Wemos D1 Mini ESP8266 WiFi Development Board with Headers

The Wemos D1 Mini is an ultra-compact WiFi development board based on the ESP8266 chip, making it one of the most popular choices for IoT and wireless projects. It comes with male and female header pins included, and features a Micro USB port for easy programming via Arduino IDE or MicroPython.

Key Features:

• ESP8266 WiFi SoC — 802.11 b/g/n, 2.4GHz
• CH340 USB-to-Serial chip (Micro USB programming)
• 11 digital I/O pins, 1 analog input (A0)
• Supports I2C, SPI, UART, PWM
• 3.3V operating voltage with onboard 3.3V regulator
• Compatible with Arduino IDE, MicroPython, and NodeMCU firmware
• Includes male + female header pins
• Compact form factor: 34.2mm x 25.6mm
• FCC certified ESP8266 module (ESP-12S)

Specifications:

• MCU: ESP8266 (Tensilica L106 32-bit, 80/160MHz)
• Flash: 4MB
• WiFi: 802.11 b/g/n (2.4GHz)
• USB: Micro USB (CH340 USB-to-Serial)
• Operating Voltage: 3.3V
• Input Voltage: 5V via USB
• Digital I/O: 11 pins
• Analog Input: 1 (3.3V max)
• Dimensions: 34.2mm x 25.6mm

Whether you're building a smart home sensor, a web server, or an MQTT client — the Wemos D1 Mini packs full WiFi capability into a tiny, breadboard-friendly package.