(490) Unknown ESP32 saving: Light Sleep, Clock Reduction, Modem Sleep, Hibernation, and a few tricks

This is a replay of video 410 (during my summer break)
We all know we send our ESP32s to deep sleep to save energy. But do you know other energy-saving possibilities like light sleep and clock reduction? And what about modem sleep or hibernation?

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ESP32 Adapter board: https://s.click.aliexpress.com/e/_A1zQa8
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USB-Serial Adapter 3.3V: https://s.click.aliexpress.com/e/_DBkxC35 or https://amzn.to/3lBqSqD

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