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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Control of an SG90 servomotor with ESP32 and touchscreen display

Introduction The project “Control of an SG90 servomotor with ESP32 and touchscreen display” combines the potential of the ESP32, a versatile and powerful microcontroller, with the versatility of an interactive touchscreen display, to create a sophisticated and efficient control system. The SG90 servo, with its wide range of motion and precision, is an ideal choice

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LCD TFT display for monitoring temperature and humidity with DHT22

Introduction Welcome to this hands-on exploration of the world of LCD TFT displays and environmental monitoring with the ESP32. In this article, we will dive into the universe of TFT displays, exploring their features, libraries and the potential offered, while delving into the implementation of a real-time environmental monitoring system. Starting from the basics, we

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Dimmable LED and environmental measurements: we interface the Arduino Nano ESP32 to the Arduino Cloud

Introduction Dimmable LED and environmental measurements with Arduino Nano ESP32 connected in the Cloud. After getting the basics in our previous article Independent control of two LEDs with Arduino Nano ESP32: a practical introduction, it’s time to do something more complex. In this second article on the Arduino Nano ESP32, you will be guided through

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RFID gate access control system. Advanced integration with Raspberry Pi and Telegram

Introduction RFID gate access control system: an advanced system for access and permission management supported by the power of the Raspberry Pi. This integrated solution is designed to offer efficient and flexible access control, using RFID technology to ensure secure and rapid identification of users. At the heart of this ecosystem lies a SQLite3 database,

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