omni-sense-cpp

ESP8266 using many sensors

This is a sensors firmware for the Wifi-capable ESP8266 controller. Support for several environment sensors (BME280, BMP280, SI7021, TSL2561, TSL2591, PPD42NS, DHT22) is implemented, which enables the measurement of temperature, humidity, pressure, luminosity, dust and rain. Values are periodically measured and published via MQTT.

Prerequisites

• ESP8266 or WeMos D1 microcontroller
• micro-USB cable
• Arduino IDE
• Wifi
• MQTT broker

Configuration

• inside credentials.h configure your WiFi and MQTT credentials
• inside omni-sense.ino (de)activate the sensors you want to support in your build by uncommenting the INCLUDE_* lines
• inside omni-sense.ino set MQTT_PREFIX_LOCATION and MQTT_PREFIX_ROOM to desirable values, they will be used for naming the published MQTT topics

Wiring

• connect the sensor(s) to the I2C ports (SDA, SCL) of the controller
  • in case of the ESP8266 NodeMCU and Wemos D1 Mini, the sensor's SCL and SDA should be hooked up to the controller's D1 and D2 pins respectively

Installation

With the ESP8266 connected to the computer, the firmware can be compiled and flashed onto the controller using the Arduino IDE.

Once running, the controller should periodically publish topics to the broker.