Homebuilt ROVs Forum

120v ac run through a gfi (ground fault interrupter ) IS safer than dc. I dropped an extension cord into a bucket of water and no sparks bubbles or anything. gfi clicked expediently cutting power. plus with 120 ac i wont need batteries because I will be operating off of a large boat with generators ...

I have been having alot of trouble trying to run dc down a tether. I am tired of pumping o much power down the 12 AWG wire i am using and only getting 50-60% of it to the motors, the length of the tether is not something I can change. 150ft makes a 300ft round trip and dc will not travle that far wi...

I know this is an older post. But maybe there is still some value in this. So I have made some circuits with 2 pairs of max 485 ics to hook up to arduino with only 4 wires power ground rx and tx . the other 4 pins go to 2 twisted pairs in a cat5e cable. and on the other end is a similar board just t...

I Competed in the Maryland sea-perch competition the last 2 years. The foam noodles used are obsolete for the reasons you mentioned. The foam dose not resist the pressure very well and the tiny air bubbles collapse. Our solution for this problem ( to dive 16ft down for the competition) we used 1 1/2...

I had thought about this idea but with 1.0 a toggle switch designe with power being sent down each time the toggle switch is activated a garage type system wouldn't work plus this being such a small craft and not really good for working at depth it would be over kill to do something like that. The t...

That sounds great. I will probably be using them on my project. Keep me informed. I was looking into high output led plates but they are ridiculously bright ( 5000L )and require about 20v . plus I think smaller lights like these will be nicer because I can have more for a better array. If you do the...

I like it. I am investigating all kinds of lighting options. Will they support PWM signals for dimming. I am going to be working in a low visibility area and depending on suspended particulate the lighting will need to change. Dose the housing have a plexi lens or are you just using the factory lens...

Ross To make sure I am on the same page a switching regulator such as this one http://www.alliedelec.com/search/productdetail.aspx?SKU=70069874&mkwid=syCZaSTeU&pcrid=23489912537&pkw=sd-500l-12&pmt=e&pdv=c&gclid=COvYl9W8o7kCFfBxOgodKDMAgA#tab=specs would have the same effect a...

Ross The idea of 48v regulated to 12 on board the rov by a switching type regulator will work great for 2.0 the problem is mainly with 1.0 see the motors are hardwired to 3 toggle switches in the control box topside( not the best way to do it i know, not my design blame rov in a box for that one) a ...

I am working on 2 rov projects right now 1 I am retrofitting a biology lab, basically the rov in a box model which I will refer to as 1.0 and a second one that I am building in collaboration with the local high school and university this one is refereed to as 2.0. Some details can be seen http://www...