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Jan 28, 2013, 04:35 AM
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Ladybird disaster

So the Ladybird has been pretty disastrous, certainly the hardest thing for the computer to fly.

Reflowed the LISY300 board again, in the hope that the failures were caused by a flaky solder joint. Soldering has greatly improved, since it was originally reflowed. It's time for some quality time with the MPU9150, but there's hope every last old component can be used. After a few crashes, the soldering does appear to have fixed it.

The soldering iron also does a better job reflowing hot glue than the glue gun, making it flow into the nooks the glue gun can't make it smooth enough to flow into.

Noted getting the Devention 4 to work requires powering up the ladybird & the ground station 1st, then powering up the Devention. The Ladybird has to be powered on so the ground station can go from configuration to PWM packets & send the right stick voltages.

The Ladybird hovers in a single place. Ask it to change position & it goes crazy. Heading is showing extreme instability. Every battery change, the heading offset changes.

The Syma X1 was more stable, as indoor quads go. Making a quad more stable requires much better gyros, like the ADXRS652. That would require a much bigger airframe.
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