Ultrasonic Range Finder XL-Trashsonar-WR MB7139

Introduction

The MB7139 XL-TrashSonar-WR1 is a weather resistant sensor designed for trash bin level measurement. The MB7139 XL-TrashSonar-WR1 reports the range to the first detectable target in a trash bin. This sensor is our most recommended sensor for testing within trash bins.High output acoustic power combined with continuously variable gain, real-time background automatic calibration, real-time waveform signature analysis, and noise rejection algorithms results in virtually noise free distance readings. This holds true even in the presence of many of the various acoustic or electric noise sources. The XL‑TrashSonar‑WR sensors are factory calibrated to match narrow sensor beam patterns and provide reliable mid-range detection zones. MB7137 is the I2C version of this sensor.

Recommended Product for WR series
F-Option

Note: The F-Option design modification provides weather resistant sensors with extra protection against corrosive chemical environments.

Specifications

• Resolution of 1 cm
• Up to 10Hz read rate
• 42kHz Ultrasonic sensor measures distance to objects
• RoHS Compliant
• Read from all 3 sensor outpus: Analog Voltage, Pulse Width, RS232 serial
• Operates from 3.0-5.5V
• Low 3.4mA average current requirement
• Small, light weight module
• Designed for easy integration into your project or product
• Operational Temperature from -40˚C to +65˚C (-40˚F to +149˚F)
• Real-time automatic calibration (voltage, humidity, ambient noise)
• Firmware filtering for better noise tolerance and clutter rejection
• 200,000+ Hours Mean Time Between Failure
• Weather Resistant (IP67), optional Chemical Resistant F-Option
• Matches standard electrical pipe fittings for easy mounting
• Maximum range of 350 cm (138 inches)
• Fastest reporting TrashSonar
• Compatible with up to a 400KHz I2C Bus Speed
• Mid-range, narrow detection zone

Multiple Sensor Reference Wiring Diagram
Adding additional sensors to the I2C bus is extremely simple, as long as each sensor is programmed first to a different address and the bus capacitance is low enough for the pull-up resistors to work properly. GND, V+, SCL and SDA simply need to be connected to the existing wires that the bus operates on. Each sensor can then be addressed individually to perform a range finding cycle or return the range data.
Note: For more detail refer datasheet.

Dimensions

Documents

I2CXL-Trashsonar-WR sensor datasheet
I2CXL-Trashsonar-WR sensor Beam width explanation
Maxbotics FAQ

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