https://github.com/denwilliams/envirophat-mqtt

Publish sensor updates from Enviro pHat to MQTT
https://github.com/denwilliams/envirophat-mqtt

envirophat mqtt phat

Last synced: about 7 hours ago
JSON representation

Publish sensor updates from Enviro pHat to MQTT

• Host: GitHub
• URL: https://github.com/denwilliams/envirophat-mqtt
• Owner: denwilliams
• License: mit
• Created: 2017-06-03T08:53:48.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2018-11-05T20:51:07.000Z (about 6 years ago)
• Last Synced: 2024-04-14T10:06:31.973Z (10 months ago)
• Topics: envirophat, mqtt, phat
• Language: JavaScript
• Size: 22.5 KB
• Stars: 6
• Watchers: 1
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# envirophat-mqtt

Publish sensor updates from Enviro pHat to MQTT

Calibrates the temperature reading for variance caused by heat from the CPU of the Raspberry Pi and smooths the data using a moving average.

A factor of 1.2 works well for me, but may vary depending on case and environment.

## Running

```

sudo npm i -g envirophat-mqtt

envirophat-mqtt

```

Use PM2 or similar to run on startup.

## Configuration

Create a config file at `/etc/envirophatmqtt/config.yml`

Check the available settings and defaults in `config/defaults.yml`.

Example:

```yml

---

mqtt:

  host: '192.168.0.123'

  topic: sensor/loune/input

temperature:

  factor: 1.2

interval:

  duration: 60000

```

## Pre-requisites

1. Pimoroni libs: `curl https://get.pimoroni.com/envirophat | bash`

2. Node js

## Why Node js?

Selfish reason: Because all my existing home automation runs on Node js managed with PM2.

Even though the provided libraries are Python, and it's pretty easy to publish to MQTT from Python, I wrote this so I could run my entire platform on Node js.