Arduino Control

[mrtristanplaysguitar]

Hey guys -

Basically, I've figure out how I'm going to wire everything, I've found an arduino friend (to teach me programming ), but i need to figure out power to the arduino. Maybe this is topic better posted on an arduino forum, but homebuiltrovs is a better place.

Anyway, I'm in the MATE competition. Next year I'm hoping to control my Ranger class ROV using an arduino, but we are only allowed to use their power source.

12V DC, 25 amp. Power source or battery. Power sources are set higher at about 13.5 I think.

So, since Arduino's have COM (USB) input and 9-Volt power input, I want to power it using the 12V source and control it using a visual basic or equivalent program on my laptop. So basically, since the rules are so strict about not power control things with outside power, I want to convert 12V DC to 9V DC. Does anybody know a good way to do this?

Thanks for any suggestions

-Tristan

[mrtristanplaysguitar]

I also forgot to add comments about that image. I still have to add diodes on the negative side and the transistors are representing MOSFETs. MOSFETs because of the 12 Volts running the the drain and source. 5 Volt arduino digital output running through the gate. the MOSFETs act as switches.

-Tristan

[lostcaggy]

You can power the Arduino with a 12V power source,
From the Arduino website

power supply range is 6V - 20V with suggested 7V - 12V

[tristanplaysguitar]

Oh, cool. Wow, I feel a little stupid. Next time I'll do my research

-Tristan

[lostcaggy]

No problem
I work with Arduino a lot, my ROV uses Arduino for all it's control

[soulreaper]

Lostcaggy can you post pictures of your Rov on the forum?

[lostcaggy]

Pictures posted

[tristanplaysguitar]

Where are those pictures posted?

-Tristan

[thegadgetguy]

I think that these may be the pictures lostcaggy posted:
viewtopic.php?f=18&t=323