Intelligent Power Management Board ATmega328P MCU PCF8523 RTC Clock Built-in Protection Circuit Smart Control Module for

Batteries are not includedOverview Built in ATmega328P Single Chip Microcomputer and RTC Clock Controller Board for Raspberry Pi Supporting Automatic Start up and Shutdown ProgramProving Intelligent Power Management for Your Project to Reduce Power ConsumptionProtect your Data From Being Lost in Suddenly Power OffFeature Based on Raspberry Pi 40PIN GPIO Interface Compatible with Most Raspberry Pi Series MainboardATmega328P MCU SupportProgrammingBuilt in PCF8523 RTC Clock Accurate Time ManagementBuilt in CP2102 Chip for Serial Communication and Program Downloading for ATmega328PCustom Button Included for Various Usage By ProgrammingBuilt in Protection CircuitVoltage and Current Monitor Included Real time Detection for Working Current and Voltage is EnableSpecifications MCU Chip ATmega328P AUCommunication Interface UART GPIOCommunication Baud Rate 115200bps Default could be changed by reprogramming Support USB Power Supply or PH2 0 Power SupplyUSB Input Voltage 5VPH2 0 Input Voltage DC 7 28V Power Supply or Lithium BatterySize 56 5mm x 65mmFixing Hole Diameter 3mmFor more info please click here www waveshare net wiki Power Management HATPS This link is in Chinese you may read it with Google TranslationPackages Included Power Management HAT x1Battery box x1Battery Charge x1USB cable x12x20PIN Connector x1Screws Kit x1