smart_home_module

Simple module based on open hardware devices.

Requirements

• Arduino tool
• libraries:

1. ArduinoJson (https://github.com/bblanchon/ArduinoJson)
2. SHT11 (https://github.com/practicalarduino/SHT1x)
3. Dust sensor library (https://github.com/ricki-z/SDS011)

Hardware

• ESP8266 module, eg: ESP8266MOD
• SHT11 (temperature and humidity sensor)
• SDS011 module (dust sensor)

Description

1. Istall latest 'Arduino' tool(https://www.arduino.cc/en/Main/Software)
2. Install ESP8266 toolchain(https://github.com/esp8266/Arduino)
3. Install Arduino ESP8266 filesystem uploader(https://github.com/esp8266/arduino-esp8266fs-plugin)

Functionality

1. User button usage:

• no press after restart -> starting 'normal mode'
• short press(<5s) after restart -> starting 'setup mode'
• long press (>5s) after restart -> restoring default data and starting 'setup mode'

LED code

• 10 short blinks -> device is starting up after restart or power on
• 1 long blink -> device mode is WIFI_STA. It means that wifi module tries to connect to defined wifi network
• 2 long blinks -> device mode is WIFI_AP_STA. It means that wifi module create own wifi network(SSID and password are defined) and tries to connect to defined wifi network
• 3 long blinks -> device mode is WIFI_AP. Module tries to create own wifi network
• 2 short blinks (after 1 or 2 long blinks) -> device is connected to external network(STA).

IoT node configuration

Each wifi mode(WIFI_STA/WIFI_AP_STA/WIFI_AP) supports http server. It allows for easly reconfiguration via web page. Configuration page is available on:

• 192.168.4.1 for wifi network created by node(mode: WIFI_AP_STA, WIFI_AP)
• assigned IP address(mode: WIFI_STA, WIFI_AP_STA).