This project was to build a simple garage security system to alert of intruder access to the garage by notification over Wifi.
Parts list
Wemos D1 mini & mini protoboard
The esp8266 is the workhorse of any project - it monitors the sensors and sends notifications over Wifi. I used the Arduino system with Platformio for development.

For the small amount of circuitry required one of these tiny protoboards:
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