Arduino Based remote controlled Submarine

I want to make this project .
where should i start .
please suggest me any design any idea . :-D :fight: :roll: :thinker: :!:

Which items do you have now?

* You'll need the boat, with ballast weights, watertight lid, etc.

* Propulsion system (motor and propeller, battery).

* Steering system (servos, rudder, fins).

* Radio receiver. Antenna. Electronic interpretation of commands.

* Radio transmitter. Antenna.

I imagine the Arduino accepts your commands and sends them to the transmitter?

Commands can be sent on one radio frequency, multiplexed.

Hello!

Radio transmissions cannot reach the submarine when it's diving.
Even military submarines can't make it. They have to be close to the
surface and use long waves radio signals, low bit rate.

So it might be fully automated (i.e. no radio at all). Or maybe driven
with a cable if you want to take pictures under the sea for example.
Among the other transmission systems:
- optical (if the water is clear)
- acoustic modem (but you will be limited to a few hundreds of bytes, and you need quite
some power).

The simplest solution is a cable, which allows you to monitor what's in front of the
caemera. Assuming it's a camera submarine.

But beside this, there is quite some metal work so that it can be waterproof at a certain
depth. Depends on what you want to do.

Dora.

doraemon said:

Hello!

Radio transmissions cannot reach the submarine when it's diving.
Even military submarines can't make it.

.

Click to expand...

True in practical hobby terms, but from https://en.wikipedia.org/wiki/Communication_with_submarines


Electromagnetic waves in the ELF and SLF frequency ranges (3–300 Hz) can penetrate seawater to depths of hundreds of meters, allowing communication with submarines at their operating depths. Building an ELF transmitter is a formidable challenge, as they have to work at incredibly long wavelengths: The US Navy's system, Seafarer, which was a variant of a larger system proposed under the codename Project Sanguine,[1] operated at 76 hertz,[2] the Soviet/Russian system (called ZEVS) at 82 hertz.[3] The latter corresponds to a wavelength of 3,658.5 kilometers. That is more than a quarter of the Earth's diameter. Obviously, the usual half-wavelength dipole antenna cannot be feasibly constructed.

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try https://www.instructables.com/howto/submarine/ or https://www.instructables.com/howto/rov/
for some ideas

I suggest you sit back and think about what you want it to do, realizing the more you want the more difficult and expensive it becomes.
Perhaps it is best to start with something quite simple; wired control and power, forward speed/bank/dive control.

if it is to be wireless, then the batteries need to be on board

yes you would need motors and servo-motors

Hello!

Again, inside of water you cannot use radio waves, so your submarine will communicate only
when emerged.
As the water is likely to be clear, I would go for an optical system to transmit to and receive from
the submarine. I'm not sure IR can be used in water, but visible wavelength can. Using a transmission
similar to remote control signals is extremely simple and even Arduino is reactive enough to do it.
NB: in a pool with day light, filtering the signals from the ambiant light might be tricky.

Dora.

Hello,

I think that IR is suitable for your purpose, I can not think of any reason why it not will work.

Good luck!

I think there actually is a problem with using IR. When using IR on your transmitter most of the light will bounce on the water surface, so only a small part will actually go in the water.

The light beams that are entering the water will also be cast in a different angle then the original beam. So it will be very hard to exactly point to your submarine.

Hello,
That is true dragonsoldier, but I meant that the IR transmitter is placed in the water and thus not on the surface.
Therefore you tackle the bouncing and angle problem.
If I have overlooked something then I am delighted to hear from you!
Arjan.