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jason.isaacs

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Posts: 19
Reply with quote  #1 
We are seeing crosstalk on our sonar sensors. This is causing lots of false obstacle detections on the physical bots. Would it be possible to cycle the operation of the sonar sensors to avoid crosstalk?

Please see the attached report generated by one of our students.


 
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docx SWAR-106 - Wendell Tan.docx (16.11 KB, 5 views)

matera

Senior Member
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Posts: 100
Reply with quote  #2 
We did this by updating the Arduino code. The documentation in the NewPing library suggests that you solve the crosstalk problem by waiting at least 33ms between pings from adjacent sonars: 

https://playground.arduino.cc/Code/NewPing

The NewPing library is the code that's currently controlling the sonar. 
jason.isaacs

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Posts: 19
Reply with quote  #3 

@matera

Thanks for the tip. We added in the delays today, and it seemed to help. More physical testing tomorrow.

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