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.
Printer Brand:
Anet
Printer:
A8
Rafts:No
Supports:
Yes
Resolution:0.2
Filament: eryone PLA white
Category: ElectronicsThe author marked this model as their own original creation. Imported from Thingiverse.