NodeMCU

Projects made with the NodeMCU

PID controlled Boost Converter with ESP32: a comprehensive design and implementation guide

Introduction The PID controlled Boost Converter with ESP32, presented in this article, represents an efficient and versatile solution for managing voltage variations in the power supply of electronic systems, allowing you to increase the input voltage to a desired level, while keeping the system stable and precise thanks to PID control (Proportional, Integral, Derivative). In […]

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Environmental monitoring with Modbus protocol, Raspberry Pi and ESP32: essential guide with REST API

Introduction This project, focusing on the Modbus protocol, represents a perfect example of how modern technology can be used to create an efficient and scalable environmental monitoring system, using inexpensive and widely available components such as the Raspberry Pi and the ESP32. The heart of the system is a Raspberry Pi equipped with a DHT22

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Build an effective mesh network with ESP32 and visualize data on Node-RED

Introduction The project we are going to carry out focuses on the creation of a mesh network using ESP32 modules, with the aim of monitoring environmental parameters such as temperature and humidity, sending the collected data to an MQTT broker and viewing it in real time on a Node-RED dashboard . This system uses different

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File management on ESP32: SPIFFS and LittleFS compared

Introduction In this article we will cover file management on ESP32. In computing, file systems are essential for organizing and managing data stored on storage devices. A file system is a structure that allows files to be stored and retrieved in an orderly manner, allowing the operating system to manage data efficiently. There are several

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Signal generator with ESP32 and AD9833 DDS module

Introduction Signal generator with ESP32 and AD9833 DDS module. In our previous project described by article Guide to creating a simple signal generator with ESP32, we built a simple signal generator using an ESP32, capable of generating sine, square and triangle waves. This project demonstrated how the ESP32 can be used to create variable signals

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Practical guide to ESP32 communication protocols

Introduction ESP32 and communication protocols. The ESP32 is a versatile and powerful microcontroller that has revolutionized the world of the Internet of Things (IoT) thanks to its advanced communication capabilities and its wide range of integrated features. One of the features that makes the ESP32 so popular among hobbyists, makers, and electronics engineers is its

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Guide to creating a simple signal generator with ESP32

Introduction Signal generator with ESP32. A signal generator is a fundamental instrument in electronics, used to produce waveforms of various frequencies and amplitudes. These devices are crucial for the testing, calibration and development of electronic circuits and systems. They can generate different types of waves, each with specific practical applications. It produces electronic signals with

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Digital frequency meter with ESP32 and TFT display: an economical and essential solution for the electronics laboratory

Introduction The digital frequency meter with ESP32 is a simple but very useful tool in every electronics laboratory. In the world of electronics and circuit design, the need to accurately measure the frequencies of digital signals is critical. However, professional measurement tools, such as digital frequency meters, can be expensive and out of reach for

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Square wave generator with ESP32: an economical solution for circuit testing

Introduction In the world of electronics, a square wave generator or more generally a signal generator is an essential tool for testing and diagnosing circuits. A device of this kind allows you to inject a known signal into a circuit to observe how it responds, making it easier to identify any problems or anomalous behavior.

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WiFi panoramic camera: remote monitoring and control via web

Introduction WiFi panoramic camera: remote control your vision. Have you ever wanted to have complete control of your surveillance camera, being able to rotate the lens to explore every corner of your space? Thanks to the power of technology and your creativity, it is now possible. Welcome to the world of the motorized camera, a

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