timer

Forum 2005-2010 (read only) Software Syntax & Programs
#1

hi,

how to set a specific timer with specific feedback? i want to use a button, for example how many times the button pressed in 5 sec. if in 5 sec the button pressed less than 5 times led light is on, if more than 5 times led light is blinking. how to use the coding in arduino for this issue?

thanks

#2

There are a few things you need to decide on:

  • Are your program going to do anything else?

  • How do you want to divide the timeline?

  • Divide timeline evenly in 5 seconds

  • Start from detected press, and count presses the next 5 seconds

Every detail about your specific constraints/ideas will help. :)

#3

hi,

Actually i want to try two different programs.

  1. I want use button for every 5 sec, it record how many times button is pressed, for example for every 5 sec if button is pressed less than 5 led light is on.

  2. other, i want to try for multiple buttons, in 5 sec, how many button pressed (the timer should started from the first button pressed)

thanks

#4
  1. I want use button for every 5 sec, it record how many times button is pressed, for example for every 5 sec if button is pressed less than 5 led light is on.

This is one possible solution for you. :slight_smile:

It uses some classes from my Playground Page

#include <TimedAction.h> //http://www.arduino.cc/playground/uploads/Code/TimedAction.zip
#include <Button.h> //http://www.arduino.cc/playground/uploads/Code/Button.zip
#include <LED.h> //http://www.arduino.cc/playground/uploads/Code/LED.zip

//this initializes a TimedAction class that will change the state of an LED every second.
TimedAction resetAction = TimedAction(5000,resetButtonCount);
TimedAction updateButtonAction = TimedAction(20,updateButtons);

Button countButton = Button(12,PULLUP);
Button startCountButton = Button(11,PULLUP);

LED led = LED(13);

byte pressed = 0;

void setup(){/nothing to setup/}

void loop(){
resetAction.check();
updateButtonAction.check();
(pressed<5) ? led.on() : led.off(); //if a button has been pressed over 5 times, turn led off
}

//reset counter
void resetButtonCount(){
pressed = 0;
}

//update buttons and increase pressed if suitable
void updateButtons(){
//if the button is pressed AND the state has changed, increase counter
countButton.uniquePress() ? pressed++ : pressed;
}

#5

hi,

if i just want to use one button, so every 5 sec it counted how many times that button is pressed. i did like below, but seems like i press the button on time and the light on for 5 sec.

#include <TimedAction.h> //http://www.arduino.cc/playground/uploads/Code/TimedAction.zip
#include <Button.h> //http://www.arduino.cc/playground/uploads/Code/Button.zip
//#include <LED.h> //http://www.arduino.cc/playground/uploads/Code/LED.zip

//this initializes a TimedAction class that will change the state of an LED every second.
TimedAction resetAction = TimedAction(5000,resetButtonCount);
TimedAction updateButtonAction = TimedAction(20,updateButtons);

Button countButton = Button(12,PULLUP);
//Button startCountButton = Button(11,PULLUP);

//LED led = LED(13);

int pressed = 0;

void setup(){
pinMode(13,OUTPUT);
Serial.begin(9600);

}

void loop(){
resetAction.check();
updateButtonAction.check();
//(pressed<5) ? led.on() : led.off(); //if a button has been pressed over 5 times, turn led off

if (pressed > 5){
//digitalWrite(13,HIGH);
Serial.println(“on”);
}else{
//digitalWrite(13,LOW);
Serial.println(“off”);
}

}

//reset counter
void resetButtonCount(){
pressed = 0;
}

//update buttons and increase pressed if suitable
void updateButtons(){
//if the button is pressed AND the state has changed, increase counter
countButton.isPressed() ? pressed++ : pressed;
}

#6

You may want to do something like the following:

int countButton  = 12;

void setup()
{
  pinMode(13, OUTPUT); 
  pinMode(countButton,INPUT); 
  digitalWrite(countButton,HIGH); //turn on pull-up resistor
}

void loop()
{
    if( switchTime() > 5000)
       digitalWrite(13,HIGH); 
    else   
       digitalWrite(13,LOW);
}


// return the time in milliseconds that the switch has been in pressed (LOW)
long switchTime()
{
  static unsigned long startTime = 0;         // the time the switch state change was first detected
  static boolean state;              // the current state of the switch

  if(digitalRead(countButton) != state) // check to see if the switch has changed state
  {
    state = ! state;       //yes,  invert the state
    startTime = millis();  // store the time
  }
  if( state == LOW)
    return millis() - startTime;   // return the time in milliseconds   
  else
    return 0; // return 0 if the switch is not pushed (in the LOW state);   
}

switchTime is a function that returns the number of milliseconds a button has been pushed

#7
  1. I want use button for every 5 sec, it record how many times button is pressed, for example for every 5 sec if button is pressed less than 5 led light is on.

This is what my sketch does.

If the button is pressed more than five times, inside an interval of 5 seconds. Turn an LED off, otherwise turn if on.

This sketch prints to console the number of presses made the previous 5 seconds:
[TESTED CODE]

#include <TimedAction.h> //http://www.arduino.cc/playground/uploads/Code/TimedAction.zip
#include <Button.h> //http://www.arduino.cc/playground/uploads/Code/Button.zip
#include <LED.h> //http://www.arduino.cc/playground/uploads/Code/LED.zip

//this initializes a TimedAction class that will change the state of an LED every second.
TimedAction resetAction = TimedAction(5000,resetButtonCount);
TimedAction updateButtonAction = TimedAction(20,updateButtons);

Button countButton = Button(12,PULLUP);

LED led = LED(13);

byte pressed = 0;

void setup(){/nothing to setup/}

void loop(){
resetAction.check();
updateButtonAction.check();
(pressed<5) ? led.on() : led.off(); //if a button has been pressed over 5 times, turn led off
Serial.begin(9800);
}

//reset counter
void resetButtonCount(){
Serial.print(“You pressed the button “);
Serial.print(pressed);
Serial.println(” times”);
pressed = 0;
}

//update buttons and increase pressed if suitable
void updateButtons(){
//if the button is pressed AND the state has changed, increase counter
countButton.uniquePress() ? pressed++ : pressed;
}

[edit]

if i just want to use one button, so every 5 sec it counted how many times that button is pressed. i did like below, but seems like i press the button on time and the light on for 5 sec.

…

 countButton.isPressed() ? pressed++ : pressed;

This code will execute so often that a press will be registered as many.
Be sure to download the new: Button Library.

 countButton.uniquePress() ? pressed++ : pressed;

It might be that mem’s sketch does what you want. [The above post.]
[/edit]

#8

hi,

seems like i still don't get the latest button library. it showed error, error: 'class Button' has no member named 'uniquePress'. i had downloaded from the link you gave but the word "uniquePress" written in black color. i tried by add 'uniquePress KEYWORD2' in 'keyword' text document, it can change the color to brown, but the error still the same, i think need to modify in c++ file. can u show me the latest library? thanks.

#9

The zip contains the latest library.

Both the .h and the .cpp is correct.

Be sure to delete the library, then download the new one. And then recompile the sketch. :)

[edit]LED.h LED.cpp keywords.txt[/edit]

#10

Hi,

Thanks, i already can use that, but now i am trying another function. i have tried below code but seem like something wrong. i want to use 2 buttons, first button to start the 5 sec function, if it pressed it should execute 5 sec function, and in such 5 sec it record how many times second button is pressed.

thanks

#include <TimedAction.h> //http://www.arduino.cc/playground/uploads/Code/TimedAction.zip
#include <Button.h> //http://www.arduino.cc/playground/uploads/Code/Button.zip
//#include <LED.h> //http://www.arduino.cc/playground/uploads/Code/LED.zip

//this initializes a TimedAction class that will change the state of an LED every second.
TimedAction updateButtonAction = TimedAction(1000,updateButtons);
TimedAction resetAction = TimedAction(5000,resetButtonCount);
TimedAction updateButtonAction1 = TimedAction(20,updateButtons1);

Button countButton = Button (11,PULLUP);
Button countButton1 = Button(12,PULLUP);

int pressed = 0;

void setup(){

Serial.begin(9600);
}

void loop(){
updateButtonAction.check();
}

//if the button 11 is pressed execute timer 5 sec
void updateButtons(){
if (countButton.uniquePress()){
resetAction.check();
Serial.println(“check”);
} else{
Serial.println(“nothing”);
}
}

//in 5 sec call another button
void resetButtonCount(){

updateButtonAction1.check();

Serial.print(“You pressed the button “);
Serial.print(pressed);
Serial.println(” times”);

}

//update buttons and increase pressed if suitable
void updateButtons1(){
countButton1.uniquePress() ? pressed++ : pressed;

}

#11