Hacked Gadgets Forum

May 22, 2015

Bug in Code Requires Boeing 787 Dreamliner to Reboot at least every 248 days to stay Flying

at 11:35 pm. Filed under Insane Equipment

 

The Dreamliner is a great looking plane and is full of the latest technology but like any other piece of sophisticated technology there is a lot of code behind the scenes keeping things working. Bug in Code Requires Boeing Dreamliner to Reboot at least every 248 days to stay Flying! If you have ever taken even an introductory programming class you will have probably seen the effect of integer math overflow. If you increment an integer one more time past the largest value it can hold it will overflow. This results in the new value being smaller than the previous value. This can result in strange scenarios that can cause issues if not checked for. There are many systems that had roll over issues 15 years ago (Y2K) when systems with 2 digit year representations reverted to the year 1900. Even the loved Unix time base is based on the number of seconds that have elapsed since January 1st 1970. This means that every day the Unix time increased by a count of 86400 since January 1st 1970. This also means that the 32 bit signed int will overflow in 2038.

I can understand how this type of bug got slipped into the plane code, I am just not sure how it remained uncaught. I would hope there would be very strict line by line code review where bound checks would have been tested. At least it was caught before it caused an accident and it will now be a reminder how important every bit of code it. At least if there is an issue in the air with the backdoor a skilled hacker might be able to hack into the system and bring things back online. :)

 

Bug in Code Requires Boeing 787 Dreamliner to Reboot at least every 248 days to stay Flying_2


April 29, 2015

Robots Pulls up to 2,000 Times Its Weight

at 9:05 pm. Filed under Cool Gadgets, Insane Equipment

 

This Robots Pulls up to 2,000 Times Its Weight! It is tiny like an insect and like many insects they can control massive amounts of weight in comparison to their weight. We need to see this technology applied to dragsters, say goodbye to wheel slip. 

Via: TheVerge

 “The super-strong bots – built by mechanical engineers at Stanford University in California – will be presented next month at the International Conference on Robotics and Automation in Seattle, Washington.

The secret is in the adhesives on the robots’ feet. Their design is inspired by geckos, which have climbing skills that are legendary in the animal kingdom. The adhesives are covered in minute rubber spikes that grip firmly onto the wall as the robot climbs. When pressure is applied, the spikes bend, increasing their surface area and thus their stickiness. When the robot picks its foot back up, the spikes straighten out again and detach easily.”


April 19, 2015

BB-8 Robot

at 12:13 pm. Filed under Complex Hacks, Insane Equipment

BB-8 Robot

 

 The BB8 Robot looks amazing, there is a lot of discussion how it is done. My bet is that there is a heavy drive mechanism in the marge sphere with an arm that can turn and tilt, This is them magnetically coupled to the top piece which simply sits on wheels.

 

BB-8 Robot_2

 

 


April 14, 2015

Thin Film Resistor Networks

at 10:34 am. Filed under Insane Equipment

 

Dave take a close look at Thin Film Resistor Networks. These are used in various precision electronic gear where extreme precision is needed. This one is from a Keithley DMM7510 7.5 Digit Multimeter and is stamped Fluke, I didn’t now that both companies were owned by Danaher. You may have seen a similar resistor trimming design on a large scale if you have ever purchased a high current monitor shunt except they use a hack saw to cut through the metal strap before painting to dial it into spec.

March 30, 2015

Making and Hacking the Nissan GTR

at 8:53 pm. Filed under Complex Hacks, Crazy Hacks, Insane Equipment, What Were They Thinking

Making of the Nissan GTR

 

 Interesting how Nissan has gone through some massive ups and downs over the years. In the end it took a non Japanese to pull the car manufacturer out of the red. They are now mass producing an incredible super car. The car is beautiful but the hackable tech under the hood is what makes it stand out. The Nissan GTR has been designed for high performance for people with normal driving skill. The car computer can allow you to launch with amazing control and precision allowing this car to compete with very skilled drivers. The guys over at EcuTek International build on the incredible platform and enhance the options available (seen in the video below).

 

 

 

 


March 24, 2015

Super Fast 3D Printer – Carbon 3D

at 3:16 pm. Filed under Cool Gadgets, Insane Equipment

 

3D printing technology has come a long way over the past few years. The speed and strength of the prints is what has made me think twice about purchasing one. The speed and strength issues has changed with the introduction of the Carbon 3D system.

 “UV light triggers photopolymerization and oxygen inhibits it. By carefully balancing the interaction of light and oxygen, CLIP continuously grows objects from a pool of resin.

CLIP moves beyond the limitations of 3D printing to offer unprecedented speed, quality, and choice.”

 

 

 

March 10, 2015

Crocs Drone Delivery system

at 9:24 pm. Filed under Complex Hacks, Crazy Hacks, Insane Equipment

Crocs Drone Delivery system 

 

Crocs are comfy shoes but picking them out in the store might be a bit challenging. First you might have to walk through some aisles, then you might need to speak to a customer representative for your size. Until we can have Amazon drop your new pair of Crocs on your doorstep we can have a drone pick and drop your favorite selection to you. Of course this is not practical but does show some interesting concepts that will be common when this technology drops in price. 

Via: Engadget and IEEE Spectrum

 

 

 

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