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More from ROBOT ELECTRONICS

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SRF01 - The Worlds Smallest Single Transducer Ultrasonic Ranger

Devantech

World beating performance - the SRF01 employs Devantech's 2nd generation AutoTune technology which allows ranging all the way down to zero on a single transducer sonar.

Technical data

SRF01
Range (Industrial spec')	18 cm ... 6 m
Range (Hobby spec' after auto-calibration)	0 cm ... 6 m
Supply voltage	3.3V ... 12V DC
Current (typical)	25 mA
Weight	2.7 g
Units	cm/inch
Frequency	40 kHz
Interface	Single Pin Serial Communication

Connections

Single Pin Serial Communication

Serial data is 1 start, 1 stop and no parity bits. Serial data is a TTL level signal - It is NOT RS232. Do not connect the SRF01 to an RS232 port - you will destroy the module! Communication with the SRF01 is with both serial input and serial output on a single pin. The SRF01 will be listening at all times except when it is actually sending data, and will go back to listening as soon as its finished. To communicate with the SRF01, you simply need to send a "break", followed by two bytes, the address of the SRF01 (factory default is 1) and the command. A "break" is just a low level for 12 bit times or longer. 1.5mS or more will be fine. It is used to synchronize transfers on the 1-wire serial bus. The default shipped address can be changed by the user to any of 16 addresses 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 or 16, and therefore up to 16 sonar's can be used. Note - this range is different to the SRF02 which has addresses 0-15. The reason is that for specific commands only all SRF01's regardless of their programmed address, will respond to address 0. This makes it easy to start all SRF01s ranging at the same time.

Mounting the SRF01

A rubber grommet is supplied to mount the SRF01. To use this make a 20mm cutout in your panel and fit the grommet. The SRF01 will then snuggly push into the hole in the grommet. Maximum panel thickness is 1.7mm.

Manufacturer's data

Technical Specification - link to the manufacturer
FAQ - link to the manufacturer

Accessories

Suitable accessory for

Product information for: SRF01 - The Worlds Smallest Single Transducer Ultrasonic Ranger

Publishing date (date of last technical specification): 2009-01-22
Shipping weight: 160 g
Manufacturer: Devantech
Brand: ROBOT ELECTRONICS
Article number: SRF01

World beating performance - the SRF01 employs Devantech's 2nd generation AutoTune technology which allows ranging all the way down to zero on a single transducer sonar.

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The article SRF01 - The Worlds Smallest Single Transducer Ultrasonic Ranger is part of the following categories:

Customer Groups > Research > Sensors > Ultrasonic

Customer Groups > Private Customers > Robot Electronics > Sensors > Ultrasonic

Categories > Ultrasonic Sensors > Indoor ultrasonic measurement technology

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