MAXBOTIX MaxSonar Quick Start Manual Download Page 7

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M A X B O T I X

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Additional Considerations 

Please note that if you are using a sensor from the HR-MaxSonar, XL-MaxSonar-EZ,
XL-MaxSonar-AE, XL

MaxSonar

WR, or XL

MaxSonar

WRC series the voltage scaling

will not match that of the LV

MaxSonar sensors. To find the voltage scaling of your

sensor reference the product datasheet. 

Analog Voltage scaling for all of our product lines can be seen in our Using Analog
Voltage (Pin 3) tutorial. This tutorial also includes examples for using the Analog
Voltage output, as well as integrating with a 10

bit Analog Digital Converter. 

Please note the sensor resolution, for the LV-MaxSonar-EZ1 the resolution is one inch. 

The LV-MaxSonar-EZ will, in general, range objects from 0 to 6 inches as 6 inches.
Which corresponds to 58.6mV when powered at +5V DC. 

The LV-MaxSonar-EZ provides range for objects up to 254 inches away. Sensor will
report the closest detectable reflection from an object as defined by the sensor
beam pattern. You may view the beam pattern for the LV-MaxSonar-EZ here. 

Summary of Contents for MaxSonar

Page 1: ...sor outputs MaxBotix Inc is excited to provide this guide which is designed to assist you in using your MaxSonar sensor for the first time This quick start guide was created using the LV MaxSonar EZ1 MB1010 sensor List of Commonly Used Equipment 1 Power Supply 2 Multimeter 3 Wires 4 LV MaxSonar EZ1 or one of the other MaxSonar products 5 Large flat target such as a box MaxSonar Quick Start Guide i...

Page 2: ... ON the power supply set the voltage to 5 0V DC Volts Direct Current 3 Turn OFF the power supply 4 Connect the ground from your power supply to the GND pin on the LV MaxSonar EZ1 5 Connect your power supply to 5 pin on the LV MaxSonar EZ1 6 Turn ON the power supply verify that the voltage is between 2 5V and 5 5V The LV MaxSonar EZ1 input power should be 5V DC This system can operate from 2 5V to ...

Page 3: ...e ground on your power supply or 2b Connect the ground lead of the multimeter to the GND pin of the LV MaxSonar EZ1 To do this we used a paperclip attached to the ground of our power supply 3 Connect the power lead of the multimeter to the pin labeled AN on the LV MaxSonar EZ1 To do this we used the yellow banana clips to run from the AN pin to the multimeter probe 4 The display should read the vo...

Page 4: ... 218 454 0766 MAXBOTIX info maxbotix com 4 A Picture of Our Setup ...

Page 5: ...e range to the closest detectable object 218 454 0766 MAXBOTIX info maxbotix com 5 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 Scalin...

Page 6: ...ling Ri Range in inches Example 2 To get comfortable with this equation use a known distance by using a ruler Say the multimeter shows 292 98mV then you use the calculations as follows 292 98mV 9 766mV 30 inches Example 3 To work backward and verify your calculation is correct use the inverse formula Ri x Vi Vm 30 x 9 766 292 98 218 454 0766 MAXBOTIX info maxbotix com 6 ...

Page 7: ... Using Analog Voltage Pin 3 tutorial This tutorial also includes examples for using the Analog Voltage output as well as integrating with a 10 bit Analog Digital Converter Please note the sensor resolution for the LV MaxSonar EZ1 the resolution is one inch The LV MaxSonar EZ will in general range objects from 0 to 6 inches as 6 inches Which corresponds to 58 6mV when powered at 5V DC The LV MaxSon...

Page 8: ...nar EZ sensor output pin 3 For the AN pin the following code example is provided for reference BasicX Code Example Read the AN pin Analog Voltage with a Microcontroller 1 Ensure proper microcontroller voltage scaling 2 Ensure proper voltage scaling of the LV MaxSonar EZ 3 Use the proper formula for calculating the distance from the voltage that is read Reference the sensor datasheet Please note If...

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