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Bert writes – “The Devantech SFR04 Ultrasonic Range Finder indicates the distance to the closest object within range. Echo’s that arrive later are received and processed, but subsequently ignored. For a true radar all signals should be taken into account. So, time to heat up the old soldering iron and make some modifications to the Devantech SFR04 circuit board.” [via] – Link.
6 thoughts on “DIY Ultrasonic sonar with LEGOs”
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It’s *SONAR*, not RADAR. Sound vs Radio :)
It’s *SONAR*, not RADAR. Sound vs Radio :)
And it’s LEGO, not LEGOs :)