Devantech SRF02 Sensor
Last Modified: 2008-12-31
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Acroname Robotics PDF webpage version Devantech SRF02 Sensor PDF

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Ordering Information
Part Number:R287-SRF02
Price:$24.50
Weight:0.01 lbs

This low cost ultrasonic ranger has both I2C and Serial interfaces. New AutoTune algorithms intelligently back the minimum range right up to the transducer ringdown for the very best performance possible, automatically, in the background, and with no calibration cycles necessary. Additional new commands allow for separate burst and ranging control.

More Details:

Our SRF info page allows you to compare the Devantech Sonic Range Finders.

The SRF02 features both I2C and a Serial interfaces. The serial interface is a standard TTL level UART format at 9600 baud,1 start, 2 stop and no parity bits, and may be connected directly to the serial ports on any microcontroller. Up to 16 SRF02's may be connected together on a single bus, either I2C or Serial.

New commands in the SRF02 include the ability to send an ultrasonic burst on its own without a reception cycle, and the ability to perform a reception cycle without the preceding burst. Because the SRF02 uses a single transducer for both transmission and reception, the minimum range is higher than our other dual transducer rangers. The minimum measurement range is around 15cm (6 inches). Like all Devantech rangefinders, the SRF02 can measure in microseconds, cm or inches.

Specifications
Voltage 5v
Current 4mA Typ.
Frequency 40KHz
Maximum Range 6 m
Minimum Range 15 cm
Max Analogue Gain Automatic 64 step gain control
Connection Standard IIC Bus, UART Serial
Full Automatic Tuning No calibration, just power up and go
Timing Fully timed echo, freeing host computer of task
Units Range reported n uS, mm or inches
Weight 0.16226 oz.
Size 24mm w x 20mm d x 17mm h

Beam Pattern:

Beam pattern for the SRF02 in polar form

Dimensions:

Dimensions of SRF10

Please read the technical specifications before purchasing this sensor.

Product
Resources

Icon for igs file
IGIS 3D CAD File of the sensor
 

Related Links:

Acroname Inter Integrated Circuit (I2C) Standard

The Devantech Sonic Range Finders Comparison and Examples

Examples:

Devantech SRF02 Sonar Interface to BrainStem GP 1.0 Example

Shows a simple program using the C Development Download

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