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SRF04 - Ultra Sonic Ranger

Download the SRF04 datasheet PDF. This datasheet also covers the SRF04_ETC variant, as both devices belong to the same ultra sonic ranger family and are provided as variant models within a single manufacturer datasheet.

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Note: The manufacturer provides a single datasheet file (SRF04_ETC-1.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number SRF04
Manufacturer Unknown Manufacturer
File Size 157.03 KB
Description Ultra Sonic Ranger
Datasheet download datasheet SRF04 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
SRF04 - Ultra-Sonic Ranger Technical Specification This project started after I looked at the Polaroid Ultrasonic Ranging module. It has a number of disadvantages for use in small robots etc. 1. 2. 3. 4. 5. 6. The maximum range of 10.7 metre is far more than is normally required, and as a result The current consumption, at 2.5 Amps during the sonic burst is truly horrendous. The 150mA quiescent current is also far too high. The minimum range of 26cm is useless. 1-2cm is more like it. The module is quite large to fit into small systems, and It’s EXPENSIVE. The SRF04 was designed to be just as easy to use as the Polaroid sonar, requiring a short trigger pulse and providing an echo pulse. Your controller only has to time the length of this pulse to find the range.