Electronics, ESP8288 and ESP32, Arduino, CNC, Model aircraft and more

If you come looking for the homemade CO2 Meter, you have it here:

About Mariete's Blog:

In this blog you will find useful and fun information about the things that I love, and that, I imagine, you too. My motto is "Not a day without cacharjar" and I try to fulfill it. Maybe not every day I start soldering an electronic project, or programming, but rare is the day that I do not look for information and I dedicate the time to learn, while I think about what can i do next.

Connect a BME280 sensor to ESP Easy

Let's see, step by step, how we can add a temperature, humidity and atmospheric pressure sensor, BME280, to our ...
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CO2 on a giant screen for bars, restaurants, classrooms and the like

Many people are looking for a CO2 meter with a large screen that can be seen at ...
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CO2 meter with ESP8266 (NodeMCU) and Senseair S8 sensor

Let's see how to mount the CO2 meter with a sensor. This is going to be a very ...
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Power from NodeMCU, Wemos Mini D1 and Arduino

On many occasions, in our projects, we power our microcontroller through a USB cable connected to a mobile charger or ...
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MH-Z19B FALSE CO2 Sensors

We are seeing, in recent times, an increasing number of MH-Z19B sensors more false than a coin ...
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3D printed box for CO2 meter

Many blog readers have requested a 3D printed box for the CO2 meter ...
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Connect and control WS2812B LEDs to ESP8266 with ESPEasy

Do you want to connect WS2812 LEDs to an ESP8266 with ESP Easy? In this tutorial I'm going to show you how to do it easily ...
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Using a buzzer with ESPEasy

Sometimes we need our ESPEasy-based project to generate sound warnings, for warnings, alarms, confirmation of certain actions, or ...
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The MH-Z19B CO2 Sensor Bible

The MH-Z19B CO2 sensor is fantastic. A cheap CO2 sensor, accurate (for the price it has) and very ...
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Connect an SSD1306 OLED screen to ESPEasy

Let's see, step by step, how we can add a screen to our project with NodeMCUo Wemos D1 Mini and ...
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Projects with ESP8266, ESP32 and Arduino boards

From how to get started with download the Arduino IDE and its installation, going by how to program an arduino, until pinout (what is each pin or "leg" for).

You will find articles about the differences between an Arduino Uno and an Arduino Nano and when to use each board or tutorials on how to write Arduino programs, called Sketches. Of course everything in Spanish (although there is an automatic translation into English).

I write articles periodically, so it is very important that you subscribe to receive the news. Do it now, before you forget it!

RC Model Aircraft (Radio Control)

I love the radio controlled model aircraft. I've been practicing it for more years than you would think and I've flown planes, drones and helicopters, both electric and Glow or gasoline (that is, explosion engine). I love the FPV, especially if it is Long range, or Great Reach, and, above all, the gadget.

Do not stop subscribing in the form on the right, because I have material to write a lot of very interesting articles and I plan to write them little by little.

3d printers

I am a big fan of 3D printers. It seems to me an incredible technology and a transversal hobby because it helps me in the rest of my hobbies.

I started in 2014, with a PS3 Steel that I built asking for parts from half the world, I still have this printer, and for a couple of years I have a Creality CR-10S and the truth is that I am delighted with it, although I have made quite a few modifications. I have to say that for some things I still use the PS3 Steel because I have it "very fine" and it gives me better quality (depending on what things, as I say).

The first thing I did was install a 750 watt silicone heated bed at 220V, the following add auto leveling of the heated bed with BL Touch, then replace the controller with one of 32 bit. I will be writing articles about these things because I took photos of many of them and even recorded a video.

Homemade CNC Machine (Numerical Control Milling Machine)

3D printers gave me a lot of satisfaction and whetted my appetite to build more things, and it was inevitable ... the following was build a homemade CNC milling machine with Arduino (also called control milling machine numeric). Don't miss the articles I have written about it (and continue to write) because it is an incredible machine for working with wood, aluminum, plastics, making printed circuit boards and much more.

Laser engraving machines

And, yes, once again one thing led to another. I started by add a diode laser to the CNC milling machine but right away I built one CNC Laser dedicated with aluminum profiles and shortly after I bought a laser engraver CO2 really, it has allowed me to do a lot of things. Of course I have done so many modifications to the CO2 laser engraver it already looks little like the one I bought.


There are many other things in the world of electronics that I do, from designs, modifications, repairs, radio frequency, etc.. I'll be writing about it.

Where do I begin?

As you see i have many pending things to write about and I have to prioritize. I need help deciding what to write first. Share my Facebook page by clicking on the icon below and then tell me on my facebook page What do you want me to write. 

Above all, do not forget to subscribe, just below, so you do not miss anything.Do it now, do not forget!