Ultrasonic Madness

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Sound waves can be used for more than just making sound. Find out all the amazing things sound is capable of and make some cool projects that harness it’s power!

Click on the tabs to continue learning about ultrasound!

Here are some of the other cool projects you we’ll be creating:

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Parts List

The prices really depend on what you would like to purchase. These are cheapest locations to purchase these items that I was able to find.

Part name Price
Ultrasonic Module $2.40
Arduino Uno $8.75

Software Downloads

  1. Arduino Software
  2. New Ping Library Download
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Awesome Ultrasound Projects and Experiments

  1. MIT Sound Waves and Potato Chip Bags experiment
  2. uBeam Ultrasonic Charger
  3. Boris Smus – Ultrasonic Javascript Library (Emoticon Demo)
  4. Kate Murphey – “Quietnet” Ultrasonic Chat Client

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Will It Microwave?

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Why don’t microwaves and metal get along? What makes microwaves destroy electronics? Let’s dive deep into the world of electromagnetic radiation to find out!


Help support my channel by becoming a patron!   Get social!

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Here’s what you will need for each project:



Radio Wave Project

  • A nickel (or any other coin)
  • A 9v battery
  • An AM radio

Small EMP generator

  • A disposable camera
  • A cheap calculator
  • Extra wire
  • A high voltage switch
  • Soldering equipment
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Learn more about electromagnetic radiation!

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World’s cheapest speaker!

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What do you need to make the simplest form of a speaker? Surprisingly, you probably already have everything you need! Click on the “Parts list” tab to see what you need to make both bone conducting headphones and your own speaker! Then, if you still want more, click on the “Further Learning” tab to learn more about the history of speakers!



Help support my channel by becoming a patron!


Get social!

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Here’s what you will need for these projects:



Bone Conducting Headphones

  • Small DC Motor
  • An old pair of headphones

Cheap Speaker

  • A Paperclip
  • A business card
  • A strong magnet
  • An old pair of headphones
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Learn more about the history of speakers!

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Beginners Guide To Projection Mapping

Tinkernut Labs

Basic overview of what we will be doing

This video will show you how the basics of projection mapping and how to do it on the cheap!


Parts and Downloads

You’ll need a projector, so here are a few options:

TOTAL COST: ~$60.00 or less


Important Links

Installing and Configuring VPT7

  1. VPT7
  2. Beginners Guide Tutorial

Projection Mapping Examples:
Pomplamoose “Happy Get Lucky”

LG Electronics Building Projection

Audi A1 Car Projection

Support

Make Your Own Cluster Computer (Part 2)

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65_cluster_comp2_thThis is part two of the series that shows you how to make a cluster computer using Raspberry Pi’s!

You can watch Part 1 here.

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Acquiring the Parts
Here’s what you will need:

  1. 2 or more Raspberry Pi’s
  2. SD cards for each Pi
  3. Power Cables for each Pi
  4. Powered USB Hub (optional)
  5. Networking Cables
  6. A Hub or a Router

TOTAL COST: ~$100.00

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Installing and Configuring Raspbian

  • Follow the software configuration steps shown in this video and burn the image file to an SD card for each computer in your cluster.
  • For each Raspberry Pi in your cluster, insert an imaged SD card, connect them all to the same router or switch, and then connect a power source to each one.
[tabby title=”Terminal Commands”]
    • Install nmap
      • Sudo apt-get update
      • Sudo apt-get install nmap
    • Get current IP
      • Ifconfig
    • Scan subnet for Pi’s
      • Sudo nmap -sn 192.168.1.*
    • Run test file
      • Mpiexec -n 1 hostname
    • Make test folder and file
      • Mkdir mpi_test
      • Cd mpi_test
      • Nano machinefile
        • 192.168.1.2
        • 192.168.1.3
        • 192.168.1.4
        • 192.168.1.5
      • Mpiexec -f machinefile -n 4 hostname
    • Add keys to all pi’s
      • PI01
        • Ssh-keygen
        • Cd ~
        • Cd .ssh
        • Cp id_rsa.pub pi01
        • Ssh pi@192.168.1.3
      • PI02
        • Ssh-keygen
        • Cd .ssh
        • Cp id_rsa.pub pi02
        • Scp 192.168.1.2:/home/pi/.ssh/pi01 .
        • Cat pi01 >> authorized_keys
        • Exit
      • PI03 (ssh pi@192.168.1.5)
        • Ssh-keygen
        • Cd .ssh
        • Cp id_rsa.pub pi03
        • Scp 192.168.1.2:/home/pi/.ssh/pi01 .
        • Cat pi01 >> authorized_keys
        • Exit
      • PI04
        • Ssh-keygen
        • Cd .ssh
        • Cp id_rsa.pub pi04
        • Scp 192.168.1.2:/home/pi/.ssh/pi01 .
        • Cat pi01 >> authorized_keys
        • Exit
      • PI01
        • Scp 192.168.1.3:/home/pi/.ssh/pi02
        • Cat pi02 >> authorized_keys
    • Run new machinefile
      • Cd ~
      • Nano machinefile
        • 192.168.1.2
      • Mpiexec -f machinefile -n 4 hostname
    • Run Python file
      • mpiexec -n 5 python demo/helloworld.py
      • Mpiexec -f machinefile -n 5 python /home/pi/build/mpi4py/demo/md5_dict_attack.py
    • Download and unzip file
    • Copy to all computers
      • Scp -r python_test 192.168.1.3:/home/pi
      • Mpiexec -f machinefile -n 5 python python_test/md5_attack.py
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Help support my channel:

http://www.patreon.com/tinkernut

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