Building a semi Smart, DIY boat with Arduino and some other sensors




I based this off of this really nice instructables.com post for building a water bottle boat, with some additions for obstacle avoidance and light-guided control. I used Arduino as a microcontroller, an ultrasonic sensor in the front, a few simple switches on the side of the boat, and a few light sensors on either side.  See here for a few more photos or here for a pdf step by step.
DIY boat with Arduino




This simple little floating boat bounces off walls, can be steered with a flashlight, and won’t hit something head-on.

Step 1: MATERIALS

Tape
hot glue + glue gun (silicon optional)
two small DC motors
two water bottles
wires
two small propellors
arduino + USB cable + computer
wire strippers
a plastic box
a 9V battery + a connector
a power diode (like 1n4004)
some resistors
scissors
a soldering iron + solder
a MOSFET transistor or TIP 120
2 few switches + 2 photocells

Step 2: Put the motor in the cap

1. Take off the top of both water bottles
2. Poke a hole in each cap
3. Apply hot glue to the inside of the cap, but not on the hole. Slip the motor shaft through the hole. When dry, the shaft should spin freely.

Do this with both bottle caps and motors.

Step 3: Tape the water bottles together

Use two or three strips of tape to tape the water bottles together, sort of like a raft.

Step 4: Solder leads to the dc motors if there are none

The motors are now attached to the bottle caps.

Solder on long (about 10″) leads to the motors, if there aren’t any.

Step 5: Cut a slit in the water bottle

Cut a small slit in each water bottle.
This is the hole through which the wires from the motors will poke through.

DIY boat with Arduino circuit

Step 6: Put on the cap and feed through the wires

Put the cap on the bottle and feed the wires into the bottle opening, then out the slit that you just made. If you have trouble screwing on the cap, use some hot glue to secure it.

Major Components in Project

Tape
hot glue + glue gun (silicon optional)
two small DC motors
two water bottles
wires
two small propellors
arduino + USB cable + computer
wire strippers
a plastic box
a 9V battery + a connector
a power diode (like 1n4004)
some resistors
scissors
a soldering iron + solder
a MOSFET transistor or TIP 120
2 few switches + 2 photocells

 

For more detail: Building a semi Smart, DIY boat with Arduino and some other sensors




This Post / Project can also be found using search terms:

  • arduino boat
  • arduino applications for boats
  • sailboat instrument arduino
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