Many of you have asked for a side-by-side comparison of ArduPilot Mega and basic ArduPilot, so here it is. Note that with Mega, we moved the servo and GPS connectors to horizontal rather than vertical placement, to make them more robust in the case of a crash.

As you can see, the main processor in ArduPilot, an Atmega328, is just handling RC input and the failsafe function on Mega, while the main CPU has been upgraded to an Atmega1280, with more than twice as many I/O pins. In a sense, every chip has been upgraded to their big brother on Mega to handle more channels, sensors and communications paths. Basic ArduPilot, especially with the Turn-Rate Limiter Shield, will continue to be sold and will be the best plug-and-play solution for newcomers, while Mega will offer more capability for more advanced users.

Views: 1648


Admin
Comment by Morli on January 22, 2010 at 6:02pm
Mega looks twice the area of ardu pilot. Moving the servo and GPS to horizontal placement is good Idea Chris.
Comment by Earl on January 22, 2010 at 6:10pm
Protection diode for reverse polarity ?
Earl

Admin
Comment by Morli on January 22, 2010 at 6:24pm
Earl, I had requested Jordi for it( idiot proof power input) if possible in mockup thread , But I think there is no space for it
Comment by Earl on January 22, 2010 at 6:33pm
Looks like its there in upper right of picture. Black,round with white band.
Earl

Developer
Comment by Jordi Muñoz on January 22, 2010 at 10:05pm
Earl you got the diode. I know the diode is huge but is the only one i had on stock. ;-)
Comment by Earl on January 23, 2010 at 10:21am
Big is good. Makes people pay attention. Good move Jordi.
Earl
Comment by Paul on January 23, 2010 at 4:45pm
I did some measuring in GIMP and I see the board would be approximately: 68x39 in mm. Is that accurate?

Developer
Comment by Jordi Muñoz on January 23, 2010 at 5:02pm
The board size is: 68.48mm x 40.74mm x 4.58mm
Comment by Paul on January 23, 2010 at 5:15pm
Jordi
Thanks for the confirmation! I wasn't sure my calcs would be correct because the sparkfun board pictured on the site is slightly different than the comparison in this photo.
Comment by David on January 24, 2010 at 6:24am
What's the part number and supplier of those 3 row right angle headers? I can't seem to find a source for them.

Thanks

Comment

You need to be a member of DIY Drones to add comments!

Join DIY Drones

© 2019   Created by Chris Anderson.   Powered by

Badges  |  Report an Issue  |  Terms of Service