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Introduction

The SparkFun Qwiic 5V Boost - AP3012K converts the logic-level and boost the power of the Qwiic connect system from 3.3V, to 5V on its PTH pins. This is handy for connecting any I2C device that requires a higher supply voltage, such as super bright LEDs or mechanisms like a DC fan on our air quality sensors. On the board, we also provide 3V3/5V jumpers, which can be used to configure the logic-levels of the I2C PTH pins. Therefore, this board can be utilized to connect an I2C device that requires any combination of 3.3V/5V for its power and/or signals.

Note

The boost circuit on this board is rated to source up to a 100mA at 5V output, with 90% efficiency. However, users should note that this limitation is not only dependent on the load being connected, but also the amount of current that is being sourced to the Qwiic connector system.

In this guide we'll cover how to utilize the Qwiic 5V Boost with two 5V I2C devices; such as the BlinkM LED and Sensirion SEN55 sensor. To follow along with this tutorial, users will need the following items:

Warning

Soldering is required for this board.

Tip

The particulate matter sensor requires an extra GND connection to enable the I2C interface.

Note

These other Sensirion particulate matter sensors, may also be used in place of the SEN55:

Topics

This document contains two main sections: Quickstart Guide and Hardware sub-sections.

  • The Quickstart Guide assumes a working knowledge of development boards and the required software to program them for your project's needs. It covers the basic hardware information and assembly instructions users would need to get started with this product.
  • The Hardware sections provide:
    • An overview of the Qwiic 5V Boost - AP3012K board and its major components. Refer to this page for information on the connectors, breakout pins, and jumpers.
    • Assembly instructions to utilize this product with compatible 5V I2C devices.

Resources and Support

You'll find the board design files (KiCad files & schematic), relevant documentation (datasheets, white papers, etc.) and other helpful links on the Resources page. Lastly, the Support section includes a Troubleshooting page that includes any helpful tips specific to this board as well as information on how to receive technical support from SparkFun.