PiZ-UpTime PLUS

Overview
Features
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PiZ-UpTime PLUS


Overview

Guaranteed reboot after shutdown!

After a soft shutdown, reboot the Raspberry Pi by toggling power. Accomplish this by disconnecting the USB power source or installing an on/off switch.

For remotely deployed Raspberry Pi’s, e.g. for monitoring temperature in a refrigeration unit, using a Pi with solar panels, other green energy sources, or using a Pi in an automobile etc. this is an issue. The PiZ-UpTime PLUS addresses this problem without requiring a “truck roll” to reboot each Pi.

PiZ-UpTime PLUS supplies intelligent UPS capability in a Raspberry Pi-Zero-form-factor. Its design supports the use with regular sized Raspberry Pi’s e.g., Pi-3 and Pi-4. To operate a Pi-Z-UpTime PLUS, connect a battery and start the provided Python script. The connector (2×4 pin connector) on PiZ-UpTime PLUS follows the 40 pin Raspberry Pi header format. Besides powering a Raspberry Pi, PiZ-UpTime PLUS also powers other SBC’s following the Raspberry Pi header format. Alternately, by using the USB Power Out port other devices take advantage of the PiZ-UpTime PLUS capabilities.

PiZ-UpTime PLUS allows different modes of operation. For shutdown they are:

  • Initiate a soft shutdown once power fails.
  • Operate as a UPS until the battery runs low or the power returns. If the battery runs low, initiate a soft shutdown.

When power returns:

  • Start the Raspberry Pi immediately.
  • Wait for a designated period for power to stabilize or wait for other sensors / devices to come up before starting the Pi.

Select the operating modes as needed.  LED’s provide operational information. Sample Python code provides information on operational parameters

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Features

  • Guarantees reboot after shutdown and when power returns.
  • Several operating modes (all controlled by a Python script):
      1. operates as UPS
      2. shuts down on power failure
      3. reboot immediately when power returns
      4. wait after power returns
  • Very configurable – all parameters controlled using the Python script. Sample script provided.
  • Several operating parameters monitored:
      1. Input V
      2. Output V
      3. Battery V
      4. Input current
      5. Battery current
      6. board temperature
  • Uses Li-Ion batteries. Batteries not included.
  • Provides UPS functionality for all Pi models with a 40 pin header, including Pi-4.
  • Provision for on-off switch, external power in / out / external battery connections. LED operation controlled via a jumper.

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Pi Models Supported

Supported Pi ModelsThe PiZ-UpTime PLUS product supports any Raspberry Pi or other SBC with a 40-pin header compliant to Raspberry Pi Foundation header definition. Pins 2,4 supply power. I2C is used to control operating parameters.   External devices are powered using USB out port.

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