arduino-leonardo-eth-w5500-powerdown-example
Arduino W5500 Ethernet Controller Power Saving Example

This GitHub link is for a project titled "arduino-leonardo-eth-w5500-powerdown-example".
This project provides example code for reducing power consumption using an Arduino Leonardo board and a Wiznet W5500 Ethernet shield.
The code demonstrates how to put the Ethernet shield into sleep mode and reactivate it. By doing so, it minimizes power consumption and extends battery life.
For more detailed information, please refer to the project's README file.
The project also provides measurements for the operation of the W5500, not just in Powerdown mode.