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wemos® Mega +WiFi R3 module atmega2560+esp8266 Arduino Compatible Development Board

wemos® Mega +WiFi R3 module atmega2560+esp8266 Arduino Compatible Development Board
wemos® Mega +WiFi R3 module atmega2560+esp8266 Arduino Compatible Development Board
₹​1,080.00
GST & Shipping Calculated at Checkout
B2B GST Credit Available
20 or more ₹​962.00

Mega 2560 R3 + WiFi ESP8266 Development Board - NodeMCU 

The perfect low cost IoT board with Arduino Mega R3 compatible design and onboard ESP8266 + 8Mb flash. WiFi board antenna and direct interface with ATmega2560. Programmable (both Arduino + ESP8266) using CH340G based USB to TTL interface which can also be used as a generic com port. Ideal solution for Network connected embedded computing applications..


It is a customized version of the classic ARDUINO MEGA R3 board. Full integration of Atmel ATmega2560 microcontroller and ESP8266 Wi-Fi IC, with 32 Mb (megabits) of flash memory, and CH340G USB-TTL converter on a single board! All components can be set up to work together or independently.

Dimensional drawing

Dimensions MEGA+WiFi R3 ATmega2560+ESP8266, flash 32Mb, USB-TTL CH340G, Micro-USBDimensions MEGA+WiFi R3 ATmega2560+ESP8266, flash 32Mb, USB-TTL CH340G, Micro-USB

Pinout

Pinout MEGA+WiFi R3 ATmega2560+ESP8266, flash 32Mb, USB-TTL CH340G, Micro-USBPinout MEGA+WiFi R3 ATmega2560+ESP8266, flash 32Mb, USB-TTL CH340G, Micro-USB

Schematic

Schematic of MEGA+WiFi R3 ATmega2560+ESP8266, flash 32Mb, USB-TTL CH340G, Micro-USB

Drivers

Windows driver for MEGA+WiFi R3 ATmega2560+ESP8266, flash 32Mb, USB-TTL CH340G, Micro-USBLinux driver for MEGA+WiFi R3 ATmega2560+ESP8266, flash 32Mb, USB-TTL CH340G, Micro-USBMac OS driver for MEGA+WiFi R3 ATmega2560+ESP8266, flash 32Mb, USB-TTL CH340G, Micro-USB

Operating mode is selected by means of DIP switches on-board:

Switch status and mode selection:

 

1

2

3

4

5

6

7

8

CH340 connect to ESP8266 (upload sketch)

OFF

OFF

OFF

OFF

ON

ON

ON

NoUSE

CH340 connect to ESP8266 (connect)

OFF

OFF

OFF

OFF

ON

ON

OFF

NoUSE

CH340 connect to ATmega2560 (upload sketch)

OFF

OFF

ON

ON

OFF

OFF

OFF

NoUSE

CH340 connect to Mega2560 COM3 connect to ESP8266

ON

ON

ON

ON

OFF

OFF

OFF

NoUSE

Mega2560+ESP8266

ON

ON

OFF

OFF

OFF

OFF

OFF

NoUSE

All modules work independent

OFF

OFF

OFF

OFF

OFF

OFF

OFF

NoUSE

    

Also, have switch for change of connecting port between ATmega2560 and ESP8266

After choosing the mode of the board can proceed to set up the IDE

It is important that when the ESP8266 module is programming, it is necessary to press the button “Mode”

To begin open the Arduino IDE programming environment and go to settings

Then in the window that appears in the row, Additional Boards Manager URLs (marked in red) insert http://arduino.esp8266.com/stable/package_esp8266com_index.json link for installation in Arduino IDE additional scripts that would work with the modules ESP8266 and click OK

Then go to the Tools> Board> Boards Manager

In the window that appears, scroll through the list down to the script esp8266 by ESP8266 Community and click.

In the lower right corner will be able to select the version of the software, select the version 2.1.0 (the newest) and click the Install button

After installation, close the window and go to Tools> Board and see the list of available devices on the chip programming ESP8266

Next, you need to select the card as shown in the picture (Generic ESP8266 module)

Select the upload speed - 115200

 

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