// Start here //////////////////
//Simple SW0 control LED0
//SW0 press => LED0 ON
//SW0 unpress => LED0 OFF

//Pico_MultiTasking_Template
unsigned long previousMillis_0;  
unsigned long previousMillis_1; 
unsigned long previousMillis_2;

unsigned long currentTime;

unsigned long task0Time = 10;
unsigned long task1Time = 10;
unsigned long task2Time = 2000;

int LED0 = 0;
int SW0 = 15;
bool flag_SW0;
//SW0 press => 0
//SW0 unpress => 1

void setup() {
  Serial1.begin(115200);
  Serial1.println("Hello, Raspberry Pi Pico W!");
  pinMode(LED0, OUTPUT);
  pinMode(SW0, INPUT_PULLUP);
}

void loop() {
  currentTime = millis();

//Task0: read SW0
  if (currentTime - previousMillis_0 >= task0Time) {
    previousMillis_0 = currentTime;
    flag_SW0 = digitalRead(SW0);
  }

//Task1: control LED0
  if (currentTime - previousMillis_1 >= task1Time) {
    previousMillis_1 = currentTime;
    if(flag_SW0==0){
       digitalWrite(LED0,HIGH);
    }
    else{
       digitalWrite(LED0,LOW);
    }
  }

//Task2 here
  if (currentTime - previousMillis_2 >= task2Time) {
    previousMillis_2 = currentTime;
    //work1
    //work2

  }
} // END Program /////////////////