Homebuilt ROVs Forum

OK. Are you going to power your ROV from the surface or with that 12v battery inside?
If you are going to have an onboard battery, then that battery should be fine.

Thanks,
njs552

The step up converter will be on the surface with your control setup. It needs 48v because of voltage drop. When you supply power through metal wire, the wire has a very small internal resistance. The wire will resist current flow, and so your voltage will drop as you require more current. Because o...

That Arduino Ethernet with POE board would work great, but the POE spec is 802.11af, which means you need about 48v down your cat5 to power the arduino. Depending on how you are powering your ROV or where you are operating, you will either need a POE injector: http://www.ebay.com/itm/UNIVERSAL-48V-W...

This is also another option: http://www.ebay.com/itm/261065676140 From my calculations it could go to ~303ft, and with an Arduino you could have a accuracy of up to ±6 inches. All it would need is a analog Arduino pin. Calibration may not be easy, but the values are linear so it shouldn't be much of...

You can use any motor controller you want. The software that goes on the ROV Arduino will be customized based on how the ESC's are controlled. Usually the ESC's are either PWM, PPM, or digital, and it is easy to modify the software. This is the brushless ESC I am using, and I am controlling it using...

Yes. Both LED's are running off the one step up converter, and it is rated at 3A. I got the step up converter on eBay, and I usually only run things from eBay to about 30% to 80% of their rating, but this board is high quality, and has active voltage monitoring so no matter what your input voltage i...

Thanks!

I am planning on having 2 of the LED's on the ROV, one on each side of the pilot camera to minimize light backscatter. I think 2200 lumens will do the trick.

Thanks,
njs552

Here is another update on the Bridgelux LED's: JGOUWLfUlRs In the video I did a full system test with the whole power system. The power is supplied by a 48v supply on the surface, then it is converter to 12v with a golf cart converter, then a step up converter takes 12v and steps it p to 21v to powe...

My most recent progress is another test of my brushless ROV Thruster: http://www.homebuiltrovs.com/rovforum/viewtopic.php?f=3&t=1163 I just got back from testing my high power LED with the step up converter. Hopefully I can post a video today or tomorrow. Next I will be ordering some parts for t...

Thanks! I am hoping to do another test, but with my power converter supplying 12v instead of a 12v battery as the power source.

How long does it take to ship everything half way around the world?

Thanks,
njs552