quadcopter pwm esc motor test01:32

fc: atmega128A
pwm speed: 490Hz(fast pwm mode, oc1a, oc1b, oc3a, oc3b) duty cycle: from 4% ~ 50%
esc: ztw optic spider pro
pdb: realacc/mateo pdb-xpw 5v 12v dual bec pdb
motor: emax xa2212 980kv brushless motor

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