Hacked Gadgets Forum

August 31, 2015

Verilog for FPGA

at 11:18 am. Filed under Complex Hacks, Electronic Hacks

Verilog for FPGA


 from Hackaday has some nice tutorials to get you up to speed in using an FPGA. 

“Whatever tools you use, the workflow for any FPGA is basically the same, although details of the specific tools may vary. Sometimes the names vary a bit, too. Although you write code in Verilog, the FPGA has different blocks (not all vendors call them blocks) that have certain functions and methods they can connect. Not all blocks have to be the same either. For example, some FPGAs have blocks that are essentially look up tables. Suppose you have a look up table with one bit of output and 16 rows. That table could generate any combinatorial logic with 4 inputs and one output. Other blocks on the same FPGA might be set up to be used as memory, DSP calculations, or even clock generation.”


August 29, 2015

50,000V High Voltage Power Supply Build

at 1:40 pm. Filed under Cool Gadgets, Electronic Hacks

50,000V High Voltage Power Supply Build_2 


 built this interesting 50,000V High Voltage Power Supply which is fun but can be dangerous if not given the respect that high voltages demand. If you are interesting in getting some serious spark jumping action this build is for you. Best of all the main component can be found for free from an old TV.

“This high voltage power supply has been designed to output a fixed voltage of around 50kV, it could easily be converted to an adjustable supply by connecting a variac in case of using transformers or by adding some extra circuitry to regulate the power going in. I initially thought about a high frequency PWM to regulate the power going into the capacitors, but I abandoned the idea. I found that adjusting the frequency is enough to make the voltage vary by a significant amount, allowing some control over it, this happens because the flyback must operate at a certain frequency in order to maximize the output.”



50,000V High Voltage Power Supply Build

August 27, 2015

Dobot – Robotic Arm

at 10:38 pm. Filed under Complex Hacks


The Dobot is an interesting robotic arm platform that has lots of cool uses.

“The High Accuracy how easy for our M-1X to carry the small screwdrivers with full accurate strikes! Various Controlling Methods it could be controlled by via 6 ways including mouse, mobile APP, EEG, voice, leap motion and gestures. M-1X can read It support the VI system. Red or green? You decide! “


August 25, 2015

Repair Broken IC Pins using a CO2 Laser Cutter

at 8:45 am. Filed under Electronic Hacks

  Repair Broken IC Pins using a CO2 Laser Cutter_2 


If you have an IC with broken pins near the die normally this chip is dead but if you have a CO2 laser cutter and a bit of time you might be able to laser away some of the die so you can access the internal chip traces. Have a look at ca.rstenpresser.de for some ideas.

“Since a few of the Pads already were delaminated I decided to do a repair instead of soldering in a new CPU. For a repair I would need to get rid of the expoxy mold to directly acces the pins of the leadframe. Initially I was thinking of using a ‘dreml’ tool to remove the exoxy, but watching the Uncaging Microchips talk at 31C3 taught me that using a CO2-Laser will also work.”



Repair Broken IC Pins using a CO2 Laser Cutter_4


Repair Broken IC Pins using a CO2 Laser Cutter


Repair Broken IC Pins using a CO2 Laser Cutter_3

August 24, 2015

DIY Camera Slider

at 1:26 pm. Filed under Cool Gadgets

DIY Camera Slider


If you want to amp up your picture taking options a camera slider could be a great option. Purchasing one can be expensive so why not build your own.  has built this one with a great list of required parts and a guide to make it. 




August 22, 2015

Name the Thing Contest – 287

at 1:24 pm. Filed under Contests



The prize this week is a HMC5883L Triple Axis Compass Magnetometer Sensor so you can add some directionality to your next project. This contest will run for one week (Aug 22 – Aug 28, 2015). 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 Dec 6, 2015

The item to guess was a Sundial/Compass.

The winner is Michael A.  (there were 116 entries)


Below is a picture of the prize.




Fun with ESP8266 and WS2812B LEDs

at 12:58 pm. Filed under Cool Gadgets, Crazy Hacks


CNLohr has been playing with the popular addressable WS2812B LED lights and the powerful (and cheap) ESP8266. In these videos he discusses how to optimize their usage together and provides full source code to get a foot hold on your own experiments.


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