Hacked Gadgets Forum

May 22, 2016

Spring 2016 Cornell University ECE 5760 Advanced Microcontrollers Final Projects

at 8:09 pm. Filed under Cool Gadgets, DIY Hacks, Educational, Electronic Hacks

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It is that time again! There is a new batch of Cornell University ECE 5760 Advanced Microcontrollers Final Projects. If you have done any PID work in the past the FPGA controlled Magnetic Levitation by Gautham Ponnu, Ryan Land, Nathan Spallone should be of interest. They are using a Altera DE2-115 FPGA board to monitor and control a steel ball about 1mm above the position sensor with great accuracy.
“The LDC1000 inductive sensor from Texas Instruments. This device acts as a mini “metal detector” and tells us, albeit in a nonlinear fashion, the height of the ball. The output is nonlinear because it is measuring the presence of metal through inductance, not the direct elevation of the ball from the sensor.”

 

entire_sch

 


May 17, 2016

SOLAR Powered Plane

at 8:15 pm. Filed under Complex Hacks, DIY Hacks

 

Prometreus has a great concept here. This plane has autopilot and a camera to capture the trip. With a 6 hour 200km range you can certainly cover a huge area.

“A SOLAR powered RC plane flies over 6 hours, only powered by the sun. The plane travels a distance of over 200km. It is self sufficient like the solar impulse system. ”

 

 


May 16, 2016

DIY Spotwelder

at 3:51 pm. Filed under DIY Hacks

 

 

If you do any metal work projects there will come a time when you would like to bond some metal together without using mechanical fasteners. Easiest way to do this is by welding, a spot welder is a type of welder that is simple since there are no welding rods needed. Make it Extreme built this great looking DIY unit. A high current is simply passed through the two metals in one spot allowing them to heat up and fuse together. Best of all the main component that is used is a MOT (microwave oven transformer), these can be scavenged from a discarded microwave for free. The main portion of the build is the structure that allows the unit to be free standing and operated by a convenient foot pedal.


May 14, 2016

Drawing To Laser Engraving System

at 8:04 pm. Filed under Computer Hacks, DIY Hacks

Drawing To Laser Engraving Program_4

 

When it comes to converting something drawn to a laser etched image there are often quite a few steps needed. Martin Raynsford has built this Drawing To Laser Engraving System to allow him to easily go from drawing to laser etched images by using a bit of hardware and some custom software. Of course you can do this type of thing manually like was done in the Halloween Hanging Mobile Project many moons ago but there is something great when the process is automated.

“The third and final project from this years maker faire was a webcam capture program that would easily digitize children’s drawings and then send them down to the laser cutter for engraving. The webcam holder with led lighting to illuminate the drawing. I used a c# wrapper for the open CV library to capture images from the webcam, a little bit of filtering to remove pixels that weren’t black enough. The image was then converted to G Code, and transferred to a GRBL controller that was wired into the Greyfin laser cutter. The G Code simply drives the laser to the next black pixel and burns a single dot for each pixel, repeat for each black pixel in the image.”

 

May 6, 2016

Digital Caliper Data Plug Build

at 12:14 am. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

 

Bob over at Making Stuff didn’t want to purchase an expensive cable for his digital calipers, instead he decided to build it. A small 3D printed grooved part with a few connected wires is all that is needed to connect to the data output port of the calipers. A logic level converter is needed to change from 1.5 volt output of the calipers a voltage high enough for a solid logic level 1. Now this can be used as a precision measurement input on a microcontroller project.

 


May 2, 2016

Laser Transmits Audio Over 100m

at 4:24 pm. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks

 

If you are looking to send some data or some audio over a fairly long distance wirelessly you can have a look at this very cheap solution if line of site will work. Iforce2d is using a very inexpensive laser diode and receiver to get the job done. This code is what does the heavy lifting as far as getting the data across the link.

 

 

April 28, 2016

Table Tennis Trainer Project

at 9:35 pm. Filed under Complex Hacks, Computer Hacks, Cool Gadgets, DIY Hacks, Electronic Hacks, Game Hacks, Insane Equipment

interactive_table_tennis_trainer_by_thomas_mayer_1

 

If you enjoy table tennis this trainer might be a great next project. Thomas Mayer created this as his bachelor thesis project. Two Playstation CL-eye cameras are used to view the play area and track the ball. A project is then used to display game elements that the players can interact with to play many game scenarios. The game was created using VVVV which is a visual/textual live-programming environment for easy prototyping and development.

Via: Technabob and Gizmodo

“The basic idea of my bachelor thesis was to track the ping pong ball in realtime to create data visualisations for trainers and players. After a few weeks of working I started developing a projected mapped interface for the ping pong table to show the collected data. By projecting game obstacles on the surface I figured out that I can change the game play totally.”

 


 

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