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Security Revealed
Archive for December 31st, 2010
Building a security access panel
Posted in December 31st, 2010
It turns out that hacking together a security keypad is remarkably simple if you know what you’re doing. [Don] needed to add a keypad with an RFID reader on it. He had previously built a USB RFID reader and thought he could integrate those concepts into the new unit. He once again started with a [...]
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Shutter remote for RICOH cameras
Posted in December 31st, 2010
[Toby] wanted to have a remote shutter trigger for his RICOH GR III camera. This brand doesn’t have a dedicated port for remote operation but a bit of research allowed him to build his own trigger. The camera’s USB port is used for triggering but not using the USB protocol. Instead, a pulse pattern on [...]
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Arduino EMF sensor
Posted in December 31st, 2010
As a biomedical equipment technician [Adam Outler] equipment needs to be in top working condition. The emergency room staff were complaining about erroneous noise on the electrocardiogram and it’s his job to fix it. He suspected EMF interference so as a quick first step he decided to throw together an EMF detector using an Arduino. [...]
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How To Avoid Getting Fired From Your Own Company
Posted in December 31st, 2010
If you start a company, it will probably happen to you someday. Maybe it will be your VC or a board member. Maybe it will be your co-founder.
Sooner or later, they’ll try to fire you.
I’m an investor in or advisor to dozens of startups, and at least once a quarter, I get the call: “Chris, they’re trying to fire me.” (The other urgent call I get is when they’re negotiating a financing round, merger, or sale. I much prefer those calls!)
Most entrepreneurs are surprised the first time their investors or co-founders try to fire them. They can’t imagine being banished from the company that they created. Maybe they were the only employee of the company for years. Maybe they recruited and courted the very person who comes to carry out the execution.
The sad fact is, founder firings are the rule, not the exception.
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Fabricating a music-controlled stoplight
Posted in December 31st, 2010
[Andrew] built himself a stoplight that flashes along with the music. Unlike the traffic signal we checked in on a year ago, this one’s not a reused municipal fixture. [Andrew] imported a 3D model into Sketchup, printed out the results, and traced them onto Bristol board to make his templates. He cut out the parts, [...]
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