Arduino舵机控制

红色的是电源正极，黑色的是电源负极，白色的是信号线。有些舵机线是红棕橘三色，分别对应红黑白。

#include <Servo.h>

Servo myservo;

int pos = 90;

void setup() {

Serial.begin(9600);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
myservo.attach(9);

}

void loop() {

char val = Serial.read();

if(val=='z')

{
pos+=30;                                 // in steps of 1 degree
myservo.write(pos);              // tell servo to go to position in variable 'pos'
delay(150);                       // waits 15ms for the servo to reach the position

Serial.println(" servo_right");
}

if(val=='x')
{
pos-=30;                              // in steps of 1 degree
myservo.write(pos);              // tell servo to go to position in variable 'pos'
delay(150);                       // waits 15ms for the servo to reach the position

Serial.println(" servo_left");
}