Hacked Gadgets Forum

February 19, 2013

Magnetic Perpetual Motion Machine

at 9:52 pm. Filed under Insane Equipment, What Were They Thinking


Another Perpetual Motion Machine here, this one is magnetic. Not sure how this one was done. Any ideas? It is very convincing, my first guess would be a small motor within the center drum. The real system is demonstrated at the 2:00 mark.


After you are done guessing how this is done click here or have a look in the comments (number 13). Mfsamuel has located an image that shows us how this was done.

February 18, 2013

Dead Proform Treadmill Fixed using a Parallax Propeller Brain Implant

at 12:45 pm. Filed under DIY Hacks, Electronic Hacks


What do you do when you have an old treadmill and the controller dies? Most people would haul it to the dump, some might contact the manufacturer and see if a replacement controller is available, having it repaired in your home is probably not an option since the diagnostic call can repair service call and repair parts would probably cost more than a new unit. Parallax forum member knikula looked into getting a replacement controller but because of the system age replacement parts were no longer available. So he did what people like us do, make your own controller! The Dead Proform Treadmill was Fixed using a Parallax Propeller Brain Implant.

He is using a powerful Parallax Propeller controller development board but as he mentions this expensive board will eventually be used for something else since the main purpose of the expensive development board is simply to get your prototype up and running quickly. The system interfaces with the treadmill tilt up and down mechanism and the speed controller. He has tied in a heart rate monitor, a PC keyboard and computer via serial to input and monitor the status of his workout. Looks a bit overkill but now that he has everything working, a few buttons, a 4 line LCD display, the Parallax controller and a handful of devices is all he will need for the completed version. A cool idea would be to skip most of that and just connect it to a smart phone for display and control! 

February 16, 2013

Name the Thing Contest – 222

at 8:08 pm. Filed under Contests



The prize this week is a breadboard power supply. This contest will run for one week (Feb 16 – 22, 2013). Ending time is based on central standard time. To enter, identify the item above and what it can be used for.

Please do not give the answer in the comments.

Send an email to contest @ hackedgadgets.com with “Name the Thing Contest” as the subject, and the message body consisting of:

  • The name of the item in the above picture
  • An example of what the item pictured above can be used for

The winner will be chosen at random from all of the correct entries.


Added March 12, 2013

The item to guess was the top (positive terminal) of an AA battery

The winner is Tim H. (there were 251 entries)


Below is a picture of the prize.



Micro Granny – Pocket Sized Arduino based Granular Sampler

at 11:01 am. Filed under DIY Hacks, Electronic Hacks

Micro Granny - Pocket Sized Arduino based Granular Sampler


If you are looking to make some noise with your next project, have a look at the Micro Granny, it’s a Pocket Sized Arduino based Granular Sampler.

Via: Make


  • basic parameters of sound: pitch, crush, volume, start, cut, repeat
  • micro sampling parameters of sound: shift speed, loop length, shift direction (forward,backward,random1,random2)
  • lfo parameters of sound: rate, amount, destination (pitch, crush)
  • instant loop feature
  • micro SD card slot  (plays monophonic wav samples)
  • 8 presets (15 sounds each)
  • MIDI input (MIDI through by special connector)
  • intuitive interface
  • 3 digit 7-segment display to keep track of editing
  • 2 pots to tweak the parameters
  • mode switching buttons
  • 4 perfect response trigger buttons
  • hold button
  • 3.5mm jack output
  • volume trim-pot
  • size: 11 x 7 x 4 cm
  • input voltage 9-12 V
  • Arduino based – hackable – standart FTDi pinout”


microGranny + frauAngelico + ^[xor] synth prototype from standuino on Vimeo.

February 15, 2013

Tektronix 465 Oscilloscope Repair and Refurbishment

at 10:56 pm. Filed under Educational, Electronic Hacks, Vintage Electronics

Tektronix 465 Oscilloscope Repair and Refurbishment_3


This forum post over at the EEVBlog Forum gives us a great look at the inside of an old Tektronix 465 Oscilloscope and walks through the repair and refurbishment of the scope. The refurbishment isn’t just taking a cotton swab and rubbing out some dirt, it is rather invasive including a complete system dismantle and cleaning. Nice thing about this method is we get to see all of the internal workings of the device! Thanks to ModemHead for taking the time for documenting this.



February 14, 2013

Laser Cut Stool

at 7:51 pm. Filed under DIY Hacks

Laser Cut Stool


If you have a laser machine and want to make something cool, check out this stool that was cut by hisashi_kun from some 2.5mm MDF. Even if you don’t use it as a stool it looks like a nice conversation piece to have in the corner of the living room. Everything in the middle slots together and the outer pieces snap together and has cuts that allow the wood to curve around the center.


February 13, 2013

HackEDA – Automatic Circuit Design

at 6:11 pm. Filed under DIY Hacks, Educational, Electronic Hacks

HackEDA - Automatic Circuit Design


When developing a new circuit design you will find that you often drop in solutions from previous projects since there’s no reason to re-invent the wheel every time. HackEDA takes this idea and pushes it out to the web, it’s in beta right now so it might not be able to handle all of your project ideas but by clicking a few buttons you can build the basic framework for many project ideas. After you are done you can simply download your Eagle 6 schematic.

Thanks for the tip Ben.

“At it’s core, it’s a system for collecting reusable-sized pieces of electronic designs, along with the knowledge necessary to reuse them in new designs. The library is available to browse online, you can download the individual bits, and there’s also a tool for creating custom circuits by simply selecting the features your project needs.”

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