WeMos D1 WiFi Wireless Development Board CH340 ESP8266
  • WeMos D1 WiFi Wireless Development Board CH340 ESP8266

#2760: WeMos D1 WiFi Wireless Development Board CH340 ESP8266

R143.10


This is a great Arduino-like development board but it NOT an Arduino, it is a "WeMos". You can code it in the normal Arduino IDE but this board is different from a normal Uno in many ways. It runs at 80MHz (vs 16MHz of an Uno) and operates at 3.3V (thus is less power intensive than an Uno) and also has 4MB of built-in storage space! The downside is that even though layout looks very similar to an Uno, it is not compatible with most Arduino Shields due the operating voltage being 3.3V (versus 5V for an Uno).

To communicate between an Arduino and a WeMos you need to add a middleman device to change the voltages from 5v to 3.3v (and vice versa) such as a standard I2C module available from the Leobot website.

The biggest benifit of this development board is its built-in support for WiFi support! It even includes an example code to create a simple HTTP server to be used in The Internet Of Things (IOT) projects by allowing you communicate directly with your Arduino over the internet from anywhere in the world.

More detail can be found on the WeMos site about the D1: https://wiki.wemos.cc/products:d1:d1

Remember to NEVER directly connect an Arduino to a WeMos or you may destroy the WeMos. Use an I2C converter in between at all times.

 

Product Details

 

Operating Voltage 3.3V
Digital I/O Pins 11
Analog Input Pins 1(Max input: 3.2V)
Clock Speed 80MHz/160MHz
Flash 4M bytes
Length 68.6mm
Width 53.4mm
Weight

25g

 

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, 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 3.3V
RST Reset RST
All of the IO pins have interrupt/pwm/I2C/one-wire support except D0.

All of the IO pins run at 3.3V. 

Tutorials

Arduino Introduction
Introducing you to the awesome Arduino!

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WeMos D1 WiFi Wireless Development Board CH340 ESP8266

Regular price: R143.10
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In Stock: 4



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