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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-gui...
Tape hot glue + glue gun (silicon optional) two small DC motors two water bottles wires two small propellors arduino + USB cable + computer wire strip...
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 s...
Use two or three strips of tape to tape the water bottles together, sort of like a raft.
The motors are now attached to the bottle caps. Solder on long (about 10") leads to the motors, if there aren't any.
Cut a small slit in each water bottle. This is the hole through which the wires from the motors will poke through.
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, u...
Glue a plastic box to the top of your two bottles. You can bring the wires from the motors around the back, or poke a small hole in the side of the bo...
This circuit uses a TIP 120 (or similar Darlington or MOSFET) transistor, which is an electronic switch. It uses it to power a high current load beca...
Get creative! you don't need all these sensors. but add them as you like. Ping Ultrasonic Rangefinder by Parallax works nicely on the front of the b...
See images for a circuit for a simple button with a 1K resistor. Do this for two buttons, so you can mount them on both sides of the boat so that if i...
You can download some super simple premade code I wrote to give the boat basic functionality. There is code for a light-following boat and a boat with...
Put your circuit, arduino, and battery in the box.
Open Arduino. Select the correct board and correct port. Compile and upload the sketch.
Put the top of the box on. Seal up all the holes or potential leak spotswith hot glue (or silicon). Glue any stray wires with hotglue (like the photoc...
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