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ESP8266/ESP32

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Marvelous notifications – Putting ESP8266 Jarvis into toy Ironman

I was looking at my shelf the other day and I noticed an Ironman figurine given to me by a friend. Initially, I was...
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Using Sonoff Tasmota software

Encouraged by the latest ESP hacks and your comments, I decided to take a look at the Sonoff Tasmota software too. I love to learn...
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Hacking ESP8285 GeekCreit 4 Way relay controller

What an adventure it was. For the first time, I started the livestream not knowing whats ahead. Determined and armed with Google, I started...

Programming ESP32 on Arduino IDE just got easier

The ESP8266 may not be the newest on the block but has an excellent support and a super easy installation guide if you want...
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Is it worth hacking Sonoff basic?

Thanks to Banggood I own two Sonoff basic devices. While the original and intended use is waiting for the local Hackspace to reopen, I...

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...

NodeRED for beginners

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NodeRED for beginners: 7. Tips & Tricks

That's the last post of this series with a couple of tips and tricks you might find handy while building your own flows. These...
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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...