UPS PIco HV4.0B/C Stack Supports 5V Solar Panels

 Designed for the Raspberry Pi® 4 Model B, Compatible with all former models of Raspberry Pi®

Short System Overview

UPS PIco HV4.0B/C  Stack is an Ultimate Powering System HAT that adds a wealth of innovative powerful and development features to the Raspberry Pi® microcomputer! It has been designed especially for the Raspberry Pi® 4, and taking into account all enhanced power and cooling requirement of the Raspberry Pi® 4 models, however in addition it is still compatible with all former Raspberry Pi models. The core functionality of the UPS PIco HV4.0B/C  Stack is to protect and automatically shut-down your Raspberry Pi if there is a cable power failure and can be set to automatically monitor and reboot your Pi once cable power has been restored! However, it is only a small part of plenty and powerful functionalities that are implement on this small HAT.

The UPS PIco HV4.0B/C  Stack is the only one on the market that offers such enhanced set of features at once:

General

•     HAT Dimensions Compliant
•     Email broadcasting on events (Cable Power loss/return, Wake-up, User Button, A/D etc)
•     Plug and Play
•     Ultra light System.d Daemon based on threading
•     GPIO free (all GPIOs are available for user application) interaction with Raspberry Pi® via I2C
•     Enhanced System Monitoring and Programming API
•     Labeled J8 Raspberry Pi® GPIO Pins for Easy Plug & Play of experimental cables
•     Standard THT 40 Pin connector (not soldered)
•     Remote bootloader for Live Firmware Update on remote locations
•     Local bootloader for Live Firmware Update

Powering Options

•     2 independent power back-up sources: Battery and Super Capacitor automatically switching between them according to powering condition, used together or separately.
•     Enhanced Line Interactive UPS functionality (25us response time)
•     Additional File Safe Shutdown and Start-up Functionality on a Single Button
•     Continuously This email address is being protected from spambots. You need JavaScript enabled to view it. supply on battery power backup
•     Programmable Battery backed-up of independent power sources of 200@5V and 3V3
•     Intelligent Mobile Power Bank functionality with save shutdown/start-up, with Internal or External Slide Switch and RTC

Supported Batteries Types, Super Capacitors and Capacities

•     Supports a wide range of different Chemistry batteries and Super Capacitors (LiPO/LiFePO4/Li-Ion/NiMH/SAL/Super Capacitor)
•     Support for Li-Ion 18650 low cost batteries (from Electronic Cigarettes) with dedicated mounting base PCB HAT screwed on top
•     Support for LiPO 18650 batteries with dedicated mounting base PCB HAT screwed on top
•     Support for LiFePO4 18650 batteries with dedicated mounting base PCB HAT screwed on top
•     Support for Super Capacitor 100F soldered to PCB
•     Support for Super Capacitor 300F as a separate PCB HAT screwed on top
•     Support for Super Capacitor 500F as a separate PCB HAT screwed on top
•     Both Back-up Power Sources (Battery and Super Capacitor) can be used at once (with automatic selection and switching) or one of them, thanks to ultra low voltage High Current Boost Converter
•     Supports 5V Solar Panels

Embedded Peripherals and Interfaces

•     2 User Programmable buttons
•     2 User Programmable LEDs (with mapping capability of the system behavior LEDs)
•     System File Safe Shutdown/Start-up button with additional cable connectivity to external button
•     2 x 200 ks/s ESD protected A/D with voltage follower (high impedance)
•     ESD Protected 3V3/5V0 1-wire interface
•     Infra-Red Receiver Sensor Interface (IR Not Included) directly connected to the GPIO18
•     Integrated Hardware Real Time Clock (RTC) with Battery Back-Up
•     Optionally TCXO with Ultra Stable RTC (1.5 – 5 ppm @+25°C) – Error Over Time ±0.432sec/day; ±12.960sec/month; ±2.628min/year
•     DPDT 2A RELAY on the same PCB
•     Programmable Integrated PWM Sounder (programmable by user API or Automatic), able to play music
•     Programmable embedded quad +/-12V RS232 interface (2 at once time).
•     Programmable Integrated PWM FAN (integrated within the basic order) running based on Raspberry Pi Core temperature

Embedded Sensors

•     Single High-side bi-directional hardware current sensing monitor with power calculation
•     onboard temperature sensor
•     Battery Level Voltage
•     Super Capacitor Voltage
•     Raspberry Pi GPIO 5V level

User/Programmer Interface

•     I2C PIco API Interface for Control and Monitoring, with over 50 programming registers
•     Support for 4 different users selectable I2C addresses sets:
  •         DEFAULT: 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F
  •         NO_RTC: 0x69, 0x6
  •         ALTERNATE1: 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F
  •         ALTERNATE2: 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F

RTC Support and System Scheduler

•     RTC Scheduler
•     Enhanced shutdown and start-up system based on various internal/external events events: Time stamp, A/D level, RS232 data, Cable Powering/Loss (UPS), Battery Level, I/O Level, etc

Case Compatibility

•     No Additional External Power Input Required. System is monitoring power status over 5V GPIOs, therefore is compatible with 99% of all existing cases
•     Fits Inside Most Existing Cases as no extra cabling is needed

System Monitoring

•     Status Monitoring – Powering Mode, Inbound current, Outbound current, Powering Voltage, Battery Voltage, Super Capacitor Voltage, Temperature (Raspberry Pi Core and UPS PIco), Timer State
•     Events Pi Log feature
•     System LEDs – SYS, BAT, CHG, INF, FAN, SCA, TMR, TMP (optionally selected can be mapped to User LEDs)
•     System Healthy, that informs user remotely if Raspberry Pi and UPS Pico HV4.0B are running properly and system is power protected (based on various internal system triggers)

User Applications Security

•     (optional) 2-way XTEA Based Encryption Engine for User Intellectual Properties protection

System Protection

•     Direct Raspberry Pi® Hardware Reset Button via Spring Loaded Pogo Pin point to RUN
•     Direct Raspberry Pi® Hardware ON/OFF via Spring Loaded Pogo Pin point to PE, Even if Powering Cable is entered to Raspberry Pi®
•     Programmable Watch-Dog Hardware feature (Still Alive Timer)
•     PPTC 3A@5V fuse
•     ZVD circuit on all 5V GPIO connections
•     Micro-controller based watch-dog
•     Over Temperature protection
•     Over Current protection

System Design

•     Designed and Simulated with PDA Analyzer with one of the most advanced CAD/CAM Tools – Altium Designer
•     Design Based on Microchip 16-bit 16 MIPS micro controller
•     Industrial Originated

PCB Construction

•     2 oz copper PCB manufactured for proper high current supply and cooling
•     6 mils track/6 mils gap technology 6 layers PCB
•     PCB Surface Finishing – Immersion Gold
•     Multi-layer Copper Thermal Pipes for increased System Thermal Response and better passive coolin

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