ESPEasy and deep sleep mode (ESP8266 low power)
Learn to reduce consumption by mastering ESPEasy's deep sleep mode
Arduino projects
In this section you can find articles related to Arduino, ESP8266, NodeMCU, etc.
Experiments with ESP Easy (ESP8266) and low consumption - v1.0
Do you want to reduce the consumption of your project with ESPEasy and an ESP8266 easily to be able to use it with batteries for months? Keep reading. In this series of articles, of which this is the first, I will tell you about the progress that I am making and how you can also make and apply them in your ... Read more
Using a ModeMCU as a voltmeter
Measure volts with an ESP8266 Don't have a multimeter? No problem! Did you know that you can use your NodeMCU (or any ESP8266) as if it were a voltmeter? Sometimes a voltmeter is almost essential to be able to solve any problem that arises when we work with microcontrollers, or with any electronic circuit in general. In this article we will ... Read more
CO₂ meter with MQ-135 sensor (Don't miss it, it's not what it seems)
In this article I am going to tell you what you have to do to mount a CO2 meter with an MQ-135 (sic) sensor. An easy and cheap tutorial (it's free). I hope that, if you are reading this article, it is because you have thought about building an easy and cheap meter with an MQ-135 sensor and… Read more
Battery powered CO₂ meter (well done)
In this tutorial I am going to teach you how to add a battery to any your microcontroller-based project, correctly, without danger. The uses are endless and, although I am going to use the Homemade CO2 Meter as an example, you can use it in any other project, be it based on Arduino, ESP8266, ESP32, or any other microcontroller. Do not … Read more
Color touch screen for CO medidor meter Wow!
There's no question, things come in through the eyes and a color touch screen for our home CO2 meter takes the project to another level. Who can resist a nice, full-color touchscreen that's more than fair size? We already have a quality CO₂ meter, with a ... Read more
Gallery: User CO₂ Meters
There are many users, of all levels, who have built the eMariete CO2 Meter. Some have created a simple and provisional assembly, on the air, with no other claim than to obtain reliable CO₂ measurements in a cheap and simple way, others have created more "definitive" versions, some very original and ... Read more
Active or passive buzzer for Arduino, ESP8266, NodeMCU, ESP32, etc
Everything you need to know to connect a buzzer to a NodeMCU, ESP8266 or Arduino
Connect a BME280 sensor to ESP Easy
Using a screen with ESPEasy is very easy. Here the step by step instructions with video