Wireless MQTT Window Sensors with the ESP-01
These are arduino coded battery powered MQTT window sensors for use with home assistant or other smart home hubs.
Parts list here:
Bare Reed Switches: https://amzn.to/2uJub7r
ESP-01 Microcontrollers: https://amzn.to/2IrlaSc
Resistors: https://amzn.to/2IrFx1Q
Soldering Iron: https://amzn.to/2Gys5sh
USB to TTL Adapter: https://amzn.to/2EhCcQu
3d Printer: https://amzn.to/2GyXXx8