3 weeks ago
Arduino, Beginner, Difficulty level, Tutorial, Wemos D1 mini
207
The GY-302 from CJMCU is an I2C board that allows you to measure the amount of light using the BH1750 photodetector. We will use the measured brightness to construct an ambient lighting quality indicator based on European Standard EN 12464-1. It is very easy to integrate the sensor GY-302 in …
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4 weeks ago
Advanced, Difficulty level, ESP32, ESP8266, IoT - Connected Objects, PlatformIO IDE
452
Today we will see how to program Espressif ESP32 microcontrollers with the PlatformIO IDE (PIO). If you discover PlatformIO, you can start by reading this first article that explains step by step how to install and start. Support for new ESP32 boards by the Arduino IDE requires installation and configuration …
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5 July 2017
Advanced, Difficulty level, Homie library, Wemos D1 mini
466
Previously, we discovered the Homie library which simplifies the writing of Arduino code to develop connected objects ESP8266 which communicate by MQTT messages. In this article we will discuss in more detail how to use the library in an Arduino program. The library offers a very large number of functions …
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26 June 2017
Advanced, Difficulty level, ESP8266, Web Client, Web Server (Interface)
716
The WiFiManager library allows you to easily manage the Wi-Fi connection in your ESP8266 projects. The WiFi connection is very well supported by many libraries, for example Blynk, Cayenne, Homie, ESP Easy. For more simple projects or outside the framework of these libraries, you must manage the connection to the …
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16 June 2017
Beginner, Difficulty level, ESP32, ESP8266
878
The Espressif Development Kit for ESP32 boards is available on GitHub for macOS, Windows, 32-bit Linux, 64-bit and ARM chips (Raspberry Pi, Orange Pi, etc …). It is still under development but can be installed to program ESP32-based development boards directly from the Arduino IDE. In this tutorial, we will …
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13 June 2017
ESP32, ESP8266
638
After the success of the Wi-Fi ESP8266 modules, Espressif has not stopped in such a good way and today offers us its successor the ESP32. The first development cards based on the SoC ESP-WROOM-32 very often exceeded €15. Since the beginning of 2017, prices have fallen sharply. It is no …
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5 June 2017
Advanced, Blynk, Difficulty level, DIY Projects, Wemos D1 mini
500
For this new project, I propose to recycle a remote-controlled car by replacing the radio receiver by an ESP8266. The engines will be controlled using a shield Motor for Wemos d1 mini presented in this article. You definitely have an old remote-controlled car that hangs at home. The remote control …
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5 June 2017
Beginner, Difficulty level, ESP8266, Wemos D1 mini
360
Today, I propose to discover the Shield Motor I2C for Wemos D1 Mini. This small shield built around the Toshiba TB6612FNG driver allows to control 2 DC motors. The board is capable of independently controlling the speed and direction of each motor (A, B). The maximum permissible power is 1.2A …
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23 May 2017
Advanced, Difficulty level, ESP EASY, ESP8266
1,840
Today I present a tutorial that was proposed to me by Bernard, a reader of DIY Projects. In this tutorial, Bernard explains how he hacked the ESP8266 from a connected SONOFF S20 plug. SONOFF specializes in the manufacture of power supply (Wi-Fi controlled plug, power supply …), relay card, etc. …
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15 May 2017
Advanced, Difficulty level, IoT - Connected Objects, MQTT, Node-RED, Wemos D1 mini
957
We continue our series of articles on remote control of the actuator and more particularly the PTZ (Pan-Tilt) articulated systems. In the previous tutorials we saw how to drive a servo from a smartphone using the libraries for IoT Cayenne and Blynk. Today we will learn how to do it …
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DIY Projects Home automation, connected objects (IoT) and DIY projects based on Arduino, ESP8266, ESP32, mini PC (Raspberry Pi, Orange Pi) and 3D printing
