17
August

Ultrasonic Madness

[vc_row][vc_column width=”2/3″][vc_separator][venera_framed_image content_type=”video” css_animation=”appear” frame_type=”browser” slider_engine=”flexslider” video_link=”https://www.youtube.com/watch?v=cV4MdQuRArE” browser_url=”https://www.youtube.com/watch?v=LssEe_xx3eI”][vc_separator][/vc_column][vc_column width=”1/3″][/vc_column][/vc_row][vc_row][vc_column width=”2/3″][vc_tabs][vc_tab title=”About This Project” tab_id=”1402713028-1-39e9a4-2f888a6d-d37d76d3-94ce5609-2f71″][vc_column_text]

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:

[/vc_column_text][/vc_tab][vc_tab title=”Parts and Downloads” tab_id=”1402713028-2-39e9a4-2f888a6d-d37d76d3-94ce5609-2f71″][vc_button title=”Download Arduino Code” target=”_self” color=”btn-primary” icon=”none” size=”btn-huge” href=”http://www.tinkernut.com/demos/369_ultrasound/ultrasound_ruler_demo.zip”][vc_column_text]

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

Help support my channel:

  1. Donate To My Patreon
  2. Follw Me On Google +
  3. Like Me On Facebook
  4. Follow Me On Twitter
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27
July

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!

[/vc_column_text][/vc_tab][vc_tab title=”Parts List” tab_id=”1402713028-2-39afe7-cbb103e5-43f2″][vc_column_text]

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
[/vc_column_text][/vc_tab][vc_tab title=”Further Learning” tab_id=”1402713403419-2-1afe7-cbb103e5-43f2″][vc_column_text]

Learn more about electromagnetic radiation!

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13
July

World’s cheapest speaker!

[vc_row][vc_column width=”2/3″][vc_separator][venera_framed_image content_type=”video” css_animation=”appear” frame_type=”browser” slider_engine=”flexslider” video_link=”https://www.youtube.com/watch?v=WTWe3OcD7u4″ browser_url=”https://www.youtube.com/watch?v=WTWe3OcD7u4″][vc_separator][/vc_column][vc_column width=”1/3″][/vc_column][/vc_row][vc_row][vc_column width=”2/3″][vc_tabs][vc_tab title=”About This Project” tab_id=”1402713028-1-39afe7-cbb1″][vc_column_text]

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!

[/vc_column_text][/vc_tab][vc_tab title=”Parts List” tab_id=”1402713028-2-39afe7-cbb1″][vc_column_text]

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
[/vc_column_text][/vc_tab][vc_tab title=”Further Learning” tab_id=”1402713403419-2-1afe7-cbb1″][vc_column_text]

Learn more about the history of speakers!

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24
May

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

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27
April

Make Your Own Cluster Computer

[vc_row][vc_column width=”2/3″][vc_separator][venera_framed_image content_type=”video” css_animation=”appear” frame_type=”browser” slider_engine=”flexslider” video_link=”https://www.youtube.com/watch?v=1R0UgIgcb5g” browser_url=”https://www.youtube.com/watch?v=1R0UgIgcb5g”][vc_separator][/vc_column][vc_column width=”1/3″][/vc_column][/vc_row][vc_row][vc_column width=”2/3″][vc_tabs][vc_tab title=”About This Project” tab_id=”1402713028-1-39e9a4-2f886e2a-7d43″][vc_column_text]

Learn how to make a cluster computer using Raspberry Pi’s! You can also use this method to build your own super computer.

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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 [tabby title=”Software”] [/vc_column_text][/vc_tab][vc_tab title=”Code” tab_id=”1402753910272-3-86e2a-7d43″][vc_column_text]

Installing and Configuring Raspbian

  • Download the Raspbian Image from here.
  • Burn the Raspbian Image to your SD Card
  • Once the image is burned to your SD Card, but it into the Raspberry Pi and boot it up with a Keyboard, Mouse, Monitor and Internet attached.
  • Upon first boot, you should see the Rasbperry Pi Configuration screen (otherwise type “sudo raspbi-config“. Here’s the options we’ll need to configure
      • Expand the File System
      • If needed, set the Internationalization options to match your countries keyboard layout.
      • Overlcock the Pi to 800 Mhz
      • Advanced Options
        • Set the Hostname to Pi01
        • Split the memory to 16mb for graphics
        • Enable SSH
      • Finish out of the configuration, but don’t reboot yet
      • To enable auto-login, at the terminal command type “sudo nano /etc/inittab”
        • Comment out this line: #1:2345:respawn:/sbin/getty --noclear 38400 tty1
        • And add this line right beneath it: 1:2345:respawn:/bin/login -f pi tty1 </dev/tty1 >/dev/tty1 2>&1
      • Now you can reboot your Pi and it should auto-login
[tabby title=”Terminal Commands”]

Installing MPICH

  • MPICH is software that allows for multi-processing communication between computers.
  • To install it on your Raspberry Pi, first make sure you have a valid Internet connection going to the Pi. Then follow these Terminal Commands 
    • sudo apt-get update
    • mkdir mpich2
    • cd ~/mpich2
    • wget http://www.mpich.org/static/downloads/3.1/mpich-3.1.tar.gz
    • tar xfz mpich-3.1.tar.gz
    • sudo mkdir /home/rpimpi/
    • sudo mkdir /home/rpimpi/mpi-install
    • mkdir /home/pi/mpi-build
    • cd /home/pi/mpi-build
    • sudo apt-get install gfortran
    • sudo /home/pi/mpich2/mpich-3.1/configure -prefix=/home/rpimpi/mpi-install
    • sudo make
    • sudo make install
    • nano .bashrc
      • PATH=$PATH:/home/rpimpi/mpi-install/bin
    • sudo reboot
    • mpiexec -n 1 hostname
  • These commands will download and install MPICH, as well as add it as a path to your BASHRC boot file. The last command runs a test to see if it works. If the last command returns “Pi01”, then you did everything successfully.

Installing MPI4PY

  • As it is, MPICH can run C and Fortran programs. But since the Raspberry Pi has the Python coding environment pre-installed, it would be easiest to install a Python to MPI interpreter. Here’s the commands to do that:
[/vc_column_text][/vc_tab][vc_tab title=”Important Links” tab_id=”1402753981900-3-106e2a-7d43″][vc_column_text] Help support my channel: http://www.patreon.com/tinkernut Follow Tinkernut! Google + Facebook Twitter [/vc_column_text][/vc_tab][/vc_tabs][/vc_column][vc_column width=”1/3″][/vc_column][/vc_row]
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29
March

Arduino Motion Detecting Squirt Gun

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In case you want a nerdier way to make a cheap motion detecting squirt gun, Here’s how you can build your own with an Arduino and a PIR sensor!

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Acquiring the Parts
Here’s what you will need:

  1. Raid Auto Trigger
  2. Arduino
  3. PIR Motion Sensor
  4. Diode
  5. NPN Transistor
  6. Wire cutters and wire

TOTAL COST: ~$45.00

[/vc_column_text][/vc_tab][vc_tab title=”Assembly” tab_id=”1402753910272-3-846d9-0fc4″][vc_column_text]

Disassemble the Automatic Sprayer
Wire Up The Arduino
Here is a schematic of the Arduino. You can download the Fritzing files by clicking on this link. Screen Shot 2014-03-29 at 3.15.19 PM [tabby title=”Step 3″]

Add The Code
Here is a copy of the Arduino code to upload to your arduino. You can also download it by clicking on this link. const int pirPower = 13; const int pirIn = 12; int motorPin1 = 3; void setup(){ pinMode(pirPower, OUTPUT); pinMode(pirIn, INPUT); pinMode(motorPin1, OUTPUT); digitalWrite(motorPin1, LOW); digitalWrite(pirPower, HIGH); } void loop(){ int value= digitalRead(pirIn); if (value == HIGH){ digitalWrite(motorPin1, HIGH); delay(500); digitalWrite(motorPin1, LOW); } }

[/vc_column_text][/vc_tab][vc_tab title=”Important Links” tab_id=”1402753981900-3-1046d9-0fc4″][vc_column_text] Help support my channel: http://www.patreon.com/tinkernut Follow Tinkernut! Google + Facebook Twitter [/vc_column_text][/vc_tab][/vc_tabs][/vc_column][vc_column width=”1/3″][/vc_column][/vc_row]
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29
March

Motion Detecting Squirt Gun Prank

[vc_row][vc_column width=”2/3″][vc_separator][venera_framed_image content_type=”video” css_animation=”appear” frame_type=”browser” slider_engine=”flexslider” video_link=”https://www.youtube.com/watch?v=T7zxvW7MZac” browser_url=”https://www.youtube.com/watch?v=T7zxvW7MZac”][vc_separator][/vc_column][vc_column width=”1/3″][/vc_column][/vc_row][vc_row][vc_column width=”2/3″][vc_tabs][vc_tab title=”About This Project” tab_id=”1402713028-1-39e9a4-2f888a6d-d37d”][vc_column_text]

In this April Fools day video, learn how to make a cheap motion detecting squirt gun using parts that you can find in your local grocery store!

If you want a geekier way to build a motion detecting squirt gun, check out the Arduino version of this same project.

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Acquiring the Parts
Here’s what you will need:

TOTAL COST: ~$25.00

[/vc_column_text][/vc_tab][vc_tab title=”Assembly” tab_id=”1402753910272-3-88a6d-d37d”][vc_column_text]

Disassemble the Air Freshner
Disassemble the Automatic Sprayer
Connect the Air Freshner to the Automatic Sprayer
[/vc_column_text][/vc_tab][vc_tab title=”Important Links” tab_id=”1402753981900-3-108a6d-d37d”][vc_column_text] Help support my channel: http://www.patreon.com/tinkernut Follow Tinkernut! Google + Facebook Twitter [/vc_column_text][/vc_tab][/vc_tabs][/vc_column][vc_column width=”1/3″][/vc_column][/vc_row]
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