A simple example to use a PIR motion sensor connected to a NodeMCU board (ESP8266).
configuration.yaml :
binary_sensor:
platform: mqtt
state_topic: 'office/motion/status'
name: 'Motion'
sensor_class: motion
- PIR leg 1 - VCC
- PIR leg 2 - D1/GPIO5
- PIR leg 3 - GND