WeMos D1 mini Pro ESP8266 (V4.0)

WeMos D1 mini is a miniature wireless 802.11 (Wifi) microcontroller development board. It turns the very popular ESP8266 wireless microcontroller into a fully-fledged development board.


52 in stock

Add to Wishlist
WeMos D1 mini Pro ESP8266 (V4.0)
This item: WeMos D1 mini Pro ESP8266 (V4.0)

52 in stock

Nano USB C V3.0 ATmega328P
Mega2560 Pro Mini ATmega2560-16AU USB CH340G
Arduino UNO R3 ATmega328P CH340G type B USB
1 × Nano Every Atmega4808

Out of stock

Qty Discount
2 - 4 5%
5 - 9 6.5%
10 + 8%
SKU: TS-P693
Additional information
Support & Utility
Q & A

WeMos D1 mini Pro ESP8266 (V4.0) is a compact and powerful development board based on the ESP8266 WiFi chip. It features a 32-bit processor, 11 digital input/output pins, and a USB-C port for easy programming.

With its small size and low power consumption, the D1 mini V4 is perfect for IoT projects, home automation, and other applications where space and energy efficiency are essential.

It also has built-in support for the Arduino IDE, making it easy for beginners and experienced developers to program and interface with the board. With its versatility and ease of use, the WeMos D1 mini V4 is an excellent choice for anyone looking to build their next project.

The strength of this module lies in its stackable design and various modules with sensors and actuators. This module and most shields come with 2 x male headers, 2 x short female headers and 2 x long female headers


  • Microcontroller: ESP-8266EX
  • 11 digital input/output pins, all pins have interrupt/PWM/I2C/one-wire supported (except D0)
  • Clock Speed: 80/160MHz
  • One analogue input (3.2V max input)
  • USB Type C connection
  • Compatible with Arduino, nodemcu, MicroPython
  • 4MB Flash
  • Compatible with MicroPython, Arduino, nodemcu

Pin Function ESP-8266:

  • TX: TXD
  • RX: RXD
  • A0: Analog input, max 3.3V input A0
  • D0: IO GPIO16
  • D1: IO, SCL GPIO5
  • D2: IO, SDA GPIO4
  • D3: IO, 10k Pull-up GPIO0
  • D4: IO, 10k Pull-up, BUILTIN_LED GPIO2
  • D5: IO, SCK GPIO14
  • D6: IO, MISO GPIO12
  • D7: IO, MOSI GPIO13
  • D8: IO, 10k Pull-down, SS GPIO15
  • G: Ground, GND
  • 5V: 5V
  • 3V3: 3.3V
  • RST: Reset, RST

Note:  USB Type C connector can change Without notice 

Package Included: 1x WeMos  D1 mini Pro ESP8266 (V4.0), 2 x Normal pin, Short female pin, 2 x Long female pin.

Development  Resources: demo codes, schematics, datasheets, etc

     Hackaday serves up Fresh Hacks Every Day from around the Internet.

Instructables is a community for people who like to make things. Explore, share, and do your next project with us!


     Where the world builds software

    Raspberry Pi Foundation What would you like to make today?

    Arduino‘s mission is to enable anyone to enhance their lives through accessible electronics and digital technologies.

Wikipedia is a free online encyclopedia created and edited by volunteers worldwide and hosted by the Wikimedia Foundation.



1. There may be slight size deviations due to manual measurement, different measuring methods and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angles and display monitors.


Weight 0.010 kg
Dimensions 3 × 4 × .5 cm

Product Applications

Q & A

There are no questions yet

Ask a question

Your question will be answered by a store representative or other customers.

Thank you for the question!

Your question has been received and will be answered soon. Please do not submit the same question again.



An error occurred when saving your question. Please report it to the website administrator. Additional information:

Add an answer

Thank you for the answer!

Your answer has been received and will be published soon. Please do not submit the same answer again.



An error occurred when saving your answer. Please report it to the website administrator. Additional information: