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tutorials:pic:pic18_adc_mpx4115a [2010/02/04 14:07]
Wade Falcon
tutorials:pic:pic18_adc_mpx4115a [2010/02/23 09:19] (current)
wadef
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The [[Motorola MPX4115A]] is a atmospheric pressure sensor powered by 5V and delivers and output from ~0.25V to ~4.75V based on the pressure detected at room temperature (25C).  As the pressure rises, so will the output of the sensor.  ~0.25V represents <15 kPa pressure relative to a vacuum and ~4.75V represents >115 kPa.  For example, 1 atmosphere of pressure at sea level is equal to 101,325 Pa or 101 kPa.  Notice the approximate voltages given.  See the graph below. The [[Motorola MPX4115A]] is a atmospheric pressure sensor powered by 5V and delivers and output from ~0.25V to ~4.75V based on the pressure detected at room temperature (25C).  As the pressure rises, so will the output of the sensor.  ~0.25V represents <15 kPa pressure relative to a vacuum and ~4.75V represents >115 kPa.  For example, 1 atmosphere of pressure at sea level is equal to 101,325 Pa or 101 kPa.  Notice the approximate voltages given.  See the graph below.
 +
 +//Before continuing, be sure to read through the [[ADC]] tutorial.//
{{:tutorials:pic:mpx4115agraph.jpg|MPX4115Agraph.jpg}} {{:tutorials:pic:mpx4115agraph.jpg|MPX4115Agraph.jpg}}
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