IDeATe

Outcome

Move up Delete Move down

Outcome

Control two led by inputting the times they blink.

Move up Delete Move down

Process

Connect two leds to the circuit. The red one is connected to D3 and the blue one is connected to D4.

Move up Delete Move down

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Move up Delete Move down

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Move up Delete Move down

Reflection

Particle functions always input things as string. Thus, the command should be casted to different data types according to the usage. Some validation would be required if the input is undetermined.

Move up Delete Move down

int led1Pin = D3;
int led2Pin = D4;

int led1Control(String command) {
   int times = atoi(command);
   for(int i = 0; i < times; i++) {
       digitalWrite(led1Pin, HIGH);
       delay(500);
       digitalWrite(led1Pin, LOW);
       delay(500);
   }
   return 1;
}

int led2Control(String command) {
   int times = atoi(command);
   for(int i = 0; i < times; i++) {
       digitalWrite(led2Pin, HIGH);
       delay(500);
       digitalWrite(led2Pin, LOW);
       delay(500);
   }
   return 1;
}

void setup() {
    Particle.function("led1", led1Control);
    Particle.function("led2", led2Control);
    pinMode(led1Pin, OUTPUT);
    pinMode(led2Pin, OUTPUT);
}

void loop() {

}

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