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EtherMega, Arduino Compatible By Freetronics

Photo of a Freetronics EtherMega that is Arduino-compatible.


Out of Stock
1 $119.00
10 $110.00


The Freetronics EtherMega - the ultimate network-connected Arduino-compatible board. The Ethermega houses a ATmega2560 MCU and a Wiznet-based Ethernet. What's more, it also houses a ATmega8u2 USB-serial converter, a microSD card slot and Power-over-Ethernet support.  Further it even has an onboard switchmode voltage regulator so it can run on up to 28V without overheating!

The EtherMega is a 100% Arduino Mega 2560 compatible board that can talk to the world. Do Twitter updates automatically, connect to web services, display sensor data online, and control devices using a web browser. The Freetronics EtherMega uses the same ATmega2560 as the Arduino Mega 2560. This means you have access to masses of RAM, flash memory, and I/O pins. The onboard Wiznet W5100 chip used by the official Arduino Ethernet Shield,  means it's compatible with the Ethernet library. Any project you would previously have built with an Arduino Mega 2560 and an Ethernet shield stacked together, you can now do all in a single, integrated board.

We've even added a micro SD card slot so you can store web content on the card, or log data to it.

But it gets even better: we found space to squeeze in a small prototyping area, so now it's possible for you to build a complete, Internet-enabled Arduino device including your own custom parts all on a single board! You don't even need to use a prototyping shield for many projects.


  • D13 Pin isolated with a mosfet so you can use it as an input
  • Reset management chip
  • Fixed SPI behaviour on Ethernet chipset
  • Robust power filtering
  • Gold Plated PCB.
  • Top and bottom parts overlays.
  • Top-Spec AT mega2560 MCU
  • Mini-USB connector: no more shorts against shields from the USB jack!
  • Switchmode voltage regulator for a wide input voltage range
  • Ethernet activity indicators on both the PCB and the jack.
  • 10/100base-T auto-selection.
  • Fully compatible with standard Ethernet library


MCU Type

Atmel ATMega2560

Operating Voltage


MCU Clock Speed

16 MHz

Input Voltage

7-28V DC Recommended

Digital I/O Pins

54 (14 provide PWM output)

Analog Input Pins

16 (analog input pins also support digital I/O, giving 70 digital I/O total if required)

Analog Resolution

10 bits, 0-1023 at 5V AREF is approx 0.00488V; 4.88mV per step

Current Per I/O Pin

40 mA maximum

Total Current For All I/O Pins

200mA maximum

Current For 3.3V Output

50mA maximum

Flash Memory

256 KB Flash Memory, of which 8 KB is used by bootloader




microSD card slow with SPI interface.


4 x hardware USART, SPI (Serial Peripheral Interface), I2C


1x10/100 LAN port using the Wiznet w5100.


Integrated USB programming and communication port. Many other one-wire, multi-wire, LCD and expansion devices supported by free code and libraries


All prices are in Australian Dollars and include GST. GST will be removed from your order if you are ordering from outside Australia.
Products may differ from pictured.
All trademarks and trade names are the properties of their respective owners. Wiltronics disclaims any proprietary interest in trademarks and trade names other than its own.

Out of Stock

EtherMega, Arduino Compatible By Freetronics



1 $119.00
10 $110.00

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