#ConnectedChristmas2020

#ConnectedChristmas2020 is an art project whose goal is to help people celebrating Christmas connect to each other with the help of IoT technology.

This initiative is free to use and the server will be operated till 15th, January 2021.

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Backup your config files to Google Drive – from a Home Assistant running in Docker

HASS.io users have been enjoying an easy to use add-on that can save their configurations to Google Drive but users running Home Assistant in Docker can face some challenges when trying to do that. Let’s see what are the tricks!

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RFID Gate Control with MQTT connectivity to Home Automation HUBs

This project started as I was looking for a cheap device that can:

  • Operate directly from 230V
  • Control devices via relays (for example welcome lights or gate opener coils)
  • Read RFID Tags
  • Connect to a Home Automation HUB in a wireless way
  • Accept numerous digital inputs (for example doorbell button)
  • Operate over MQTT

As a result of not finding any suitable device I decided to design my own one.

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A proper guide to the MQ9 Sensor

Many tutorials can be found for the Flying-Fish MQ9 sensor boards however the information found online is a bit fishy. Apparently many of those tutorials are copied from each other and I believe some parts of the explanation is missing. The goal of this post is to provide an explanation of how to get a (close to) real gas concentrate measurement. This tutorial can be used with any device that accepts MQ9 sensor boards like arduino, esp8266, esp32 etc..

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