WEMOS D1 Mini ESP8266 V4.0.0 with USB Type-C

Overview

The WeMos D1 Mini V4.0.0 is a compact, WiFi-enabled development board based on the powerful ESP8266EX 32-bit microcontroller. It is compatible with Arduino IDE and Lua scripts, features a USB-C connector for improved durability and convenience, and offers 4MB Flash memory with an 80MHz clock speed.

The D1 Mini is the perfect choice for compact IoT projects, automation, or as a lightweight web server platform.

Like earlier versions, it supports the familiar WeMos D1 Mini shield ecosystem, making it easy to expand your project with plug-and-play modules.

Features

• Based on ESP8266EX 32-bit microcontroller

• USB-C connector (replacing the older micro-USB)

• Compatible with Arduino IDE and Lua

• 4MB onboard Flash memory

• 11 GPIO pins (PWM, I2C, SPI, UART), including:

  • 1 UART (RX/TX)

  • 1 analog input (max. 3.2V)

• 3.3V logic level (do not exceed on any I/O)

• Ultra-compact design: only 34.2mm x 25.6mm

• Breadboard-friendly and supports stacking shield

Note 1: This is a 3.3V logic-level device. Do not connect 5V signals to any GPIO pin, including the analog input.

Note 2: The I2C connector is not pin-compatible with Qwiic or STEMMA QT! Please find the pinout in the D1 Mini V4 datasheet.

Looking for more GPIO and processing power? Check out our D1 Mini ESP32 module.