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Sonar log problem

Posted by Rune Eide Hansen on July 28, 2013 at 6:35am

I have installed the MB1200 XL-EV0 sonar with the recommend filter (10 ohm resistor and 100uF 10V capacitor) and have added a ferrite ring. Its running on normal servo wire. It is mounted with two bolts with fuel line as dampener. It is place on the underside of the main frame (CF) next to the battery.

3691043952?profile=original

When i run the sonar test in terminal everything is fine, I get consistent data and precise height measurements.

But the log seems all wrong to me.

3691043686?profile=original

The SonAlt don't change at all. with or without motors running. The barometer changes and shows the correct height as accurately as it can.  

Help please!

2013-07-28 12-59 1.log

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Replies

  • sufal thakuri March 28, 2014 at 5:39am

    Hi,

    I am new to APM and I am trying to use Ultrasonic sensor for alt-hold but APM is not reading the sensor. In the terminal I have tested the sensor and it shows reading but I cannot save that in data logs. Can someone please guide me through this process. This will be a great help

    Thanks

  • John Hanson July 28, 2013 at 9:29pm

    Check this out-

    http://diydrones.com/forum/topics/sonar-101

This reply was deleted.

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