button_pratice

button_practice.cpp

int ledState = LOW;
int buttonState;

int buttonpin = 2;// pin for button
int ledpin = 5;// pin for led
int mapin = 6;// pin for motor

unsigned long lastDebounceTime = 0;
unsigned long debounceDelay = 200;

void setup() {
  Serial.begin(115200);
  pinMode(buttonpin, INPUT_PULLUP);
  pinMode(ledpin, OUTPUT);
  pinMode(mapin, OUTPUT);
}

void loop() 
{
  int i, k;
  int reading = digitalRead(buttonpin);
  int currenttime = millis();
  Serial.println(reading);
  if ((currenttime - lastDebounceTime) > debounceDelay) 
  {
    lastDebounceTime = currenttime;
    if (reading == LOW)
    ledState = !ledState;
  }
  //.
  //.
  //.
  //.
  //there are still bunch of code about how to let led and motor to work with pwm
  //but it's not the point so skip it
}