Maxbotix XL-MaxSonar-EZ4 Sonar Range Finder MB1240

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SKU: POLOLU-1654 Brand: Pololu

This ultrasonic (sonar) range finder features real-time automatic calibration and noise rejection resulting in virtually noise-free distance readings even in environments with changing acoustic and electrical noise. The sensor detects objects from 0 to 7.65 m (25 ft) and has a resolution of 1 cm (0.4") for distances beyond 20 cm (8"). The XL-MaxSonar works from 3.3 to 5V and peaks at only 0.5 W of power consumption. The EZ0 / AE0, EZ1 / AE1, EZ2 / AE2, EZ3 / AE3, and EZ4 / AE4 versions have progressively narrower beam angles.

$104.95 AUD, inc GST

$95.41 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Fastest delivery: Tomorrow* Disclaimer:
For next-day delivery, the shipping address must be in the AusPost next-day network, eParcel Express must be selected, and the order must be placed before 2PM AEST Mon-Thurs excluding NSW Public Holidays. Orders may be delayed due to AusPost pickup timings and order verifications. eParcel Express is typically a 1-day service within the AusPost next-day network, though it is sometimes 2+ days.

Quantity Discounts:

5+ $92.55 (exc GST)
10+ $90.64 (exc GST)

MaxBotix ultrasonic sensor line comparison chart.

The Maxbotics XL-MaxSonar family of sonar range finders offers very short- to long-range detection and ranging in an incredibly small package with low power consumption. The XL-MaxSonar detects objects from 0 to 7.65 meters (25 feet) and provides sonar range information beyond 20 cm (8") with a resolution of 1 cm resolution (0.4 in). Objects between 0 and 20 cm range as 20 cm. An efficient transformer uses 0.5 W of power to drive the transducer, yielding high-output acoustic power. This acoustic power, combined with continuously-variable gain, real-time automatic calibration, real-time waveform signature analysis, and real-time noise rejection algorithms, results in virtually noise-free distance readings for most applications, even in the presence of various acoustic or electrical noise sources. The XL-MaxSonar distance sensor is available in five factory-calibrated beam patterns (EZ/AE0-4).

For a less-expensive, lower-resolution, shorter-range version, please consider the LV-MaxSonar-EZ family of distance sensors.

Specifications and Features

Small and light: 0.870" x 0.785" x 0.989" (2.2 x 2.0 x 2.5 cm), 0.22 oz (6.1 g)
Long range detection: 0 – 7.65 m (25 ft)
No dead zone; detections from 0 to 20 cm (8 in) are output as 20 cm
Resolution of 1 cm (0.4 in)
Low typical current consumption: 3.4 mA at 5 V, 2.1 mA at 3.3 V
Runs on 3.3 – 5 V
42 kHz ultrasonic sensor
10 Hz reading rate
Readings can be triggered externally or internally
Supports three interfaces (all are active simultaneously):
- Serial output of distance reading: asynchronous, logic-level (TTL), inverted, 9600 bps 8N1
- Analog output of distance reading: (Vcc/1024) / cm (4.9 mV/cm when input voltage Vcc = 5 V)
- Pulse width output of distance reading: 58 µs/cm (147 µs/in) on EZ models only
- Analog voltage envelope of return acoustic wave form on AE models only

Selecting the right distance sensor

Since there are 15 members of the XL- and LV-MaxSonar acoustic distance sensor family, Pololu recommend using the Maxbotix sonar range finder selection guide when choosing a acoustic range sensor for your application. There are 5 different beam configurations for the XL-MaxSonar family (EZ/AE0-4), each pictured below, and two output types: EZ and AE. Both models report a distance reading through an analog voltage output and a serial interface. The EZ models also report the distance reading as a high-accuracy digital pulse width, while the AE models report a real-time analog envelope of the detected acoustic reflections. The analog envelope is an time-varying analog signal representing the acoustic waveform received by the transducer. External processing of this analog envelope allows for the simultaneous detection of multiple objects at different distances. Please see the picture above for an example of the analog envelope output.

Maxbotix XL-MaxSonar-EZ0 / AE0 (MB1200 / MB1300) beam characteristics:

Maxbotix XL-MaxSonar-EZ1 / AE1 (MB1210 / MB1310) beam characteristics:

Maxbotix XL-MaxSonar-EZ2 / AE2 (MB1220 / MB1320) beam characteristics:

Maxbotix XL-MaxSonar-EZ3 / AE3 (MB1230 / MB1330) beam characteristics:

Maxbotix XL-MaxSonar-EZ4 / AE4 (MB1240 / MB1340) beam characteristics:

People often buy this product together with:

Maxbotix XL-MaxSonar-EZ0 Sonar Range Finder MB1200

0.1" (2.54mm) Crimp Connector Housing: 1x2-Pin 25-Pack

Female Crimp Pins for 0.1" Housings 100-Pack

Dimensions

Size:	0.870" x 0.785" x 0.989"
Weight:	6.1 g

General specifications

Resolution:	1 cm
Maximum range:	7.65 m
Minimum range:	0 cm¹
Sampling rate:	10 Hz
Baud:	9600 bps
Minimum operating voltage:	3.3 V
Maximum operating voltage:	5 V
Supply current:	3.4 mA²

Notes:

1: Objects closer than 20 cm are reported as 20 cm.
2: At 5 V (2.1 mA at 3.3 V).

Recommended links

Maxbotix sonar range finder selection guide
Report on Maxbotix sonar range finder tests

This report explains testing procedures, calculations, and conclusions for Maxbotix’s reliability demonstration test and mean time between failure (MTBF) test. Testing demonstrated over 200,000 hours for a MTBF with a 90% confidence level.
XL-MaxSonar-EZ0/AE0 (MB1200/MB1300) datasheet

Datasheet for the Maxbotix XL-MaxSonar-EZ0/AE0 (MB1200/MB1300) sonar range finders.
XL-MaxSonar-EZ1/AE1 (MB1210/MB1310) datasheet

Datasheet for the Maxbotix XL-MaxSonar-EZ1/AE1 (MB1210/MB1310) sonar range finders.
XL-MaxSonar-EZ2/AE2 (MB1220/MB1320) datasheet

Datasheet for the Maxbotix XL-MaxSonar-EZ2/AE2 (MB1220/MB1320) sonar range finders.
XL-MaxSonar-EZ3/AE3 (MB1230/MB1330) datasheet

Datasheet for the Maxbotix XL-MaxSonar-EZ3/AE3 (MB1230/MB1330) sonar range finders.
XL-MaxSonar-EZ4/AE4 (MB1240/MB1340) datasheet

Datasheet for the MaxBotix XL-MaxSonar-EZ4/AE4 (MB1240/MB1340) sonar range finders.
FAQ and code examples from MaxBotix
Sonar Acoustic Ranger

A PC application for reading the MaxSonar serial protocol.
MaxBotix website

Website for MaxBotix, which makes this and other easy-to-use ultrasonic sensors for a wide variety of applications.

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