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Sep 17, 2013, 04:38 AM
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The PX4FLOW's 1st flight

PX4Flow micro quad (1 min 16 sec)

Micro quad flies some waypoints, then a position hold test over plush carpet, using a PX4flow modified to use an MB1240 sonar module.

Based on the previous video of the TCM8230 over carpet, the PX4FLOW is a huge improvement. It actually holds position quite well over plush carpet & below 1m. Replacing the MB1043 with an MB1240 & translating the serial protocol from cm to mm is required.

The sonar still has issues above 1m. It glitches to 5m when it can't detect a reflection. Sometimes you want it to send 0 when it reads 5m & sometimes you want it to repeat the previous reading when it reads 5m. It still glitches, despite this algorithm.

It's very heavy, so it handles the wind quite well. Crashes require a lot of repairs & propellers.
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