Difference between ArduPilot Mega controller board and Original Arduino Atmega2560

Hi Guys,

I was contemplating on the difference between the original ATmega2560 board (shown in blue in the diagram) and the main controller board that comes part of APM-1 (which is in red). I see this this APM-1 red board DOES NOT have a USB cable attached, whilst the blue one has a USB serial socket.

Original Arduino ATMega2560: 

http://arduino.cc/it/Main/ArduinoBoardMega2560

My APM-1 controller board: (This one is different)

https://www.sparkfun.com/products/9710

The pins are also different in both. Can someone show me why is it so, and the difference.

Thank you very much.

Tags: APM, ATMega2560, ArduPilot, Arduino, Mega, board, sparkfun

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Replies to This Discussion

Permalink Reply by Ersin Gürel on October 2, 2012 at 12:47pm

Hello,

Did you find the answer?

Permalink Reply by Shyam Balasubramanian on October 2, 2012 at 3:36pm

HI,

Both you the same chip ATMega2560. The difference b/w them is that APM is made specifically to interface it with ArduIMU (IMU board) and additional functions like telemetry. It is basically another product using the same AVR chip.

The Arduino  ATMega250 is a kit for using it to work with the chip (supposedly lesser functionalities than APM board.

This is what I could see from my working with the APM board. Any comments are welcome.

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