Wemos D1 mini

The Wemos D1 Mini is a small versatile card based on the ESP8266 (ESP-12). It is found for less than €5 direct from china. Very easy to use (programming via USB cable, activation of the automatic Bootload mode …), there are many expansion cards (shields). Relay (250VAC / 10A or 30VDC / 10A), 64×48 pixel OLED display (SSD1306), LiPo battery charger (via micro-USB plug, charging in operation), micro-SD card reader , 7 to 24 VDC power supply, prototyping microplate, double socket, 2 x 15VDC driver, RGB light point based on the WS2812B controller. It is very easy to develop connected objects (IoT) with the Wemos D1 Mini using the Arduino IDE or ESP Easy and integrate them into a home automation software (Jeedom, Domoticz …) or Node-RED .

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BH1750 (GY-302), measure the lighting quality of your home (Arduino / ESP8266 / ESP32)

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 ...

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First project Homie ESP8266: publish in MQTT measurements of a DHT22 probe

Previously, we discovered the Homie library which simplifies the writing of Arduino code to develop connected objects ESP8266 which ...

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Recycle a remote-controlled car (RC car) with an ESP8266, Shield Motor Wemos d1 mini and Blynk

For this new project, I propose to recycle a remote-controlled car by replacing the radio receiver by an ESP8266. The engines will be ...

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#Test: Shield Motor I2C Wemos D1 Mini (or Pro) to drive 2 motors 15Vdc

Today, I propose to discover the Shield Motor I2C for Wemos D1 Mini. This small shield built around the Toshiba TB6612FNG driver allows to ...

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Node-RED + MQTT + ESP8266: how to drive an articulated PTZ system in WiFi

We continue our series of articles on remote control of the actuator and more particularly the PTZ (Pan-Tilt) articulated systems. In the ...

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Cayenne IoT + ESP8266: driving a mini kit Pan-Tilt FPV SG90 in WiFi with a smartphone or tablet

In this new tutorial on Cayenne IoT, we will learn how to control an articulated Pan-Tilt PTZ SG90 system in WiFi. In the previous ...

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Blynk + ESP8266: drive a Pan-Tilt PTZ SG90 in WiFi with a smartphone or tablet

In this tutorial we will learn how to assemble a PTZ mini-kit (Pan-Tilt) based on SG90 servo motor. We will use Blynk to drive the PTZ ...

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Unpacking: shield SHT30 (temperature and humidity) for Wemos D1 Mini

The DHT22 temperature and humidity sensor (and its small brother the DHT11) are ubiquitous in the Arduino / ESP8266 / Raspberry Pi tutorials. You are also ...

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Portable WiFi Scanner with OLED Display (ESP8266): signal strength, connection test to a server

In this project, we will develop a portable WiFi scanner with an OLED display based on an ESP8266 (Wemos D1 mini). It is very easy and very economical to ...

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Driving the ESP8266 GPIO (Web Server) from Jeedom to TCP / IP Wireless – Part 2

Here is the second part of the article to communicate an ESP8266 in TCP/IP with Jeedom. In this tutorial we will see how to drive the GPIO of an ESP8266 from ...

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#Test Shield Battery LiPo for Wemos D1 Mini (voltage measurement and level of charge)

We continue our series of Shields presentation articles (expansion cards) for the ESP8266 Wemos D1 Mini. An essential shield for the ...

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ESP8266 (Web Client): Sending Data to Jeedom in TCP / IP Wireless (JSON API) – Part 1

We continue our series of articles on HTTP (TCP/IP) data exchange between an ESP8266 and the Jeedom Home Automation Server. Jeedom provides an API as complete ...

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