Ultrasonic Range Finder - XL-MaxSonar-WR

This is the new, weather resistant, field-hardened WR from Maxbotix. The XL series of this sensor features higher resolution, longer range, higher power output and better calibration when compared to the LV version.

The WR uses a robust PVC housing, is designed to meet IP67 water intrusion, and matches standard electrical 3/4" PVC pipe fittings. The sensor provides very accurate readings from 0 to 765cm (0 to 25.1ft) with 1cm resolution. This sensor can be powered with anywhere between 3.3 and 5VDC.

Range information can be gathered through one of three methods - analog, serial, or PWM - all of which are active at the same time. The analog output will produce a voltage proportional to the measured distance, with a sensitivity of (Vcc/1024)V/cm. The serial interface is simple and formatted to RS-232, with voltages ranging from 0 to Vcc and terminal settings of 9600-8-N-1. Finally, the PWM pin outputs a pulse-width representation of the range with a scale factor of 58us/cm.

Note: The High-Resolution version of this sensor is now available so this one is being discontinued. We're now selling them at a reduced price so get them while you can! The High-Resolution version can be found here.

  • 3.3V to 5V supply with very low average current draw
  • All interfaces are active simultaneously
    • Serial, 0 to Vcc
    • 9600 baud, 8-N-1
    • Analog, (Vcc/1024) / cm resolution
    • Pulse Width
  • High acoustic power output
  • Real-time auto calibration and noise rejection for every ranging cycle
  • Precise narrow beam
  • Continuously variable gain
  • Object detection includes zero range objects
  • Readings can occur up to every 100mS, (10-Hz rate)
  • Free run operation can continually measure and output range information
  • Triggered operation provides the range reading as desired
  • Sensor operates at 42KHz

Ultrasonic Range Finder - XL-MaxSonar-WR Product Help and Resources

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1 Soldering

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2 Programming

Skill Level: Rookie - You will need a better fundamental understand of what code is, and how it works. You will be using beginner-level software and development tools like Arduino. You will be dealing directly with code, but numerous examples and libraries are available. Sensors or shields will communicate with serial or TTL.
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