FelixBetz / Esp8266MotionSensor

This project uses NodeMcu (ESP8266) to detect movement with 3 motion sensors (Hailege AM312 ). The state of the motion sensor is sent via MQTT. The project is ready for Homeassistant auto discovery.

Esp8266MotionSensor

This project uses NodeMcu (ESP8266) to detect movement with 3 motion sensors (Hailege AM312 ). The state of the motion sensor is sent via MQTT. The project is ready for Homeassistant auto discovery.

BOM (bill of materials)

• NodeMCU ESP8266 WiFi Module
• 2x Hailege AM312

Wiring

• PowerSupply of the Motions Sensors: 3.3V
• First Motion Sensor (Out Pin) is connceted to D0/GPIO16
• Second Motion Sensor (Out Pin) is connceted to D1/GPIO5
• Third Motion Sensor (Out Pin) is connceted to D2/GPIO4

Developing Environment

• VS Code is used as IDE
• PlatformIO extension for building/uploading code
• 2 building enviorments:
  • [env:nodemcuv2]: using COM port to flash software
  • [env:nodemcuv2_ota]: using ArduinoOTA to flash over the air via WiFi

Features

• ArduinoOTA to flashing OTA
• Home Assistant auto discovery
  • discovery topic: homeassistant/binary_sensor/motion_sensor_floor_01/config

    {
      "name": "Motion Sensor Floor",
      "unique_id": "motion_sensor_floor_01",
      "device_class": "motion",
      "state_topic": "homeassistant/binary_sensor/motion_sensor_floor_01/state",
      "expire_after": "60"
    }

• send motion state via MQTT
  • state topic: homeassistant/binary_sensor/motion_sensor_floor_01/state (states: OFF or ON)

Getting Started

1. install VS Code and PlatformIO extension

2. enter secrets

   • rename secrets_dummy.h to secrets.h
   • enter your connection secrets

    // Wifi settings
    #define WIFI_SSID "";
    #define WIFI_PASSWORD ""
   
    // MQTT setting
    #define MQTT_SERVER ""
    #define MQTT_USER ""
    #define MQTT_PASSWORD ""

3. select [env:nodemcuv2] enviroment

4. build and upload