mmatos
lvl.2
Flight distance : 179770 ft
United States
Offline
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First, the jingle is actually created by the ESC (electronic speed controller) vibrating the motors. It's actually not the Spark Flight Controller or a speaker - it's basically a boot up chime programmed into the firmware of each of the four ESCs.
Usually all four will boot at exactly the same time, sounding like a single jingle. On occasion, perhaps due to temperature variations, an ESC might boot slightly slower than the others, sound its motor out of sync. |
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