Hacked Gadgets Forum

June 24, 2015

AD9833 Waveform Generator

at 3:47 pm. Filed under Cool Gadgets

 

Julian Ilett has a look at a AD9833 Waveform Generator.  It looks like a nice device. Connect a microcontroller to it and use SPI to interface to it. You can set it up for square wave, sign wave or triangle wave all through SPI.  The AD9833 looks like it could be very useful whenever you need to easily generate specific frequencies. The module that Julian is using was under $7 with free shipping.

 

“Features and Benefits

  • Digitally Programmable Frequency and Phase
  • 12.65 mW Power Consumption at 3 V
  • 0 MHz to 12.5 MHz Output Frequency Range
  • 28-Bit Resolution (0.1 Hz @ 25 MHz Ref Clock)
  • Sinusoidal/Triangular/Square Wave Outputs
  • 2.3 V to 5.5 V Power Supply
  • No External Components Required
  • 3-Wire SPI Interface
  • Extended Temperature Range:
    –40°C to +105°C
  • Power-Down Option
  • 10-Lead MSOP Package
  • Qualified for automotive applications”

June 22, 2015

Nd YAG Laser Taken Apart

at 4:14 pm. Filed under Cool Gadgets, Insane Equipment

 

Photoinduction has taken apart his Nd YAG Laser. This is a complex beast of a system, I wonder what this thing cost new! He goes over some of the theory behind how the system works and demonstrates some of the parts from his huge laser system. There is some damage to this system, looks like there was probably a water cooling issue or just a loose electrical connection that allowed for some heat buildup.


June 20, 2015

Vinyl LP under an Electron Microscope

at 9:53 am. Filed under Complex Hacks, Insane Equipment

 

Have a look at the great video of this Vinyl LP under an Electron Microscope. Using an Electron Microscope isn’t as easy to use as a normal microscope, in this case the vinyl needed to be metal coated to be viewed. The scanned data was captured with a DSO and processed into a short video. It looks amazing, I didn’t realize how Vinyl Records LPs encoded the 2 stereo channels. The CD also looks very interesting up close.

 

 


June 18, 2015

UPS Hack

at 2:28 pm. Filed under Electronic Hacks

 

If you have a UPS kicking around you can hack it to be used for all of your low voltage applications. The UPS has a battery and charging circuit in a nice case, by hacking out the inverter you can reduce the load when the power fails. Now of course you won’t have 110VAC available but these days there are so many things that need 12 volts. A handy side mounted battery voltage monitor lets you check to see what your battery voltage is so you don’t drain it too low. Plug in USB converters are used but I would have liked to see some switched ones that were fixed onto the case somewhere for convenience.

June 16, 2015

Flame Speaker

at 2:11 pm. Filed under Cool Gadgets

 

You might have seen the Plasma Speaker before, this is the Flame Speaker by TX/RX Labs might not be as practical as your speakers in your living room but it sure is cool.
Via: Make

 


June 15, 2015

Game of Drones Aerial Sports League

at 11:40 pm. Filed under Cool Gadgets

 

Now that quadcopters are getting really popular it was just a matter of time before we put them in a ring and let them battle, Aerial Sports League’s Drone Combat is the result. Just like BattleBots but in the air. I would like to see some autonomous designs that can seek and destroy.

 “The Game of Drones Aerial Sports League is the premiere drone sports competition, showcasing pilot skills, engineering prowess & technological innovation through aerial combat, flying obstacle courses and other drone games.   We bring together the best inventors, pilots, and artists for a fun & educational showcase of drones and UAV’s of all shapes and sizes.  The GoDASL has divisions for tiny palm-sized toys all the way up to huge multi-rotor heavy-lifters, and include both combat and non-combat games.

 

June 14, 2015

TIG Welder Auto Pulse System

at 9:23 am. Filed under Cool Gadgets

  TIG Welder Auto Pulse System_3

 

 If you are a welder you might want to have a close look at the TIG Perfect project/product. It uses the Parallax Propeller chip which was designed by Chip Gracey (great interview here). This looks like the optimal fit for a Propeller chip, a low volume product that has high value to people that can get use out of it.  The design looks great, nice use of the single rotary encoder for the UI.

Via: Parallax

“TIG Perfect is a plug and play device for your TIG Welder. This device adds pulsing functionality to your under-equipped/less-expensive welder, at a fraction of the cost of buying a welder with these features built into it.
Here is how it works: the TIG welder uses a 0-10v signal for the pedal position… my device reads this signal as an input, and generates a new signal output based on this input and user settings. Some of my challenges that I had when developing this is that a TIG welder (or any welder really) emits a TON of interference. I had to design this device to be able to withstand this interference and not reset or become damaged from prolonged exposure. This involved creating various filters on the power supply rails, the addition of protective circuitry, and using more tolerant electrical components. Having solid grounds to the case was also very important to better shield the circuit.”

 

 

TIG Welder Auto Pulse System2

 

TIG Welder Auto Pulse System_1

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