Archive for July, 2010

First quadrocopter’s flight outside

We’ve tried to launch quadrocopter for the first time outside. It was more successful than I’ve hoped, but not so great as it should be :) . It was quite stable along horizontal axis, but it was turning around Z (vertical). I had to take it down, because it’s not controllable in such situation.

During second launch, when I’ve connected battery to the copter, one of the field transistors burned down. New hole in the transistor and puff of smoke informed us that it’s over for a now. I had such problem for a few times. It seems that it’s necessary to limit the current upon startup. I’ll fix the problem with regs, Z gyro and try again ;)

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YouTube Direkt

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YouTube Direkt

2.4 GHz diversity controller

My new finished diversity controller based on airwave module. Soon to be expanded to work with 4 signals, video spliter, telemetry uplink to the PC. Expected price <100$.