电机采用35BYJ46步进电机。（以后可能要用转矩较大的步进电机，第一次打样先采用此电机代替。）

2）在油烟机电源开关打开后，电机顺时钟旋转14°，角速度要求每秒7°。即电机顺时针旋转14°后立即停止，要求精确定位；相反，当油烟机电源开关关闭后，电机以相同速度逆时钟旋转14°。

-,Motor stepper motor using 35BYJ46. (Since it may take a large step motor torque, for the first time using this motor to replace the first proofs.) 2) Open the power switch in the hood, the motor clockwise rotation 14 °, the angular velocity required per second 7 °. The motor clockwise 14 ° after the cease and precise positioning requirements　the contrary, when the smoke machine power switch closed, the motor speed to the same counter-clockwise rotation 14 °.