How to minimize energy consumption in sleep mode for a periodic on/off cycle?

[martin229101]

I'm working on a project where I need to minimize the energy consumption of my ESP32 while it's in sleep mode. My goal is to have the device operate for a certain amount of time, then enter sleep mode for one hour, and wake up again after that period.

I have reviewed the deep sleep example, but I'm struggling to fully understand how it works. Specifically, I'm unsure how to implement a reliable cycle where the device sleeps for exactly one hour before waking up and resuming operation.

Here are my specific questions:

What is the best approach to ensure the device sleeps for one hour with minimal energy consumption? How do I set up the deep sleep mode correctly for this periodic on/off cycle? Are there any additional tips or best practices to further reduce power consumption in this scenario? Thank you for your help!