IDeATe

Outcome

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Intention

Experiment diverse operations of LED blinking by setting up basic Particle circuit and programming simple codes.

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Process

1. Setting up Particle circuit.
2. Connecting the circuit with cloud.
3. Writing codes on the Particle platform.
4. Send data to the Particle board.
5. Observation and experiment!

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Reflection

It was my first time to make circuit. Just like I firstly started programming, the process was full of wonders. It was so amazing that this simple electric device does what I ordered. At first, I had difficulty understanding coding convention is different from general programming. This is because I learned global variable is really bad thing. But, in Particle context, making a global variable was crucial to make things happen.

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Exercise 1. Modify the program to Blink on and off every 3 seconds.

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int ledPin = D2;
void setup() {
  // We want to tell the Argon that we'll use
  // D2 as an output pin.
  pinMode(ledPin, OUTPUT);
}

void loop() {
    // led on for 3 sec
    digitalWrite(ledPin, HIGH);
    delay(3000);
    // led sleep for 3 sec
    digitalWrite(ledPin, LOW);
    delay(3000);
}

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Exercise 2. Change the program to blink on and off 5 times then stop for 3 seconds.

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int ledPin = D2;
void setup() {
  // We want to tell the Argon that we'll use
  // D2 as an output pin.
  pinMode(ledPin, OUTPUT);
}

void loop() {
    // blink 5 times for 0.5 sec
    int i = 0;
    while (i < 5) {
        digitalWrite(ledPin, HIGH);
        delay(500);
        
        digitalWrite(ledPin, LOW);
        delay(500);
        i ++;
    }
    // sleep for 3 sec
    digitalWrite(ledPin, LOW);
    delay(3000);
}

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Exercise 3. Program the LED’s to alternate blinks

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int ledPin1 = D2;
int ledPin2 = D3;
void setup() {
    // D2 and D3 as output pins
    pinMode(ledPin1, OUTPUT);
    pinMode(ledPin2, OUTPUT);
}

void loop() {
    digitalWrite(ledPin1, HIGH);
    digitalWrite(ledPin2, LOW);
    delay(1000);
    
    digitalWrite(ledPin1,LOW);
    digitalWrite(ledPin2,HIGH);
    delay(1000);
}

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