WeMos ESP8266 D1 R2 V2.1.0 WiFi Development Board

(1 customer review)

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Approx Restocking Date: 25 to 30 Days
SKU: 299675
  1. Microcontroller: ESP8266EX
  2. Operating Voltage: 3.3V
  3. Digital I/O Pins: 11 (all I/O pins have interrupt/PWM/I2C/one-wire capability, except for D0)
  4. Analog Input Pins: 1
  5. Flash Memory: 4MB
  6. On-Board Switching Power Supply:
    • Input Voltage Range: 9V to 12V
    • Output: 5V at 1A Max


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Brand: WeMos
Category: Other ESP WIFI Modules
Tags: Arduino, Uno, ESP8266, Wifi, Wireless, Home IOT, IoT, WeMos, ESP8266 series

This is WeMos ESP8266 D1 R2 V2.1.0 WiFi Development Board. The WeMos D1 is an ESP8266 WiFi based board that uses the Arduino layout with an operating voltage of 3.3V.

the board is controlled by the ESP8266 chip (a 32-Bit processor) and has a larger flash memory compared to an Arduino Uno. It consists of 11 digital I/O pins and 1 analog (input) pin. the board can be connected using a Micro-B type USB cable.

The D1 R2 is a WiFi capable ESP8266EX based development board in the form of the Arduino UNO board format. This board is compatible with the Arduino IDE and with NodeMCU.

The D1 R2 also features an onboard switching power supply which allows you to power the board from a power supply up to 12V.

Features :

  1. Based on the ESP-8266EX.
  2. Arduino Compatible, you can use it on Arduino IDE.
  3. NodeMcu Compatible

Package Includes :

1 x WeMos ESP8266 D1 R2 V2.1.0 WiFi Development Board

For more information read the following article,

Getting started with the WeMos D1 ESP8266 WiFi Board

Programming the ESP8266 WeMos-D1R2 Using Arduino Software/IDE

Digital I/O Pins


Operating Voltage (VDC)


Analog I/O Pins


Flash Memory

4 MB

Dimensions (LxWxH) mm


Weight (g):


Shipping Weight 0.022 kg
Shipping Dimensions 6 × 6 × 2 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 1 review

5.0 overall

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  1. sanjay upadhyay (verified owner)

    This is as per description. Good packing. Excellent .Thx

    sanjay upadhyay

ESP8266EX Datashee

ESP8266 Technical Reference

ESP8266 AT Command Examples

ESP8266 AT Instruction Set

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Country Of Origin: China