02162411_劉永健_week12

設定角度自動轉


#include <Servo.h>

Servo myservo;  // create servo object to control a servo
// twelve servo objects can be created on most boards

int pos = 0;    // variable to store the servo position

void setup() {
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
}

void loop() {
  for (pos = 0; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees
    // in steps of 1 degree
    myservo.write(pos);              // tell servo to go to position in variable 'pos'
    delay(15);                       // waits 15ms for the servo to reach the position
  }
  for (pos = 180; pos >= 0; pos -= 1) { // goes from 180 degrees to 0 degrees
    myservo.write(pos);              // tell servo to go to position in variable 'pos'
    delay(15);                       // waits 15ms for the servo to reach the position
 }

}

最大轉180度

轉旋鈕,馬達跟著一起轉



/*
 Controlling a servo position using a potentiometer (variable resistor)
 by Michal Rinott <http://people.interaction-ivrea.it/m.rinott>

 modified on 8 Nov 2013
 by Scott Fitzgerald
 http://www.arduino.cc/en/Tutorial/Knob

*/

#include <Servo.h>

Servo myservo;  // create servo object to control a servo

int potpin = 0;  // analog pin used to connect the potentiometer
int val;    // variable to read the value from the analog pin

void setup() {
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
}

void loop() {
  val = analogRead(potpin);            // reads the value of the potentiometer (value between 0 and 1023)
  val = map(val, 0, 1023, 0, 180);     // scale it to use it with the servo (value between 0 and 180)
  myservo.write(val);                  // sets the servo position according to the scaled value
  delay(15);                           // waits for the servo to get there
}

電腦和Arduino溝通

int firstSensor = 0;    // first analog sensor

int secondSensor = 0;   // second analog sensor

int thirdSensor = 0;    // digital sensor

int inByte = 0;         // incoming serial byte

void setup() {

  // start serial port at 9600 bps:

  Serial.begin(9600);

  while (!Serial) {

    ; // wait for serial port to connect. Needed for native USB port only

  }

  pinMode(2, INPUT);   // digital sensor is on digital pin 2

  establishContact();  // send a byte to establish contact until receiver responds

}

void loop() {

  // if we get a valid byte, read analog ins:

  if (Serial.available() > 0) {

    // get incoming byte:

    inByte = Serial.read();

    // read first analog input, divide by 4 to make the range 0-255:

    firstSensor = analogRead(A0) / 4;

    // delay 10ms to let the ADC recover:

    delay(10);

    // read second analog input, divide by 4 to make the range 0-255:

    secondSensor = analogRead(1) / 4;

    // read  switch, map it to 0 or 255L

    thirdSensor = map(digitalRead(2), 0, 1, 0, 255);

    // send sensor values:

    Serial.write(firstSensor);

    Serial.write(secondSensor);

    Serial.write(thirdSensor);

  }

}

void establishContact() {

  while (Serial.available() <= 0) {

    Serial.print('A');   // send a capital A

    delay(300);

  }

}