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.
| Case_for_Window_Sensor.stl | 57.4KB |
