Waveshare Pico UPS-B shield - Zephyr

.. _waveshare_pico_ups_b_shield:

Waveshare Pico UPS-B shield ###########################

Overview

The Waveshare Pico UPS-B shield is an uninterruptible Power supply (UPS) module designed for the Raspberry Pi Pico which uses the Texas Instruments' INA219 current/power Monitor. It communicates with the Raspberry Pi Pico over I2C

.. figure:: waveshare_pico_ups_b.jpg :align: center :alt: Waveshare Pico UPS-B shield

Waveshare Pico UPS-B shield

Hardware

INA219

  - Senses bus voltages from 0 to 26 V
  - Reports current, voltage and power
  - 16 Programmable Addresses
  - SOT23-8 and SOIC-8 packages
  - Calibration registers

ETA6003

  - Switching charger with power path management
  - Up to 95% DC-DC efficiency
  - 0mΩ power path MOSFET
  - Up to 2.5A max charging current

Connectivity

  - Raspberry Pi Pico compatible (I2C)
  - 2 pin jst header for Li-po battery

Power Supply
```
  - 3.3V ~ 5V
```

Components

  - Power switch
  - Power LED
  - Charging LED

For more information about the Waveshare Pico UPS-B:

Waveshare Pico UPS website_
INA219 data sheet_
ETA6003 data sheet_

Programming

Set --shield waveshare_pico_ups_b when you invoke west build or cmake in your Zephyr application. For example:

.. zephyr-app-commands:: :zephyr-app: samples/sensor/ina219 :board: rpi_pico :shield: waveshare_pico_ups_b :goals: build flash

.. _Waveshare Pico UPS website: https://www.waveshare.com/wiki/Pico-UPS-B

.. _INA219 data sheet: https://www.ti.com/lit/ds/symlink/ina219.pdf

.. _ETA6003 data sheet: https://www.waveshare.com/w/upload/3/3f/ETA6003.pdf