Hi,
I purchased the Ardupilot Mega and a bunch of components for a UAV project on my Easystar. The problem I am running into is that the components require 3.3v. I don't see any source coming from the Ardupilot Mega that can provide the 3.3v yet I keep reading hints that there is some solder jumper that will make the unit provide 3.3v instead of 5v. I do not know if that is true however.
In the mean time I am kind of stuck because I really need a stable regulated 3.3v for my 6DOF, Magnatometer and GPS,
I realise that I could just place a resister on the 5v out to provide around 3.3v but not sure how clean that would be.
What are you guys doing to provide a clean 3.3v to your components?
Also, would it be possible that I could get a Beta copy of the mega's manual?
Thanks!
Replies
Here is a nice, efficient, complete 3-pin 3.3V switching regulator for $15:
http://www.dimensionengineering.com/DE-SW033.htm
I have used their adjustable regulators on UAVs with good success.
Mark
The ArduMeg schematic only shows a +5 vdc regulator. I know that there is a 3.3 vdc regulator on the ArduMega Shield. If you require 3.3 vdc for your sensors, you are going to have to add your own 3.3 vdc regulator I suspect.
Regards,
TCIII