@iainfarq/homebridge-bme280

1.4.0 • Public • Published

homebridge-bme280

Bosch BME280 temperature/humidity/barometric pressure sensor service plugin for Homebridge.

NPM Downloads

  • Display of temperature, humidity and Barometric Pressure from a BME280 connected to a RaspberryPI.
  • Archives results every hour to a google spreadsheet
  • Support the graphing feature of the Eve app for trends

Forked from homebridge-280 to use bme280, which has a full implementation of the BME280 options. See the datasheet for all oversampling and filtering options.

Installation

  1. Install Homebridge using npm install -g homebridge
  2. Install this plugin npm install -g @iainfarq/homebridge-bme280
  3. Update your configuration file - see below for an example

Follow the excellent directions in the bme280 package to connect the device to the I2C bus.

Configuration

  • accessory: "BME280"
  • name: descriptive name
  • name_temperature (optional): descriptive name for the temperature sensor
  • name_humidity (optional): descriptive name for the humidity sensor
  • refresh: Optional, time interval for refreshing data in seconds, defaults to 30 seconds.
  • options: options for bme280. Note that the 'forcedMode' option is set to true by default; this should better match any homebridge use - self heating is reduced, and the sensor is only active once per refresh cycle.

If you get an I/O error, make sure the I2C address is correct (usually 0x76 or 0x77 depending on a jumper).

Simple Configuration

{
  "bridge": {
    "name": "BME280Example",
    "username": "CB:22:33:E2:CE:31",
    "port": 51826,
    "pin": "033-44-254"
  },
  "accessories": [
    {
      "accessory": "BME280",
      "name": "Sensor",
      "name_temperature": "Temperature",
      "name_humidity": "Humidity",
      "options": {
        "i2cBusNo": 1,
        "i2cAddress": "0x77"
      }
    }
  ],
  "platforms": []
}

More complex configuration, using all available bme280 options:

{
  "bridge": {
    "name": "BME280Example",
    "username": "CB:22:33:E2:CE:31",
    "port": 51826,
    "pin": "033-44-254"
  },
  "accessories": [
    {
      "accessory": "BME280",
      "name": "Sensor",
      "name_temperature": "Temperature",
      "name_humidity": "Humidity",
      "refresh": 15,
      "options": {
        "i2cBusNo": 1,
        "i2cAddress": "0x77",
        "humidityOversampling": "OVERSAMPLE.X8",
        "pressureOversampling": "OVERSAMPLE.X16",
        "temperatureOversampling": "OVERSAMPLE.X2",
        "filterCoefficient": "FILTER.F16",
        "standby": "STANDBY.MS_20",
        "forcedMode": false
      }
    }
  ],
  "platforms": []
}

This plugin creates two services: TemperatureSensor and HumiditySensor.

Credits

  • NorthernMan54 - Barometric Pressure and Device Polling
  • simont77 - History Service
  • fivdi - Comprehensive implementation of the BME280 interface

License

MIT

Dependents (0)

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Install

npm i @iainfarq/homebridge-bme280

Weekly Downloads

0

Version

1.4.0

License

MIT

Unpacked Size

14.7 kB

Total Files

6

Last publish

Collaborators

  • iainfarq