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Underwater ROV

Posted: Wed Jul 31, 2019 7:14 pm
by Engineering_
I am trying to build an ROV using a raspberry pi to control the ROV’s motors and to live stream video. Do I need to use ESCs or are relays sufficient to connect the motors to the pi? Also what python code could I use to control the motors using the pi. Many thanks.

Re: Underwater ROV

Posted: Wed Jul 31, 2019 8:04 pm
by blimpyway
relays turn motors on or off and that's it, with esc-s you have throttle control.

Is the rov tethered - how do you stream video?

Re: Underwater ROV

Posted: Wed Jul 31, 2019 8:14 pm
by Engineering_
My intent was to tether the ROV with an Ethernet cable connecting the pi to my computer, streaming video through the pi’s camera. What would a wireless connection involve? Many thanks.

Re: Underwater ROV

Posted: Thu Aug 01, 2019 11:30 am
by TonyD
Wireless or rather most RF doesn't work very well submersed in water which is why all ROV's are tethered via a cable to the surface.

Re: Underwater ROV

Posted: Thu Aug 01, 2019 12:11 pm
by scotty101
TonyD wrote:
Thu Aug 01, 2019 11:30 am
Wireless or rather most RF doesn't work very well submersed in water which is why all ROV's are tethered via a cable to the surface.
Yep - Remotely Operated Vehicle suggests that you are able to communicate with them
The class of underwater vehicles that don't require a tether are called AUVs. Autonomous Underwater Vehicles. Significantly more complex to develop.