用Arduino控制无刷电机电调的最简方法

关于电调的控制信号：电调信号是pwm信号，信号频率为50Hz，一个周期为20ms。对于电调来讲，高电平脉宽为1ms表示停转，高电平脉宽为2ms表示满油门运转;对于舵机来说1.5ms是归中,1ms和2ms分别为左右满舵。（因此下面才直接用Servo库来给实现ESC信号的输出）。

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0.Servo.writeMicroseconds(): Writes a value in microseconds (uS) tothe servo, controlling the shaft accordingly. On a standard servo, this willset the angle of the shaft. On standard servos a parameter value of 1000 isfully counter-clockwise, 2000 is fully clockwise, and 1500 is in the middle.

1.servo.write() allows a maximum of 180 servo positions

  servo.writeMicroseconds() allows a maximum of 1000 servo positions

2.The "write" method simply maps the"degrees" to microseconds and calls the "writeMicroseconds"method anyway.

   The "degree" of turn is simply a convenientabstraction, and few bother to calibrate it.

控制程序：

1.  #include<Servo.h> // Using servo library to control ESC

2.  Servo esc; //Creating a servo class with name as esc

3.  int val; //Creating a variable val

4.  void setup()

5.  {

6.  esc.attach(9); //Specify the esc signal pin,Here as D9

7.  esc.writeMicroseconds(1000);// initialize the signal to 1000

8.  Serial.begin(9600);

9.  }

10. void loop()

11. {

12. val=analogRead(A0); // Read input from analog pin a0 and store in val

13. val= map(val, 0,1023,1000,2000); // mapping val to minimum and maximum(Change if needed)

14. Serial.println(val);

15. esc.writeMicroseconds(val);// using val as the signal to esc

16. }

补充：电调1ms停转，2ms满油门运转，是指的单向电调，且是方波脉冲。而一般双向电调，1ms反转最大油门，1.5油门中点，2ms满油门正转。