Read the AN Output Using a Multimeter
A Brief Description of the AN pin.
The analog voltage pin outputs a voltage which corresponds to the distance. The
further away an object is from the sensor the higher the output voltage becomes
which in turn will be measured by the multimeter. The sensor is designed to report
the range to the closest detectable object.
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M A X B O T I X
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Calculating the Voltage Scaling
Because the LV-MaxSonar-EZ1 output is scaled to the input power that is provided to
the sensor, it is important to know the voltage scaling before calculating the range.
The formula for the voltage scaling on an LV
‑
MaxSonar
‑
EZ1 is:
[(Vcc/512) = Vi]
Vcc = Supplied Voltage
Vi = Volts per inch (Scaling)
Example 1: Say you have an input voltage of +5.0V the formula would read:
[(5.0V/512) = 0.009766V per inch = 9.766mV per inch]
