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→Arduino Frequency Counter
== '''Arduino Frequency CounterSelf-Tuning Analog Radio''' ==
[[Image:http://interfacewww.khmtarantulahawk.deorg/indexbraden/tunerOPEN.phpjpg]][[Image:http:/lab/experimentswww.tarantulahawk.org/arduino-frequency-counter-librarybraden/tunerLOW.jpg]] In many applications involving computers and radio electronics, it is necessary to have a "Frequency Counter" as a piece of test equipment amongst your arsenal of tools[[Image:http://www. A frequency counter counts the number of alternations a signal has during a short time period, and displays the frequency of the signal in a numerical formattarantulahawk. With the proper scaling and conditioning, a frequency counter can be used to show the frequency of a radio transmitter, a note of a piano, the rotational speed of an engine, amongst many other thingsorg/braden/tunerHIGH.jpg]]For the sake of art projects, it might be necessary to count the number of "pulses" that a sensor receives, and have that number available inside of a computer for use by another program[[Image:http://www.My personal interest in this technology (with respect to my project) stems from a need to count the rotations of an engine in order to accurately control its speedtarantulahawk.org/braden/tuning.jpg]]
