Hacked Gadgets Forum

April 25, 2017

Macbook Backlight Repair

at 11:41 pm. Filed under DIY Hacks, Electronic Hacks

 

Louis Rossmann shows how he walks through a Macbook Backlight Repair. As usual the scale of the repair is tiny and work under the microscope is needed. Some tiny jumpers and a steady soldering hand come to the rescue.

 


April 22, 2017

Power Supply Decoupling and Filtering

at 11:50 pm. Filed under Educational, Electronic Hacks

 

w2aew demonstrates the use of decoupling and filter cap usage. We have all seen large electrolytic caps and tons of small capacitors near chips on most circuit boards. Why are they used and without them what does the circuit look like. The live demonstration on the scope with the test PCB does a great job in demonstrating the difference with capacitor placement and operating without capacitors.

 


April 18, 2017

Pizza Box Robot That Shines a Laser in Your Eye

at 10:48 pm. Filed under Computer Hacks, DIY Hacks, Electronic Hacks

 
 

Michael Reeves is a software developer at Infibit that has made a face tracking robot that is housed in a pizza box, it tries its best to find your eyes and shine a laser in them. The software that runs on a PC was written in C# and uses Emgu CV which is the .NET version of Open CV for the facial recognition portion. A web cam is connected to the computer scans for a face to attack, when detected the coordinates are sent over a serial cable to a microcontroller.  The ATmega 328 microcontroller has a few servo motors connected to laser pointer. Since the servo motors can move the laser pointer in XY positions the coordinates are used to point where it needs to. The result will annoy you and your guests. I think this would be useful at popular store displays when you need people to move along after having a quick glance. If you are looking to build your own version you can find the code here.

 

 


March 7, 2017

Open Source Firmware for DPS5005 Power Supply

at 10:50 pm. Filed under Electronic Hacks

 

This DPS5005  Power Supply is a powerful compact unit. It has a ton of functionality as it is. Johan Kanflo wanted some more features though. He created an Open Source Firmware version for DPS5005 Power Supply to add those features.  Unfortunately the firmware was locked so it couldn’t be sucked out and examined / modified. The PCB has a serial port that is wired to the controller but is not active so it looks like they had a goal to allow this unit to be remotely controlled but never got to it or it might possibly be in a different version of the power supply. Johan reverse engineered how the controller operates the power supply hardware and developed new software to get the features working again but with a more intuitive feel. The serial port is also enabled allowing the power supply to be remotely interfaced with.

Via: Hackaday

“The reverse engineering of the DPS5005 can be summarised as “bring up of the STM32 based DPS5005 hardware and writing an application for it”. This is pretty much my day job but I always have the hardware schematics and the hardware design engineer at hand. This time, obviously, I had neither which was a bit more challenging. So where do one start? Looking at the PCB, I quickly found the serial port. That was a dud, completely silent. Fake port! I later realised the DPS5005 stock firmware does not even initialise the serial port. ”

 

February 15, 2017

UNI-T UT61E Backlight Touch Mod

at 2:57 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

 

 
CubeAMSPro100 has completed a UNI-T UT61E Backlight Touch Mod which adds some interesting features to the UNI-T meter. With a wave of a hand over the top of the meter he can now command the backlight to turn on or off. This isn’t a simple hack and it involved installing a custom PCB to handle the magic.

 


January 29, 2017

Arduino Controlled Industrial Stepper

at 11:36 pm. Filed under DIY Hacks, Electronic Hacks

 
AvE shows us that you don’t always need a complex expensive setup to drive industrial equipment. A simple Arduino setup is shown here to perform some simple stepper manipulation. The Arduino is connected directly to the Stepper driver which handles all of the complex microstepping etc. All the Arduino needs to do is enable it, chose a direction and pulse some steps at it. The result is a nice and simple repeatable system.

 

 

January 16, 2017

Heavy Lift MOT Magnet

at 12:03 am. Filed under Cool Gadgets, Electronic Hacks

 
There are lots of uses for MOTs (microwave Oven Transformers).  The guys from Make it Extreme have come up with a great new use. Convert them to a Heavy Lift Magnet. They take a number of transformers, chop the top off the laminated core and weld them to a heavy base plate. They are then wired to a common power source and the surface of the transformer that will touch the metal being lifted is machined flat. The only limitation that I can see is that not all of the transformer sections might be touching the metal object being lifted. The lifting capacity for some free MOTs is quite impressive!

Thanks for the tip Curt

 

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