Reducing Arduino Power Consumption
Contributors:
Alex the Giant
Alex the Giant 
Resources and Going Further
More information on low-power modes and options can be found in the datasheet for the 328P.
For more power-related fun, check out the following SparkFun tutorials.
Photon Remote Water Level Sensor
Learn how to build a remote water level sensor for a water storage tank and how to automate a pump based off the readings!
Current Sensor Breakout (ACS723) Hookup Guide
Learn how to measure the current consumption of your project using the ACS723 Current Sensor.
Power Delivery Board - USB-C (Qwiic) Hookup Guide
This guide will go over how to use the USB Type-C Power Delivery Board.
SparkFun RTK Express Hookup Guide
Learn how to use the enclosed RTK Express product to achieve millimeter level geospatial coordinates.