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Ultrasonic Range Finder - XL-Maxsonar WR1

by SparkFun
Price: $126.40



Product Description


Description: This is the new, weather resistant, field-hardened WR1 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 WR1 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.



Mounting hardware
is also available, designed specifically for this device.



Features:




  • 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



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