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This will show you how to build a robot boat from cheap and easy to use materials, I think it is also a good example of reusing water bottles.

I used two water bottles, polymorph plastic, two motors and propellers, tape, a box, a battery and a motoruino (Arduino clone designed to work with motors, servos and sensors).

Step 1: Materials needed:

  • Two water bottles
  • Two simple dc motors
  • Two propellers
  • Isolating tape 
  • Box
  • Motoruino (or any other microcontroller and a h-bridge)
  • Battery

<p>how to attach steering options in the boat using rf module?</p>
<p>thank u very nice so easy</p>
<p>how ll i stear it</p>
<p>How do I maintain the orientation of the motor?</p>
<p>For some reasons I couldn't open the MiniRobot.pde.. </p>
Awesome idea. Very simple method for achieving something great!
<p>what is the program for it to work? </p>
<p>Does it actually work?</p>
<p>hai dud I cannot find how to use the MiniRobot.pde</p>
<p>hai dud I cannot find how to use the MiniRobot.pde</p>
<p>hai dud I cannot find how to use the MiniRobot.pde</p>
<p>hai dud I cannot find how to use the MiniRobot.pde</p>
<p>hai dud I cannot find how to use the MiniRobot.pde</p>
<p>hi, are you aware that the props need to be at an angle to run and not straight. </p><p>nice idea though</p>
i cant get it . <br> <br>can you plz tell me how you instal sonar on motoruino. <br> <br>plz
Thanks.how to increase the speed of the robot? <br> <br>is it depend on microcontroller ?
It depends on your motors and on the voltage you give them.
See here:&nbsp;<a href="http://www.robot-electronics.co.uk/htm/arduino_examples.htm#SRF04 Ultrasonic Ranger" rel="nofollow">http://www.robot-electronics.co.uk/htm/arduino_examples.htm#SRF04 Ultrasonic Ranger</a>
where do you connect on the motoruino. <br> <br>i mean to which pin <br> <br>circuit plz.....
Pin 2
sensors are built in on motoriono. Or you attached seperately?. <br>
I attached the sonar separately.
how it cost motoruini?. <br>
Have a look here:&nbsp;<a href="http://www.guibot.pt/motoruino/" rel="nofollow">http://www.guibot.pt/motoruino/</a>
how much it will cost? <br>thanks.
awesome man !!<br>would love to see live video too..
I hope I can upload one this week :D
Hi again! I would live to see this move! Video?
The propellers I bought were too big, so I created a different boat. You can see the photos and videos here:<a href="http://www.franciscodias.net/robots/roboat" rel="nofollow">http://www.franciscodias.net/robots/roboat</a>
Nice!
how well does it work? does it go fast? if so how fast?
Good idea! Video?
I'm waiting for new propellers to arrive. <br>When I got them, I'll shoot one video immediately.
Hi Xico! BittyBot from LMR! Hope you win! ;P
Thanks BittyBot!
Wow..

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Bio: Hi, My name is Francisco Dias and I'm a student from Lisbon, Portugal. Have a look at my website: http://franciscodias.net/
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