Raspberry Pi Power Management HAT, Embedded Arduino MCU and RTC

Raspberry Pi Power Management HAT, Embedded Arduino MCU and RTC

$19.89

Brand：Spotpear

SKU：0102032

Date：2020-08-03 16:29

Part Number：

Power-Management-HAT

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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