ROVworld Subsea Information

Deep Trekker Micro ROV Remotely Operated Vehicle
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Hi, i've worked with computers for years and have some basic electronics and light-machining experience and plan to build a mini observation ROV for undersea exploring down to 200M.

I've never piloted one before so i hope it's okay to log my build journey here, being a novice, i suspect this would be a good place for criticism since it's a pilots forum.

I'm in the design stage and still reading/video-watching to see what other builder's have done.


Cheers, Gary.
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I've gone for 8 thrusters, four in centre for vertical and 1 at each corner at 45 degrees.

Managed to get the arduino controlling a single brushless motor, the A2212/13T (the uno can handle up to 12) using a ps3 controller in forward and reverse, not a lot of info on the right PWM speeds to send to the ESC so a bit of trial and error there.

Next job is to make a test-frame for the motors and code the motor-control.

Cheers, Gary.
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After thinking through power requirements, battery-space etc i''m now going for a 5-thruster design, four on the corners at 45 degrees and one slightly forward of centre for up/down/pitch.

The motor and ESC are rated for 10A but at full throttle (in either forward or reverse) only 0.3A is being used (at 7.4V).

Prototype video here :

https://www.youtube.com/watch?v=_afuE7RC0mk&index=2&list=PLyLMmnSL6MzH4qumJUEHgLCdPWjAUoXYi

If anyone has any ideas as to why full power isn''t being used at full throttle i''d be very grateful to ehar them as this has had me stumped for a couple of days.


Cheers, Gary.
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Now i feel stupid, someone pointed out that my test wasn''t underwater so the motor was doing very little work so very little current draw :/

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