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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Making the Connection

Making the Connection

I’ve had mixed success with micro controller cable interconnects.  My first experiences at wiring was humble.  I leaned heavily on standard 3mm audio jacks due mainly to the low learning curve.   As my projects became more complex, the limitations with this became clear. Simply doing a search for Molex on Google will reveal the dilemma that the newcomer has to face.  I couldn’t make the connection.  The endless sea of pitch, ratings, conductor type, latch types, etc. just made the…

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