Using your Ardunio or Raspberry Pi to Squirt Water

A link to the official Project Page : This was the Confirmation Page that gave us the confirmation to present that year at Maker Faire Bay Area

This was my third and most recent presentation. Myself with some guidance from my Dad built a water sensor that sensed when someone was near it and squirted water at them.

Link to the Original Informational Powerpoint : This is the original PowerPoint we used on stage while we were presenting. I'll also include a summary of it here. 

ROBOT WATER GUN

powered by ardunio

parts list (prices are averaged):

    -Ardunio (Uno R3) $10-15

    -12 V Adapter, 1Amp, Center Positive, 2,1mm power plug

    -Motorized Squirt Gun

     or

     Ultra-quiet Mini 4.8W DC12V Micro Brushless Water Oil Pump (amazon.com) $10

    -Motion Sensor $5

    -Motor (turn gun) $10

    -Breadboard $1

    -Jumper Wires $5

    -Relay Module $5

Next, you'll need to install the Ardunio IDE Programming Interface for your PC

you can do that at https://www.arduino.cc/en/Main/Software

To start out, you'll want to learn the basics, I recommend this link:

Ardunio Lesson 1: Blink (Adafruit) 

So, first of all, we're going to use Pins.

The pins on the Arduino can be configured as either inputs or outputs. We'll be using the Ardunio as Processing. 

We'll also be using a squirt gun motor (or whatever device you're using):

    -the motor has two wires, a positive and a negative

    -we want to use RELAY to control it

    -this also works with lights or any other device that has two wires

    -plug in the power separately from the ardunio

We'll also be using a distance sensor:

it has many different types of pins

    -5 Volts

    -Ground

    -Trigger

    -Echo

The distance sensor works by sending out a sound, receives it, and then calculates the distance.

Here is an example of how a relay works:

And here is how it all hooks up:

And that's it! You can always refer to the PowerPoint at the top for examples of each part!

Robot water gun.pptx