Hacked Gadgets Forum

September 5, 2017

PID Controller Theory

at 11:07 pm. Filed under Educational


 
 

Dave 2 over at the EEVBlog explains how PID works. Wikipedia also has some great info.

 
 

“A proportional–integral–derivative controller (PID controller or three term controller) is a control loop feedback mechanism widely used in industrial control systems and a variety of other applications requiring continuously modulated control. A PID controller continuously calculates an error value {\displaystyle e(t)} e(t) as the difference between a desired setpoint and a measured process variable and applies a correction based on proportional, integral, and derivative terms (denoted P, I, and D respectively) which give their name to the controller.

In practical terms it automatically applies accurate and responsive correction to a control function. An everyday example is the cruise control on a road vehicle; where external influences such as gradients would cause speed changes, and the driver has the ability to alter the desired set speed. The PID algorithm restores the actual speed to the desired speed in the optimum way, without delay or overshoot, by controlling the power output of the vehicle’s engine.

The first theoretical analysis and practical application was in the field of automatic steering systems for ships, developed from the early 1920s onwards. It was then utilised for automatic process control in manufacturing industry, where it was widely implemented in pneumatic, and then electronic, controllers. Today there is universal use of the PID concept in applications requiring accurate and optimised automatic control.”


August 28, 2017

DIY LIPO Battery Spot Welding

at 11:19 pm. Filed under Crazy Hacks, DIY Hacks

 

WeAreTheWatt is building a DIY LIPO Battery Spot Welding project. The construction is very nice. The PCB is very well laid out but of course even with a very heavy copper clad board it would not be able to handle the amount of current he needs. Heavy bus bars are used to pass the current through the fuse and across the switching transistors. There is a foot pedal activation method or a neat self detection method which watches for the leads being pressed against the thing to be welded and then passes the desired amount of energy.

 

 

 


August 19, 2017

Laptop Hacked into a Cool Desktop PC

at 11:11 pm. Filed under Computer Hacks

 

 

DIY Perks hacked an old damaged laptop into a great looking desktop PC. The PC used has a damaged screen and was purchased for just $15. The guts were removed from the plastic laptop case but when exposed the tiny existing processor fan and heatsink was very loud. Replacing the fan and heatsink with a larger unit the system is now silent. The end result is a great looking veneered piece of art that also functions as a PC.


August 8, 2017

Naomi ‘SexyCyborg’ Wu Electronic Clothing Designer

at 10:48 pm. Filed under Cool Gadgets, DIY Hacks

 

Naomi ‘SexyCyborg’ Wu is a Maker and hardware enthusiast from China. She uses a 3D printer to make clothing such as bras and custom electronic skirts. She has a Patreon if you would like to support her. Looks like open hardware and Hack a Day shirts are in regular rotation!

“I build FashionTech Wearables and other cool things then share the Open Source plans online, I write about life in Shenzhen and the local hardware community, I’m a 3D printing enthusiast, I try to encourage local women to become more technically proficient. I’ve done these things without any sort of compensation, just as a hobby for over two years- because I’m passionate about tech, making things and letting people know what life is like here. ”

 

 

 

August 1, 2017

Safe Cracking Robot

at 10:34 pm. Filed under Complex Hacks, Cool Gadgets, DIY Hacks, Electronic Hacks

 

 

We have seen safe cracking robots before but they never get old. The guys at Spark Fun made a great one. It would be funny to  see a CCTV video of a vault heist that uses some technology like this. The safe cracker could setup his rig and read a magazine while the technology did the hard work.

Via: Adafruit

 
“Nathan Seidle’s wife gave him this already locked safe as a gift with no combination. Weird present, but he loves a good challenge. So he built a safecracking robot.”
 

 


July 8, 2017

Infrared Transmitter Arduino Home Automation

at 7:37 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

 

Upgrdman shows us how to make an Infrared Transmitter Arduino Home Automation system. This system uses a very high power wide range IR LED so that it would be great to be placed in the general area of the equipment you would like to control. If you are interested in making your own the example code is provided.

“In this video I show an easy and low-cost way to do some home automation. I setup an Arduino with an infrared receiver and transmitter, then use it to control my television and a tower fan. This setup can be used to control pretty much anything that has an infrared remote, even air conditioners.”

 

 

 

 

 

June 21, 2017

Arbra Dynamite Exploder taken apart

at 8:54 pm. Filed under Insane Equipment

 

 

Bigclive shows us what is inside a Arbra Dynamite Exploder.  The unit is completely powered by the turn handle. It is actually quite nice since it will indicate that the circuit resistance is when the handle is spun. The max firing voltage is around 1000 volts. To fire you simply press the fire button as turning the handle while pressing the fire button. When the fire voltage is reached the unit dumps the built voltage onto the output to allow any pyro devises to be fired.

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