Hacked Gadgets Forum

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 21, 2015

Reflow Part Melting

at 10:54 am. Filed under Educational, Electronic Hacks

 

You need to be careful when reflowing parts on your circuit boards. Different plastics can lead to a bad day for you parts. If a part was just meant to be wave soldered the actual part may not be capable of the extreme heat and duration of the reflow process. Dave found this out the hard way when he was attempting to reflow a board from a TV that was being repaired.

 


August 3, 2015

Electric Vehicle Kit That Can Be Built in a Week

at 10:04 am. Filed under Complex Hacks, DIY Hacks, Electronic Hacks

Electric Vehicle Kit That Can Be Built in a Week

 

This The Switch Lab electric vehicle kit is designed for students to build it in a classroom. It comes with everything you need to build a sporty electric vehicle in about one week. The kit starts at around $20K and is designed to be built by one class and then stripped back down for the next class to build. The basic model comes with lead acid batteries, the higher models some with lithium ion batteries. The open chassis design is perfect for learning since there are no body panels to work around and obstruct the important bits that make the vehicle work.

Via: Make 

“The SWITCH Lab was designed to allow the instructor complete flexibility in the classroom. We provide over 30 hours of lecture material and 40 plus hours of lab projects, including the assembly of The SWITCH electric vehicle. Instructors can include our lectures as presented, skip some, augment others, or create their own. The class can be taught as an intense two week summer program or 17 week semester program or anything in between.”

 

 

 


July 20, 2015

A look inside a 10GHz Microwave Link

at 12:38 pm. Filed under Cool Gadgets, Electronic Hacks

 

Mike takes apart a 10GHz Microwave Link. You can see that this is a really precision piece of equipment, the wave guide piece is very interesting. Not sure what the cost of this is but I can guarantee it would not be cheap. There is quite a lot of electronics on the transmitter which as you would expect is very nicely laid out, there is obviously a lot of things that have been taken into account here, the via stitching at 8:35 is interesting since there are different size holes used and there are also strange snake like patterns. This type of high frequency stuff is sure exotic when comparing it to what I would consider the basic electronics that I see on a daily basis. 

 

 

July 15, 2015

PIC24 Dev Board Design

at 5:05 pm. Filed under Electronic Hacks

PIC24 Dev Board Design

 

Dev boards are great when trying to get a high pin count (non DIP package) microcontroller prototyped for your next project. There are some SMD breakout boards (you can see one of those in the picture connected to his dev board). But working with just a breakout board can be a bit of a pain since the connections to the board can be hard to maintain since the package is so small. If you are in need of a breakout board for a PIC24 this might be just what you need.

Via: Dangerous Prototypes 


June 27, 2015

CRT TV Flyback Transformer High Voltage Power Supply

at 1:48 pm. Filed under Cool Gadgets, Electronic Hacks

  CRT TV Flyback Transformer High Voltage Power Supply_2

 

We have seen lots of interesting projects made for little money using scrap electronics like Microwave Ovens, for this project you will need a piece from another throw away item, a CRT TV.  This CRT TV Flyback Transformer High Voltage Power Supply by Robert Gawron is cheap and easy to build since the main part can be found for free in a discarded old TV. It sure makes for a crazy looking jacobs ladder.

“Old CRT monitor or TV is a great source of electronic components that can be used in DYI constructions. One of them is a flyback transformer that can provide 10-30kV output. The input voltage can be in a range from a couple of volts to over a dozen of volts, power consumption is a couple of watts. In my construction input voltage is 9V, power consumption is 5W.”

 

 

CRT TV Flyback Transformer High Voltage Power Supply_3

 

CRT TV Flyback Transformer High Voltage Power Supply

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.

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