Home Automation

Driving LCD with Arduino and Raspberry Pi

One of the ideas in my head involves a cup of jellybeans and an LCD display. Since I know how to operate the cup...
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ESP32 & 410 LEDs: Experiments 1 – Matrix

I have made this awesome 410 RGB LEDs matrix. It's fun and serves the educational purposes for now. Soon enough, the ESP32 & 410...

Join is coming to NodeRED

I just got my hands on the preview build of Join nodes. Yes, Join is coming to NodeRED! I'm pleased to break the news, especially...
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How to drive RGB LEDs with ESP32 & ESP8266

I'm starring at 410 individually addressable LEDs (WS2812b). They all blink in rainbow fashion driven by a test FastLED library. I have to say the...
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ESP8266 DIY Smart Socket – SOFTWARE (3/3)

It took me longer than I assumed it would, mainly due to software issues, but once I modified the software to my needs, it...

ESP8266 DIY Smart Socket – HARDWARE (2/3)

I had very little use for a yet another charger in my household. I reviewed it on my website, and I think I reached...

Google Home Notifications Tutorial

Each time I say "Hey Google" I feel slightly awkward, less if no one is around, as using voice commands in public is as...

Google Home Notifications

The fight between Google Home and Amazon Alexa is far from over. The last round was won by the Echo Dot and Routines. It...

DIY Smart Socket with ESP8266 and AUKEY charger (1/3)

I suspected that AUKEY PA-S11 charger had some empty space inside its enclosure. I hate wasting space and I had few ESP8266 laying around....
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$20 Automated Staircase RGB LED Lighting: SOFTWARE #part3

Before we dive in into the software, if you want to read about prices, design and hardware use links below. The staircase RGB LED...

NodeRED for beginners

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NodeRED for beginners: 6. Function node

The Function Node is one of the most useful nodes in NodeRED. It's a javascript editor which doesn't do much unless you tell it...
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NodeRED for beginners: 5. Connectivity

I explained how to process the data in the last tutorial, its time to learn how to send the data to NodeRED and how...
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NodeRED for beginners: 4. Data Processing

If you made your first flow already, you know that data is passed between each node. If you want to see this in a simplified example,...
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NodeRED for beginners: 3. Your First Flow

We talked about why you should get NodeRED in the first place, and how to get started with NodeRED, now it's time for your...
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NodeRED for beginners: 2. NodeRED Getting started

You have made the right choice! Investing in the NodeRED server will pay off soon! If you, however, are still not sure why would...