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.
INA169 Breakout Board Hookup Guide
How to interface with the INA169 Breakout Board to measure current.
SparkFun Qwiic Thermocouple Hookup Guide
Learn how to hook up your Qwiic Thermocouple Amplifier.
MicroMod Ethernet Function Board - W5500 Hookup Guide
Add Ethernet and PoE capabilities to your MicroMod project using the Ethernet Function Board - W5500.
IoT RedBoard ESP32 Development Board Hookup Guide
Delve into the functionality-rich world of the IoT RedBoard ESP32 Development Board!