19.9.

Kokeilkaa

1. Jos ekaa kertaa:
1. Examples -> Blink
2. Seuraava
1. Ohjaa servoa
1. Servo -> sweep
2. Servo -> knob  
2. Ohjaa servoa valovastuksella (LDR)
• http://forum.arduino.cc/index.php/topic,25288.0.html
3. Päivän ongelma
1. Miksi tämä kahden potentiometrin, kahden servon ohjaus ei toimi?

// Controlling a servo position using a potentiometer (variable resistor)

// by Michal Rinott <http://people.interaction-ivrea.it/m.rinott>

#include <Servo.h>

 

Servo myservo1;  // create servo object to control a servo

Servo myservo2;  // create servo object to control a servo

 

int potpin1 = 0;  // analog pin used to connect the potentiometer

int val1;    // variable to read the value from the analog pin

int potpin2 = 0;  // analog pin used to connect the potentiometer

int val2;    // variable to read the value from the analog pin

 

void setup()

{

  myservo1.attach(8);  // attaches the servo on pin 9 to the servo object

   myservo2.attach(9);  // attaches the servo on pin 9 to the servo object

}

 

void loop()

{

  val1 = analogRead(potpin1);            // reads the value of the potentiometer (value between 0 and 1023)

  val1 = map(val1, 0, 1023, 0, 179);     // scale it to use it with the servo (value between 0 and 180)

  myservo1.write(val1);                  // sets the servo position according to the scaled value

  delay(15);                           // waits for the servo to get there

  

  val2 = analogRead(potpin2);            // reads the value of the potentiometer (value between 0 and 1023)

  val2 = map(val2, 0, 1023, 0, 179);     // scale it to use it with the servo (value between 0 and 180)

  myservo2.write(val2);                  // sets the servo position according to the scaled value

  delay(15);                           // waits for the servo to get there

}