Wemos D1 Mini NodeMCU WiFi ESP8266 - IoT Development Board

Name: Wemos D1 Mini NodeMCU WiFi ESP8266 - IoT Development Board
Brand: satkit
SKU: G000101-wemos-mini-d1
Price: 5.42 EUR
Availability: InStock

Brand: satkit

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The Wemos D1 Mini Nodemcu Wifi Esp8266 is a compact development board that combines a powerful ARM microcontroller with WiFi connectivity, designed for Internet of Things (IoT) projects and compatible with Arduino. Based on the ESP12E module with 4MB of flash memory, this board is a miniature version of the standard NodeMCU module, offering the same functionality in a reduced format.

This board is fully compatible with NodeMCU and the Lua script, although its full potential is realised when used with the Arduino platform and the ESP8266 package, making it an ideal choice for developers and electronics enthusiasts looking to create connected devices simply and efficiently.

Key features:

ESP8266EX microcontroller with 4MB of flash memory (ESP12E).
Operating frequency of 160 MHz, higher than the typical 8/16 MHz.
Compatible with most Arduino libraries and examples, making development easier.
CH340 chipset for UART communication and auto-reset system for automatic upload.
Powered via micro USB, with 3.3V and 5V inputs.
11 available pins with interrupt (IRQ), PWM, I2C and 1-wire functions (except D0).
Includes male and female connectors, with double-length female headers for greater flexibility.
Compact dimensions of 34,2 x 25,6 mm, ideal for projects with space constraints.

Typical uses:

Development of IoT devices connected to WiFi networks.
Automation prototypes and remote control with Arduino.
Educational projects and experimentation with microcontrollers and wireless connectivity.
Integration into sensor systems and measurement equipment with wireless communication.

To install the Arduino ESP8266 package, it is recommended to consult the manual and access the Arduino Boards Manager via the link https://arduino.esp8266.com/stable/package_esp8266com_index.json. For working with NodeMCU, specific resources are available.

The Wemos D1 Mini is one of the best-known basic boards for ESP8266 development, offering an easy-to-use platform with plenty of examples and community support. Its compatibility with Arduino makes it easy for developers looking to add WiFi connectivity to their projects without complications.

ESP8266EX microcontroller with 4MB flash (ESP12E)
160 MHz frequency for high performance
Compatible with NodeMCU, Lua and the Arduino platform
CH340 chipset for UART communication and auto-reset
Powered by micro USB, 3.3V and 5V
11 pins with IRQ, PWM, I2C and 1-wire (except D0)
Includes male and female connectors, double-length female headers
Compact dimensions: 34,2 x 25,6 mm

Customer Questions & Answers

What are the key differences between the Wemos D1 Mini and a standard NodeMCU when developing IoT projects?

The Wemos D1 Mini has a more compact form factor (34.2 mm x 25.6 mm), but it uses the same ESP8266 microcontroller (ESP-12E) and is compatible with the same development environments (Arduino IDE, Lua). Its smaller size makes it suitable for space-limited projects, although it sacrifices some available pins compared with the standard NodeMCU, which is larger and often makes connections easier for bigger prototypes. The choice mainly depends on space requirements and the number of peripherals to connect.

What communication interfaces does it offer and what are the technical limitations?

The Wemos D1 Mini offers UART, I2C, SPI and PWM, accessible from the header pins (D0-D8, RX, TX). The maximum stable UART speed is 115200 bps. I2C can run at 400 kHz, and SPI has a theoretical maximum of 80 MHz, although 40 MHz is more stable in practice. All pins have a recommended maximum current of 12 mA per pin and this should not be exceeded to avoid damage.

What is included in the box and what are its approximate dimensions and weight?

Generally, the box includes the Wemos D1 Mini board and the solder headers (sometimes already soldered, depending on the supplier). The dimensions are approximately 34.2 mm x 25.6 mm x 7 mm (height) and the weight is about 3 g. The exact contents can be checked at the time of purchase, as some kits include extra accessories such as cables.

Do I need to install special drivers to use the USB port and which operating systems are compatible?

The Wemos D1 Mini uses a CH340 USB-UART converter. Windows generally requires the official CH340 driver to be installed, while on recent Linux and macOS versions it usually works without any additional steps. Drivers are available for Windows (XP or later), macOS and most modern Linux distributions.

Is the Wemos D1 Mini compatible with the Arduino platform?

Yes, the Wemos D1 Mini is fully compatible with the Arduino platform using the ESP8266 package, which makes it easier to program and use in IoT projects.

What type of WiFi connection does this board have?

The Wemos D1 Mini uses the ESP8266 module, which includes built-in WiFi connectivity for wireless communication in IoT projects.

What power supply voltages does the Wemos D1 Mini support?

It supports power via micro USB, with 3.3V and 5V inputs, adapting to different power sources.

How many input/output pins does the board have?

The board has 11 available pins, all with interrupt (IRQ), PWM, I2C and 1-wire functions, except for pin D0.

Does it include connectors to make component connection easier?

Yes, it includes male and female connectors, including double-length female headers for greater flexibility in connections.