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Month: January 2014

Making the Connection 2

Making the Connection 2

Sourcing specific low voltage signal cabling and connectors has proven to be more of a challenge than finding sensors or micro controllers.  The hunt for a one stop shop that offers flexible black cable with various conductor counts at 22 AWG is turning up nothing.  All Electronics looked the best option but I was able to find a local seller (DataPro) in Seattle, WA.  Three other sources looked promising, one that I had already used before.  Here is a list…

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Sound – The early wireless communication protocol

Sound – The early wireless communication protocol

Air pressure, defined by the popular perception of the meaning is the amount of air in your car tires.  A meteorologist would be inclined to refer to it as atmospheric pressure, which is measured with a barometer.  However, the physicist might say that the air molecules are repelling each other at a static rate until an outside force acts on them.  All of these groups are correct. In short, air is a soup of various molecules of gas, liquid, and…

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Sniffing the Planet Bike Blaze 1W Headlight

Sniffing the Planet Bike Blaze 1W Headlight

I decided to see if the Planet Bike Blaze 1W Headlight had some PWM going on behind the scenes. It seemed to me that the logic analyzer would be perfect for this task.  I was actually surprised by the results.  One thing that I did decide on was using different test equipment in succession so nothing got smoked. First test was using the voltmeter.  It could handle it, since the headlight was powered by 2 AA batteries in series, aka…

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