LiPo Fuel Gauge (MAX1704X) Hookup Guide
Contributors:
bboyho
bboyho 
Software Installation
Note: This example assumes you are using the latest version of the Arduino IDE on your desktop. If this is your first time using Arduino IDE, library, or board add-on, please review the following tutorials.
If you've never connected an CH340 device to your computer before, you may need to install drivers for the USB-to-serial converter. Check out our section on "How to Install CH340 Drivers" for help with the installation.
- Installing the Arduino IDE
- Installing an Arduino Library
- Installing Board Definitions in the Arduino IDE
If you've never connected an CH340 device to your computer before, you may need to install drivers for the USB-to-serial converter. Check out our section on "How to Install CH340 Drivers" for help with the installation.
SparkFun MAX1704x Fuel Gauge Arduino Library
The SparkFun MAX1704x Fuel Gauge Arduino Library can be downloaded with the Arduino library manager by searching 'SparkFun MAX1704x Fuel Gauge' or you can grab the zip here from the GitHub repository to manually install.
SparkFun Qwiic OLED Arduino Library
For users using a Qwiic Micro OLED to display the readings, the SparkFun Qwiic OLED Arduino Library can be downloaded with the Arduino library manager by searching 'SparkFun Qwiic OLED' or you can grab the zip here from the GitHub repository to manually install.
Note: There are two different Arduino libraries that can be used for the Qwiic Micro OLED. In this tutorial we are going to use the latest Qwiic OLED Arduino Library. You can use the older Micro OLED Breakout Arduino Library as well. However, you will need to adjust the example code to work with the alternative library.