WeMos D1 Mini NodeMCU ESP8266 Development Board with CH340 and Type-C

WeMos D1 Mini NodeMCU ESP8266 Development Board with CH340 and Type-C
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  • Product Code:SQ3326
  • Availability: 1000
  • $1.65
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Tags: WeMos D1 Mini, ESP8266 development board, NodeMCU, CH340, Type-C ESP8266, Arduino WiFi board, IoT development board, 4MB flash ESP8266, D1 Mini shield, ESP-8266EX

The D1-Mini-NodeMcu is a compact ESP8266-based development board designed for Internet of Things (IoT) projects, home automation, and Arduino-compatible wireless applications. Built around the ESP-8266EX microcontroller, this board integrates 2.4GHz Wi-Fi with a CH340 USB-to-serial converter, allowing direct programming and serial communication through a Type-C USB connection. The board operates with 3.3V logic levels and provides 11 digital input/output pins along with one analog input that accepts up to 3.2V, supporting interrupt, PWM, I2C, and one-wire functions on most pins.

The ESP8266EX core runs at a clock speed of 80MHz or 160MHz and includes 4MB of SPI flash memory for firmware and data storage. The board is compatible with the Arduino IDE, MicroPython, and NodeMCU frameworks, making it accessible to a wide range of developers and makers. Its compact dimensions of approximately 25mm × 34mm allow it to fit into space-constrained enclosures while still providing access to the full pin set.

A key advantage of the WeMos D1 Mini ESP8266 form factor is its ecosystem of stackable shields. A growing range of expansion boards—including relay, button, sensor, microSD, and motor shields—can be mounted directly on top of the board, enabling rapid prototyping without additional wiring. Typical applications include wireless sensor nodes, smart home controllers, data loggers, and IoT gateways. The board is powered via its USB connection or an external 3.3V supply, and its low power consumption makes it suitable for portable and battery-conscious designs.

WeMos D1 Mini ESP8266 Application

  1. Internet of Things (IoT) sensor nodes and gateways
  2. Home automation and smart device control
  3. Wireless data logging and telemetry
  4. Arduino and MicroPython prototyping projects
  5. Stackable shield-based rapid development
  6. Remote monitoring and cloud-connected devices
  7. Educational electronics and IoT learning platforms
  8. Battery-powered or portable Wi-Fi projects

WeMos D1 Mini ESP8266 Specifications

  1. Product Model: D1-Mini-NodeMcu
  2. Core Microcontroller: ESP-8266EX
  3. Clock Speed: 80 MHz / 160 MHz
  4. Operating Voltage (Logic): 3.3V DC
  5. USB Power Input: 5V DC via Type-C
  6. USB-to-Serial Converter: CH340
  7. Digital I/O Pins: 11
  8. Analog Input Pins: 1 (max 3.2V input)
  9. Digital I/O Features: Interrupt, PWM, I2C, one-wire supported (except D0)
  10. Flash Memory: 4 MB
  11. Wi-Fi Standard: IEEE 802.11 b/g/n (2.4 GHz)
  12. Wi-Fi Modes: STA / AP / STA+AP
  13. Security: WEP / TKIP / AES / WPA / WPA2
  14. Programming Compatibility: Arduino IDE, MicroPython, NodeMCU
  15. Shield Compatibility: WeMos D1 Mini shields (stackable)
  16. Typical Current Consumption: 70–80 mA (Wi-Fi enabled)
  17. Peak Current: Up to 300 mA (transmit/startup)
  18. Board Dimensions: 25 mm × 34 mm (per Aftab Rayaneh) / 34.2 × 25.6 mm (official)
  19. Weight: 3 g (official) / 10 g (some listings)

Features

  1. ESP-8266EX microcontroller with integrated 2.4GHz Wi-Fi (802.11 b/g/n)
  2. CH340 USB-to-serial converter for programming and serial debugging
  3. Type-C USB connector for power and data
  4. 11 digital I/O pins with interrupt, PWM, I2C, and one-wire support (except D0)
  5. One analog input with a maximum input of 3.2V
  6. 4MB SPI flash memory for firmware and data storage
  7. Clock speed selectable between 80MHz and 160MHz
  8. 3.3V logic level operation with 5V USB supply
  9. Compatible with Arduino IDE, MicroPython, and NodeMCU
  10. Stackable shield ecosystem for rapid expansion (relay, sensor, microSD, motor, etc.)
  11. Compact dimensions of approximately 25mm × 34mm
  12. Low power consumption: 70–80mA typical, 300mA peak
  13. Supports STA, AP, and STA+AP Wi-Fi operating modes
  14. Security support for WEP, TKIP, AES, WPA, and WPA2
Electrical Parameters
Operating Voltage DC 3.3V
Board Parameters
FLASH 4M bytes
Physical Parameters
Size 34.2mm x 25.6 mm

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