How to make an automatic sprinkler controlled by Telegram with the ESP8266 NodeMCU

Today, information technology and electronics pervade almost every aspect of our lives. There are automatic electronic systems that have many different functions, sometimes they are a little invasive but they are often very useful and help us in our daily activities. One of the fields where certain devices are extremely suitable is gardening, in particular […]

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How to create a project for NodeMCU ESP8266 with PlatformIO

Creating the project using PlatformIO Today we want to see how to create a new project for the NodeMCU ESP8266 board using the PlatformIO IDE and how to add external libraries to the project. Please note that the operating system I use is a Linux distribution (specifically Fedora 36). So the folder structure in the

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How to make a bluetooth datalogger for temperature and humidity using Arduino MEGA.

What is a data logger for? A data logger is an electronic device which acquires physical parameters (for example temperature, humidity, atmospheric pressure, pollutants, etc.) in precise time intervals and saves them on a permanent memory device (such as an SD card) or transmits them to a cloud platform to be processed and displayed.

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Ultrasonic distance meter with LCD display on Arduino UNO

Introduction In this tutorial we will see how to make an ultrasonic distance meter. Ultrasounds are acoustic waves having a frequency higher than that audible by humans. The medium crossed by the ultrasounds conditions its propagation speed. They are slower in gaseous media and faster in solid media. In air the speed of propagation is

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