The Hackable Raspberry Pi Switch features an on board and removable Attiny85 Arduino Development MCU, which means the switch is both Smart and Hackable!
The Pi Switch Features
- Single button on/off or Infrared (IR) remote operation (Remote Included)
- LED light to indicate power status
- Blinks twice when Switch receives power
- Turn On when Pi is on
- Blinks when waiting for Pi to turn off
- Turn Off when Pi is off
- Use standard microUSB and USB female socket
- Suitable for mounting on front face plate
- Onboard Attiny85 Microprocessor can be removed and reprogrammed if needed
Package Include:
- Hackable and Smart Pi Power Switch with removable Attiny85 microcontroller
- 4 x Jumper cables to Pi
- High Quality MicroUSB cable (20cm)
- Infrared remote control
While it works out of the box. You can also reprogram it using an Attiny MCU programmer. Code and Guides are included are downloadable from here. There is a package which include both the Switch and Programmer
Being Hackable, the firmware can be modified so that the switch can be used as a development board with these functions:
- One output to trigger relay
- One output to LED
- One analog input to detect voltage between 0-5v
- One input for push button
- One input for infrared receiver which I have the code to distinguish all the buttons in the remote included
- One output to trigger an external digital input (pull down)
Operation Sequence
1. Press once to turn On
2. Press again to trigger shutdown of the Pi's Linus OS using the shutdown script
3. Switch will monitor the Pi and wait for the Pi to be fully shutdown (halt state)
4. Once halt state is detected, cut the power to the Pi.
Downloads
Double 18650 Li-Ion battery Holder for UPS Pico HV3.0A/B/B+ HATs!
The UPS PIco LP/LF/Li-Ion 18650 Battery Holder is an add-on board for the UPS PIco HV3.0A/B/B+ HATs that enables use of the widely available 18650 Li-Ion batteries. Simply swap out the LiPo battery included with the PIco, and you can use 18650's instead! 18650 batteries have a capacity of ~ 3000mAh.
Each 18650 Battery Holder is equipped with inverse battery insertion protection, however we strongly recommend that you use PCB protected batteries.
This is the "Double" 18650 holder, which is able to take two batteries. Batteries are NOT included in the purchase!
The 18650 holder connects to the PIco via a 2-wire JST-XHP-2 Battery Connector, and comes complete with mounting spacers, screws & nuts to mount the PCB above the UPS PIco.
This product is NOT compatible with the Terminal Block PCB.
This product is an add-on board for the UPS PIco and requires a UPS PIco for use. We do not endorsed compatibility with any other product or system, and users who do choose to use the battery holder with another device do so at their own risk.
This adapter is ideal to convert the 3A type C official power supply to micro B for the Raspberry Pi models Zero, 2 and 3.
Specifications:
Material: Plastic and Metal
Color: Available in Black and White
Length: 2.3cm
Connector A: Micro USB Male
Connector B: Type C Female
Package includes:
1 X White Type C Female To Micro USB Male Adapter
This adapter is ideal to convert the 3A type C official power supply to micro B for the Raspberry Pi models Zero, 2 and 3.
Specifications:
Material: Plastic and Metal
Color: Available in Black and White
Length: 2.3cm
Connector A: Micro USB Male
Connector B: Type C Female
Package includes:
1 X Black Type C Female To Micro USB Male Adapter
[Description]
This is a new version of UPS Board.It not only supports Raspberry Pi 4B but also adds type C output. It provides enough power for the Raspberry Pi to make your Raspberry Pi still work while moving, and its design is so smart that you can get rid of troubled of a mass wire. This UPS can provide you with the operation of replacing the battery yourself. This new UPS not only supports an independent RTC module, but also provides a coulomb counter.
You can obtain battery voltage and current information through I2C in the system. Combined with different programming methods, you can inherit the power information into the system. It is also convenient to detect the state of the battery, which can be detected and warned through the program. It can use most of the 18650 standard batteries and fully comply with the battery characteristics in terms of battery life. In addition, the power display provided on the circuit board is also very user-friendly. The illuminated LED light can quickly show the remain power and support the discharging while charging. You can directly connect to the external power supply for charging. At the same time, the Raspberry Pi will not be turned off.
Please install the battery first, then connect the UPS to the Raspberry Pi.
Connecting too many high-power peripherals will lead to insufficient power supply. Please pay attention to the power demand of peripherals.
[Caution - Warning!]
Warning!
Please do not reverse the battery!
This product belongs to the power supply devices.
Please keep it out of the reach of children. Please strictly refer to the instructions for the UPS product. If the battery polarity is reversed, it will directly burn the power management chip of the device and even cause fire or personal injury. Do not add any Components by yourself, all accidental damage caused by the cause is at your own risk.
[ESD Warning]
When connecting the battery, please do not touch the area where the yellow frame is located. ESD may cause damage to your device, so please avoid it.
[Changelog]
update: 2020-4-30
Fixed some bugs.
Upgrade the module functions, add RTC moudle and coulometer voltameter function.
Adding more pogo-pin to support new features.
Update the firmware version.
Changed new conductor to support the new features.
[Features]
New Features
RTC Independent Clock
Current and Voltage Reading
Battery Indicator
Programmable reading of battery voltage in OS(Not Batteries voltage)
Charging Status LED indicator
Old Features
LED remaining battery prompt
Replaceable battery solution
Support Raspberry Pi 4B/3B+/3B
Charging up to 2.1A
Rated discharge power is 15W
Extended Two USBA port power output
Extended type C port power output
Output overcurrent protection
Tap to boot, long press to shut down
Support the charge and discharge power display
The battery holder can be quickly replaced
Synchronous switch charge and discharge
Built-in power path management, support side-loading
Support load high current line compensation function
Adaptive charge current regulation to match all adapters
Support LED power display
Button boot: UPS will start when the button is pressed, Long Press to force turn off
Low power consumption
Multiple protection, high reliability
Output overcurrent, overvoltage, short circuit protection
Input overvoltage, overcharge, overdischarge, overcurrent discharge protection
Machine over temperature protection
[Technical Support]
https://wiki.52pi.com/index.php/UPS_(With_RTC_%26_Coulometer)_For_Raspberry_Pi_SKU:_EP-0118
[Package Includes]
- 1x UPS (With RTC & Coulometer) for Raspberry Pi 4B/3B+/3B
- 4x M2.5* copper stick
- 4x M2.5 screws
- 4x M2.5* long copper stick
- 4x M2.5 nuts
- 1x Acrylic shield
- 1x Instructions
Note: 18650 Battery / Raspberry Pi Board are NOT included

The official Raspberry Pi USB-C power supply is designed to power the latest Raspberry Pi 4 Model B computers, which were released in June 2019.
Featuring a captive USB-C cable, the power supply is available in four different models to suit different international power sockets, and in two colours, white and black.
If you need to use the power supply for an earlier model RPi or the zero you'll need a type C to micro B adapter than you will find at https://www.pishop.co.za/store/rpi-power/black-usb-type-c-female-to-micro-usb-male-adapter
Specifications
Output
- Output voltage: +5.1V DC
- Minimum load current: 0A
- Nominal load current: 3.0A
- Maximum power: 15.3W
- Load regulation: ±5%
- Line regulation: ±2%
- Ripple & noise: 120mVp-p
- Rise time: 100ms maximum to regulation limits for DC outputs
- Turn-on delay: 3000ms maximum at nominal input AC voltage and full load
- Protection: Short circuit protection, Overcurrent protection, Over temperature protection
- Efficiency: 81% minimum (output current from 100%,75%, 50%, 25%)72% minimum at 10% load
- Output cable: 1.5m 18AWG
- Output connector: USB Type-C
Input
- Voltage range: 100-240Vac (rated)
- 96-264Vac (operating)
- Frequency: 50/60Hz ±3Hz
- Current: 0.5A maximum
- Power consumption (no load): 0.075W maximum
- Inrush current: No damage shall occur and the input fuse shall not blow
UL94V-1
AC pin material
Brass (NI plated)
WARNINGS
• This product should be operated in a well-ventilated environment.
• The connection of incompatible devices to this power supply may affect compliance, result in damage to the unit and invalidate the warranty.
SAFETY INSTRUCTIONS
To avoid malfunction or damage to this product please observe the following:
• Do not expose to water or moisture, or place on a conductive surface whilst in operation.
• Do not expose to heat from any source; this is designed for reliable operation at normal ambient room temperatures.
• Do not attempt to open or remove the power supply case.
Getting started
The Raspberry Pi Power over Ethernet HAT is a small accessory for the Raspberry Pi computer. It can only be used with the Raspberry Pi 4 Model B (launched June 2019) and the Raspberry Pi 3 Model B+ (launched March 2018). The PoE HAT allows you to power your Raspberry Pi using Power over Ethernet–enabled networks; for this product to be used, the network it is connected to needs to have power-sourcing equipment installed.
Supplied with this product
- Raspberry Pi PoE HAT
- Mechanical spacers
Other hardware needed
- A Raspberry Pi 4 Model B or Raspberry Pi 3 Model B+
- An Ethernet cable
- Power-sourcing equipment for a 802.3af Power over Ethernet network
Connecting your PoE HAT to the Raspberry Pi
- Before installing the PoE HAT, you must attach the supplied spacers in the four corners of the board
- Then connect the Raspberry Pi PoE HAT to the two 0.1” headers (40 + 4) that are fitted on the Raspberry Pi
- Once the PoE HAT board is connected, you can power the Raspberry Pi through its RJ45 network connector
Disconnecting your PoE HAT
- Take care when separating the HAT from the Pi
- Pull evenly so that it detaches from all the pins at the same rate; do not pull one end of the connector off before the other
Additional information
No modification to the main Raspberry Pi board is needed for this product to work. Please ensure that your Raspberry Pi’s software is up to date for all functionality to be available. The PoE HAT is fitted with a small fan that is controlled by the Raspberry Pi via I2C. The fan will turn on and off automatically depending on the temperature of the main processor on the Raspberry Pi.
Specification
The Raspberry Pi PoE HAT is an add-on board for the Raspberry Pi 4 Model B and the Raspberry Pi 3 Model B+. It allows the Raspberry Pi to be powered via a power-enabled Ethernet network.
- 802.3af PoE
- Fully isolated switched-mode power supply
- 37–57V DC, Class 2 device
- 5V/2.5A DC output
- 25mm x 25mm brushless fan for processor cooling
- Fan control
Safety
IMPORTANT: PLEASE RETAIN THIS INFORMATION FOR FUTURE REFERENCE.
Warnings
This product:
- Shall only be powered using 802.3af-compliant power sourcing equipment; any external power supply used with the Raspberry Pi shall comply with relevant regulations and standards applicable in the country of intended use
- Should be operated in a well-ventilated environment, and should not be covered
- Should be placed on a stable, flat, non-conductive surface while in use, and should not be contacted by conductive items
Instructions for safe use
To avoid malfunction or damage to your Raspberry Pi product, please observe the following advice:
- Do not block or obstruct the fan
- Do not insert anything into the fan at any time
- Do not expose the product to water or moisture, and do not place it on a conductive surface whilst it is in operation
- Do not expose it to heat from any source; the product is designed for reliable operation at normal room temperatures
- Take care whilst handling to avoid mechanical or electrical damage to the printed circuit board and connectors
- Avoid handling the Raspberry Pi while it is connected to a power outlet; only handle by the edges to minimize the risk of electrostatic discharge damage
- All other peripherals used with the Raspberry Pi should comply with relevant standards for the country of use and be marked accordingly to ensure that safety and performance requirements are met; these peripherals include, but are not limited to, keyboards, monitors, and mice used in conjunction with the Raspberry Pi
Compliance
The Raspberry Pi PoE HAT has undergone extensive compliance testing, and meets the following European standards:
- Electromagnetic Compatibility Directive (EMC) 2014/30/EU
- Restriction of Hazardous Substances (RoHS) Directive 2011/65/EU
For all compliance certificates and numbers, please visit www.raspberrypi.org/compliance.
As one of the smallest systems around there are so many amazing things you could do with the Raspberry Pi if it was self-powered and portable. Introducing PiJuice! A fully uninterruptible power supply that will always keep your Raspberry Pi powered.
Our revolutionary PiAnywhere technology contained in every PiJuice HAT - is the best way to take your Pi off the grid! The real time clock (RTC) on board will let your Pi know what time it is even with no power input or internet connection. Alongside this is an integrated microcontroller (MCU) chip which will manage soft shut down functionality and a true low power deep sleep state and intelligent startup.
You will be able to always keep track of the charge levels and other info with the two built-in tri-coloured RGB LEDs, trigger events and scripts with the three programmable buttons and since the PiJuice will use up to just five of your GPIO pins (just power and I2C), the rest are free to diversify your project. The stacking header allows you to continue to use your existing HATs and add-ons with PiJuice.
Keep your Raspberry Pi running with solar, wind and other renewable power.
Ultimate integrated power is one thing but what if we could make the Raspberry Pi renewably powered too? Solar, wind, thermoelectric and other renewable power is free, clean, and green and we're proud to have developed an affordable and efficient renewable power solution for the Raspberry Pi! PiJuice is self-monitoring and, like a space satellite, can become a completely autonomous system. Use the PiJuice as part of an autonomous camera system, weather stations, off-grid desktops, and so many other great outdoor projects. View and buy the solar panels separately.PiJuice Video
https://youtu.be/ESVaLw51YL8
PiJuice Features:
- Onboard 1820 mAh off the shelf Lipo / LiIon battery for ~4 to 6 hours in constant use! (with support for larger Lipo Battery of 5000 or 10,000 mAH+ to last up to 24 hrs +)
- A Full Uninterrupted / Uninterruptable Power Supply solution.
- Designed for the Raspberry Pi boards A+, B+, 2B, 3B, 3B+ and Pi4 but also compatible with Raspberry Pi Zero v1.3 and Raspberry Pi Zero Wireless.
- Integrated Real Time Clock
- Onboard intelligent on/off switch
- Low power deep-sleep state with wake on interrupt/calendar event
- Programmable multi-colored RGB led (x2) and buttons (x3) with super simple user-configurable options
- Hardware watchdog timer to keep your Raspberry Pi on and working in mission-critical remote applications
- Our revolutionary PiAnywhere technology ? the best way to take your Pi off the grid!
- Full power management API available to Raspberry Pi OS with auto shutdown capability when running low on batteries
- Raspberry Pi HAT compatible layout, with onboard EEPROM for easy plug and play operation
- Low profile design to fit inside lots of existing Raspberry Pi cases!
- Enhanced graphical user interface (GUI) available for easy install (via APT)
- Customisable scripts for enhanced flexibility and full report of battery status
- All GPIOs available via stackable header for ease of expandability and connectivity
- Charge via on-board micro USB or via the Raspberry Pi micro USB (or from onboard pin headers)
- Batteries can be charged from different type of sources and voltages
- Replace the battery without downtime. Compatible with any single cell LiPo or LiIon battery
- Fully CE and FCC tested design. Battery safety tested also.
Technical Information
- The EEPROM can be disabled and its I2C address changed for increased compatibility with other boards
- BP7X battery - original battery from Motorola Droid 2 (A955) - 1820mAh battery
- Microcontroller is an ST Micro STM32F030CCT6 ARM Cortex-M0, 48MHz, F64KB, R8KB, I2C, SPI, USART, 2.4-3.6V
- Charge IC - BQ24160RGET Charger IC Lithium-Ion/Polymer, 2.5A, 4.2-10V
- Fuel gauge IC - LC709203FQH-01TWG Battery Fuel Gauge, 1-Cell Li-ion, 2.8%
- EEPROM - CAT24C32WI-GT3 EEPROM, I2C, 32KBIT, 400KHZ, 1V7-5V5
- Optional spring pin - Mil-Max 0929-7-15-20-77-14-11-0
- Compatible with any 4 pin battery on board that can be used with 00-9155-004-742-006 battery contacts from AVX including the BP7X, BP6X, and any compatible batteries including the 1600mAh and 2300mAh ones from CameronSino (CS-MOA853SL and CS-MOA855XL)
- There is an on board 4 pin screw terminal block for larger off board batteries. Any single cell LiPo / LiIon is compatible. However, you use your own sourced battery at your own risk. We HIGHLY RECOMMEND using a battery with an internal protection circuit and a NTC (temp sensor)
- Optional header for offboard button - connected to same output as SW1
- 6 pin breakout header - with two GPIO from the ARM Cortex-M0, Vsys, 5v0, 3v3, GND connections
- Header for optional off board solar panel / wind turbine etc.
- Optional RF Shield attachment - Harwin S02-20150300 (can also double as an inexpensive heatsink)
- Input voltage range - 4.2V 10V
- Output voltage - 3.3V and 5V
- Output amperage - maximum current at 5V gpio is 2.5A and at VSYS output 2.1A, but also this depends heavily on battery capacity. For BP7X have measured around 1.1A at 5V GPIO and around 1.6A at VSYS output. Obviously, this also depends heavily on the current draw demanded by the Raspberry Pi/device itself. To achieve a maximum of 2.5A it will need battery over 3500mAh.
- Boxed weight - 96g
- Boxed dimensions - 12.2 x 10.8 x 3.5 cm
- Unboxed weight - 57g
- Unboxed dimensions - 6.5 x 5.6 x 2 cm
PiJuice HAT box contains
- 1 x PiJuice HAT
- 1 x Battery and battery surround
- 1 x PiJuice guide
- 4 x Mounting posts attached to PiJuice
- 8 x Mounting screws (4 are already assembled to the board)
- 1 x Pogo pin
- 3 x Stickers
Software & Resources
5 built-in USB port, suitable for charging 5 devices at the same time.
There is heat emission hole on the top to prevent it from overheating
Compatible with smart phone and tablet
Compact size, convenient to carry around
Specifications:
Color: White
Size: 62mm x 35mm x 110mm
Input: AC 100-240V (50-60Hz)
Output: DC 5V
Material: ABS (Acrylonitrile Butadiene Styrene)
Plug: EU Plug
Package Includes:
1 x 5 Port Travel USB Charger
Support the powered devices compatible with IEEE802.3af Standard
Transmission range up to 100M
Power output can be matched automatically
Plug and play
1 data&power output port supporting PoE
Storage Temperature: -40℃ ~ 70℃
Storage:5%~90% (noncondensing)
Power cable included
Data sheet http://down.tendacn.com/uploadfile/Datasheet/POE15F%20Datasheet.zip
Overview
The Power Management HAT is a smart power bank designed for Raspberry Pi. With the embedded Arduino MCU and RTC, the HAT features auto power management function which allows the Pi to work more power-efficient and more safely.
If you're looking for some convenient utilities for yor long-term working Raspberry Pi, such as longer battery life, or auto power on-off control, this Power Management HAT would be the ideal choice.
By auto starting up on specified period, and auto shutdown at other time, the HAT can greatly save the battery life. It will monitors the operating voltage/current status of the Raspberry Pi in real time, and can be configured to shut the Pi down according to the operating status. What's more, it comes with a handy power switch for easy on or off (safely shutdown the Pi by software), to avoid data loss caused by unplugging the power supply.
Features
- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
- Onboard ATmega328P MCU, supports Arduino programming
- Onboard PCF8523 RTC chip, provides precise RTC information
- Onboard CP2102 UART converter, for UART communication or ATmega328P programming
- User-defined button, can be used for Raspberry Pi start up, safely shutdown, or other customized function
- Protection circuits such as: power supply anti-reverse, counter current proof, etc. ensures stable and safe operating
- Voltage/current monitoring circuit, monitors the Raspberry Pi operating voltage and current in real time
- Comes with development resources and manual
Specifications
- Controller: ATmega328P-AU
- Communication interface: UART + GPIO
- Baudrate: 115200bps by default (programmable)
- Power supply interface: USB port or PH2.0 connector
- USB power input voltage: 5V
- PH2.0 power input voltage: DC 7~28V (regulated power supply or lithium battery)
- Embedded circuits: power supply anti-reverse, counter current proof, voltage monitoring, current monitoring
- Mounting hole size: 3.0mm
What's on Board

- ATmega328P-AU MCU
- MP1584 power manager
- PCF8523 RTC chip
- CP2102 UART converter
- CAT24C32: EEPROM storage chip
- Raspberry Pi GPIO connector: for connecting Raspberry Pi
- PH2.0 connector: for 7~28V regulated power supply or lithium battery
- USB TO UART: for power input or UART communication
- DEBUG switch:
DEBUG side: power supply will bypass the Arduino and directly provides to Raspberry Pi
the opposite side: power supply is managed by Arduino - PWR button: for Raspberry Pi power on/off, or user-defined function
- RST button: Arduino reset
- Status indicator
- Power indicator
- CR1220 button battery holder
- UART selection:
A: access Arduino via USB to UART
B: control the Raspberry Pi by Arduino
C: access Raspberry Pi via USB to UART
Example

Dimensions

Development Resources
Power Over Ethernet HAT for Raspberry Pi 3B+/4B, 802.3af-compliant
(any backward-compatible future versions will be supported as well)
OLED for real-time monitoring temperature, IP, and fan status

The PoE HAT (B) is a 802.3af-compliant Power Over Ethernet accessory for the Raspberry Pi 3B+/4B. By using this small HAT and some proper 802.3af-compliant power sourcing equipments, it is possible to provide both network connection and power supply for your Raspberry Pi in only one Ethernet cable.
Features at a glance
Standard Raspberry Pi 40PIN GPIO header, supports Raspberry Pi 3B+/4B
PoE (Power Over Ethernet) capability,802.3af-compliant
Fully isolated switched-mode power supply (SMPS)
0.91" OLED, for monitoring processor temperature, IP address, and fan status in real-time
Onboard cooling fan, allows auto running on powerup OR programmable control, configured by switch
Integrates PCF8574 IO expander for I2C bus, providing pin P0 for directly fan control, and more spare IO pins
Specifications
PoE power input: 37V ~ 57V DC in
OLED size: 0.91"
PoE power output: 5V 2.5A DC out
OLED pixels: 128×32
Network standard: 802.3af PoE
OLED driver: SSD1306
Dimensions: 56.5 × 65mm
OLED display colour: white
For use with Raspberry Pi 3B+/4B

Standard Raspberry Pi 40PIN GPIO stackable header, allows connecting other HATs
Power Over Ethernet
providing both network connection and power supply for your Raspberry Pi in one cable

0.91" OLED display
128 × 32 pixels, I2C-bus controlled
monitoring processor temperature, IP address, fan status in real-time

Cooling fan
allows auto running on powerup OR programmable control, configured by switch
automatically turn on/off depending on the Raspberry Pi processor temperature

Onboard PCF8574 chip
PCF8574 IO expander for I2C bus, providing 8 IO pins, of which P0 for fan control
and extra spare pins on solder pads (P1-P7, INT)

Pinout definition

Outline dimensions

Resources & Services
WIKI: www.waveshare.com/wiki/PoE_HAT_(B)
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