Skill Dev IV- Hongyu Mao - a servo clock | Project

Outcome

In this exercise, I followed up with the tutorial and finally made a device could represent different time slot as a day using servo

Process

I first test my servo to see how it could work

Exercise 1: Test the servo

My first step is try to test my servo to see if it could work.

nt servoPin = A4;
int servoPosition = 0;
Servo servo;
bool updatePosition = true;
void setup()
{
  Serial.begin( 9600 );
  Particle.function( "pos", setPosition );
  servo.attach( servoPin );
}
void loop()
{
    
  if( updatePosition == true ){
    updatePosition = false;
    }
  }
    


int setPosition( String command ){
  Serial.println( "setSpeed: " + command );
  int value = command.toInt();
  if( value < 0 ) return -1;
  if( value > 180 ) return -1;
  servoPosition = constrain( value, 0, 180 );
  updatePosition = true;
  return 1;
}

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skill dev 4.1

Hongyu Mao - https://youtu.be/z2LwO_htONk

Exercise 2: A clock

then I implemented it on a servo clock to represent day time. the servo will shift certain angle to show exact time of a day.

nt servoPin = A4;
int servoPosition = 0;

Servo myServo;

void setup() {
    
    // attaches the servo on the A3 pin to the servo object
    myServo.attach( A4 );

   //Register our Particle to control the servo
   Particle.function("servo", servoControl);
   
   // Keep a cloud variable for the current position
   Particle.variable( "servoPosition" , &servoPosition , INT );

}

void loop() {

}

int servoControl(String command)
{
    // Convert
   int newPosition = command.toInt();
   
   // Make sure it is in the right range And set the position
   servoPosition = constrain( newPosition, 0 , 180);

   // Set the servo
   myServo.write( servoPosition );

   // done
   return 1;
}

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