Creating an NFC Card Reader for Home Assistant

 

Every wish you could tap your phone, or a 'credit card' to a reader in your home and have it kick off an automation or scene?  Home Assistant has supported the use of NFC tags for multiple years now.  This article provides supporting information for building your own NFC card reader for use in Home Assistant.  It is recommended that you first watch the YouTube video of this project.

Local Automation for a Window Air Conditioner

 

I recently added a window air conditioner to keep the bedroom cool at night.  This air conditioner was a "smart" unit, with built-in wifi.  But like most commercial smart devices, it required installation of a (poorly reviewed) mobile app, creation of a cloud account and Internet connectivity (with reports that the unit routinely dropped off of wifi).  While I did want to use automation for control of this AC unit, I wanted that control to be local like most of my other devices.  So that's what I set out to do. 

Adding Local SiriusXM and Touch to the DIY Amp

 

This is a continuation of the DIY amp project.  This enhancement covers creating a local SiriusXM server for streaming music directly to the amp, along with adding new touch controls for selecting a SiriusXM channel... without the need for any other device or interface.  Although I'll show adding an optional Home Assistant interface for Sirius XM channels as well.

Moving Home Assistant to Proxmox

 

This article is a companion piece to my YouTube video that walks through the entire step-by-step process of installing Proxmox and moving your current Home Assistant install to a new Proxmox virtual machine.  This entire process can be done in under an hour with less than 5 minutes of downtime for Home Assistant and doesn't require any specialized Linux or Proxmox knowledge.

Adding MQTT to the Arylic DIY Amp with an ESP32

 

Arylic Up2Stream DIY Amp v4

The Arylic Up2Stream DIY Amp is a feature rich, great sounding amplifier that can be used to add all sorts of "smart" features to an old pair of speakers you have sitting in a closet or the attic.  By default, access to many of these features require that you install a mobile app and use a cloud server. But of course, as always, we want to focus on completely local control.  This article will cover using both local options via some of the features of the amp itself, but more importantly substantially expanding these options by using a connected ESP32 to provide MQTT access to nearly every option.

Standard Wiring Diagrams

 

This is not a normal step-by-step how-to guide.  Instead, it is a consolidation of some of my most requested wiring diagrams.  This is in response to repeated requests for copies of wiring diagrams from my YouTube channel.  Many of these diagrams have alternate versions, additional optional components, etc. so I decided to create a single article with most of these diagrams that can easily be referenced.

A New Parking Assistant using ESP8266 and WS2812b LEDs

 

Need a higher tech, but inexpensive solution DIY solution to assist with parking in a consistent location?  This project uses a low-cost ESP8266 and a strip of WS2812b LED pixels to replace that old tennis ball on a string you have hanging from the ceiling now!  And if you have Home Assistant or another automation system, you can optionally enable MQTT to use the system as a vehicle presence system.

An overview of the project can be seen in this YouTube video.

Home Assistant for the masses.... but should it be?

 

So, this post is going to be a little off-script for me.  Consider it an editorial piece.  It's not a 'how-to', but something I've been wanting to get off my chest for a while now.  Where is Home Assistant headed?  What are the strategic goals and who is the target audience?

TM1638 7-Segment Display with ESPHome or MQTT

 

Often, viewers of my YouTube channel or the readers of this blog will let me know if new devices that might improve or add new features to my existing projects.  I've used this information to make upgrades to my stair lighting system and my garage multi-sensor.  But occasionally, they will share a device that I haven't used... but it is so cool, I just make up a reason to use it.  The TM1638 is one of those devices!

DIY Soldering Fume Extractor from a PC Fan

 

In a previous blog post and YouTube video, I repurposed a desktop power supply into a fixed and variable benchtop power source.  In this post I'm going to continue to repurpose components from that same PC, this time taking the CPU fan and creating a soldering station fume extractor with LED lighting.

A New Improved Multi-Sensor

 

One of the first DIY electronic projects I accomplished was building a multi-sensor that contained sensors for motion, temperature and humidity, a light level sensor and an RGB LED indicator.  It was also my introduction to the ESP8266 NodeMCU.  And while this multi-sensor has continued to run successfully for over three years, it does have some limitations.  So, it's time to take some of the new skills and ideas that I've learned and create a new updated version.  You can also watch a YouTube video of this project.

Outdoor LED Installation with Neon Rope Tubing

 

This article will cover an outdoor, IP65-rated LED installation using BTF neon rope tube sleeve and WS2812b LED strips.  Like my other videos and articles, this will be a DIY project.

A Variable Benchtop Power Supply from an old PC

 

Do you have an old PC tucked away in a closet somewhere?  Repurpose the power supply from that old desktop into a modern fixed and variable benchtop DC power supply with little (or even no) soldering and just a handful of parts.

Planning an LED Installation

 

A lot of folks have asked me how I go about planning an LED installation.  Where do I place the controller and power supply?  How do I handle wiring runs?  For this article, I'm going to cover my process for a new installation as I actually do it.

My Smart Home During an 18 Hour Internet Outage

 

Here's what happened to my smart home and all its automations when we recently experienced a complete Internet outage that lasted for 18 long hours!  Yep... we were right in the middle of one of those big red blobs shown above.