Hacked Gadgets Forum

July 15, 2013

Stage Platform Robot

at 2:44 am. Filed under Complex Hacks, Computer Hacks, Cool Gadgets, DIY Hacks, Electronic Hacks


Chris Rybitski just shared his latest project with us, it’s a Stage Platform Robot. It is a way to remotely move stage items around. He built a 9 inch tall robot that can drive around with 900 pounds on its back. He built the majority of the metal frame from square tubing that has been welded together. There is an Arduino controlling the robotics and a speed controller that is able to effectively drive the large wheel motors. The user controls the system using a  laptop computer that talks to the platform using a wireless router. The system has some well thought out safety systems such as a proximity sensor that prevents it from running off the stage. This system reminds me of the Amazon robots.

Normally when things need to be manipulated on the stage there is an elaborate setup of winches and cables to pull things into place. This involves some serious preparation. This system will eventually have the ability to be programmed to be commanded to predetermined stage positions, currently the operator remotely drives it into place. If you have some need for something similar be sure to have a look at the code which is available at the bottom of this page.



June 23, 2013

PiMiner Bitcoin Mining System

at 11:54 pm. Filed under Computer Hacks, Cool Gadgets, DIY Hacks

PiMiner Bitcoin Mining System


Are you feeling the hype of Bitcoin yet? Instead of having a full blown computer mining your fortune in Bit Coins why not make solution that can fit in your pocket? The PiMiner Bitcoin Mining System uses USB miners that simply plug into USB ports on the Raspberry Pi.

“Building this project will allow you to use a Raspberry Pi as a ‘headless’ controller and status monitor for your USB bitcoin mining devices. The project incorporates an LCD to display hashrate, error rate, share data, network difficulty, as well as total mining duration/uptime.”

May 28, 2013

Hand Controlled Tetris Like Game

at 9:35 am. Filed under Complex Hacks, Computer Hacks, Electronic Hacks


This Hand Controlled Tetris Like Game uses an Altera FPGA to captures a video signal and looks for a players hand skin color. The system tracks their hand movements and looks for the user moving their hands forward and back by determining how tall the skin colored object is over time. The goal here is to prevent the falling tetris like blocks from falling by rapidly pushing and pulling on them. If you want to use this as a starting point for your creation Tian Gao has documented the entire system here.

Thanks for sending this in Tian!

May 22, 2013

Alert Tube – Monitor anything on the Net

at 6:58 pm. Filed under Computer Hacks, Cool Gadgets, DIY Hacks, Electronic Hacks

 Alert Tube - Monitor anything on the Net


 If you are tied to your cell phone to monitor weather, calendar events and stocks, the Alert Tube could be the next gadget you need. Michael Watson built is around a Raspberry Pi, it monitors the net for events that you choose and alerts you by light patterns, text to speech or sounds. You can see the entire project build details here.

“The Alert Tube is an open source information appliance that connects wirelessly to the Internet of Things in the cloud. The user interface is dead simple, it communicates data via customized colored light sequences, sounds and text to speech.

The idea for the Alert Tube came from something simple, a clock. You don’t have to turn it on, or boot it up and request information, it simply tells you the time, all the time, without you having to ask. That’s the idea behind the Alert Tube. You tell it what you want and then it continuously displays and/or emits audible information, without you having to ask. Simply walk by and take a glance at it or listen for any important alerts. Set it and forget it!”


April 20, 2013

Keyboard Chair

at 4:10 am. Filed under Computer Hacks

_Keyboard Chair


Doesn’t look all that comfortable but this Keyboard Chair sure is unique. I am curious where all the keyboards came from? I hope they were salvaged but they were probably purchased for this sculpture. They should have completed it by mounting a right and left side of a split keyboard on each of the arm rests. The chair could then have a single keyboard USP jack and actually be used to type.

Via: Adafruit


March 29, 2013

Mantis Hexapod Walking Machine by Matt Denton

at 3:07 pm. Filed under Complex Hacks, Computer Hacks, Crazy Hacks, DIY Hacks, Electronic Hacks, Insane Equipment, What Were They Thinking

Mantis Hexapod Walking Machine by Matt Denton _7


We have featured Matt Denton’s hexapod designs in the past. He has been spending some time working on a project that is a bit bigger than the previous ones! His new design which has been 4 years in the making called Mantis is a Hexapod Walking Machine. He has taken lots of pictures in the Facebook page (a few can be seen below). This video done by Daily Planet talks about Matt and his machines.

“After four years intensive R&D, inspiration, design and build, Micromagic Systems is proud to unveil Mantis — the biggest, all-terrain operational hexapod robot in the world.

This 2.2-litre Turbo Diesel-powered, British-designed and -built walking machine can be piloted or remote WiFi-controlled, stands 2.8 metres high with a five meter working envelope and weighing in at just under two tonnes.”




March 16, 2013

NAND Gate Computer

at 11:59 pm. Filed under Computer Hacks, Electronic Hacks

 _NAND Gate Computer_4


NAND Gates are very versatile. You might remember back in the TTL days when you were out of a specific chip you could always grab a NAND chip out of the bin and re-purpose it to work. This NANDputer looks like it would be a bit harder to troubleshoot than the one that I am using to write this on!

“While the CPU architecture is fairly conventional, the way it is implemented isn’t.  I went with a bit-serial setup on here to save gates.  The ALU for example is only 1 bit, with a “latching” carry so operations are performed a bit at a time on the 8 bit registers/memory.  The program counter is also bit-serial, and on the first youtube video you can see the carry propagating during the incrementing of it.

The downside of course is that this is much slower than a parallel architecture, but this way takes vastly fewer gates.  It takes 96 clock cycles to run a single instruction:  There’s 16 “T” states and 3 non-overlapping clocks generated using a 6 stage johnson counter with some NAND decoding.   (The flipflops that form the johnson counter are made from NANDs too).  Thus, it’s 16*9 or 96 cycles per instruction.  The clock runs at 10MHz, so this is a bit over 100KIPs (thousands of instructions per second).  This sounds really slow but it isn’t TOO slow.  It’s faster than a TMS1000, and it’s only 2-3x slower than a Commodore 64 which I estimate at 250-300kips when it runs at 1MHz (3 and 4 cycle instructions being some of the more common ones).”



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