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ESP8266/ESP32

Everything you need to start using JSON

Before you read any further, this is a guide that aims to ease you into the JSON data structure. It's written for the purpose...
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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...
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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...

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....

Hacking ESP8266 smart plug – serial adaper

I was excited to see the dev pads on the Oittm ESP8266 Smart plug.  I finally found some time to open this up and...

A hackable ESP8266 inside a smart plug

I had a chance to review an Oittm Smart WiFi Plug recently. I also tried to see if I can use Tasker with it,...

ESP32 – getting started on Windows

My previous ESP boards (8266) are great but it comes with one limitation - the number of usable pins. It was time to upgrade!...

Flashing ESP8266 with NodeMCU (Windows, Linux, Arduino and Raspberry Pi)

Each time when I'm unable to find a coherent guide on a single page within three pages of Google search, I'm creating an article...

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...