Wemos D1 R2 WIFI ESP8266 ARDUINO SHIELD

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Description

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:

  • Based on ESP-8266EX
  • Arduino compatible, using IDE Arduino to program
  • 11 x I/O pins
  • 1 x ADC pin (input range 0-3.3V)
  • Support OTA wireless upload
  • Onboard 5V 1A Switching Power Supply (highest input voltage 24V
Microcontroller ESP8266
Digital I/O Pins 11
Operating Voltage(VDC) 3.3
Analog I/O Pins 1
Flash Memory 4 MB
Dimensions in mm (LxWxH) 68x54x12
Weight (gm) 20

 

Pin

Function

ESP-8266 Pin

TX

TXD

TXD

RX

RXD

RXD

A0

Analog input, max 3.3V input

A0

D0

IO

GPIO16

D1

IO, SCL

GPIO5

D2

IO, SDA

GPIO4

D3

IO,Pull-up

GPIO0

D4

IO,pull-up, BUILTIN_LED

GPIO2

D5

IO, SCK

GPIO14

D6

IO, MISO

GPIO12

D7

IO, MOSI

GPIO13

D8

IO,pull-down, SS

GPIO15

G

Gound

GND

5V

5V

3V3

3.3V

3.3V

RST

Reset

RST

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