This is the case of my self-designed window sensor. It is based on an ESP8266 and lasts several years on one battery charge. I designed the board especially to get the deep-sleep under control. In my youtube-video (https://youtu.be/vxbuO1zWo3w) I explained exactly how I did it. All the files you need to build the device can be found on Github.

Print Settings

Printer Brand:

Anet

Printer:

Rafts:

No

Supports:

Resolution:

0.2

Filament: eryone PLA white

Category: Electronics