element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • About Us
  • Community Hub
    Community Hub
    • What's New on element14
    • Feedback and Support
    • Benefits of Membership
    • Personal Blogs
    • Members Area
    • Achievement Levels
  • Learn
    Learn
    • Ask an Expert
    • eBooks
    • element14 presents
    • Learning Center
    • Tech Spotlight
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents Projects
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Avnet Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • Store
    Store
    • Visit Your Store
    • Choose another store...
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
  • Settings
Arduino
  • Products
  • More
Arduino
Arduino Forum How to interrupt delay?
  • Blog
  • Forum
  • Documents
  • Quiz
  • Events
  • Polls
  • Files
  • Members
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Join Arduino to participate - click to join for free!
Actions
  • Share
  • More
  • Cancel
Forum Thread Details
  • Replies 4 replies
  • Subscribers 393 subscribers
  • Views 3108 views
  • Users 0 members are here
  • delay
Related

How to interrupt delay?

Former Member
Former Member over 10 years ago

Hi, it's me again,

 

So want to press button to close relay and then it opens after fixed time or I press button again, whichever comes first.  I can do the time, but I can't figure how to interrupt or halt the delay prematurely with a second button press.

 

I have tried replacing

 

int stayON = 10000;

delay(stayON);

 

with

 

int stayON = 100;

int var = 0;

            while(var < 100 && stateButton == LOW)

              {

                {

                delay(stayON);

                }

                var++;

              }

 

trying to break delay down into smaller increments and make it so if I press button then the while stops.  It works fine if I don't have any stateButton evaluations, but as soon as I add the button eval it just blinks when I press button but relay doesn't ever close.  I have tried a bazillion different ways of doing this with no luck and it's the only concept I have found, that I understand anyway.

 

Any help would be appreciated, thank you!

 

Full unmodified code below:

int pinButton = 10;
int Relay = 11;
int stateRelay = LOW;
int stateButton;
int previous = LOW;
long time = 0;
long debounce = 500;
int stayON = 10000;
void setup() {
pinMode(pinButton, INPUT);
pinMode(Relay, OUTPUT);
Serial.begin(9600);
}
void loop()
{
stateButton = digitalRead(pinButton);
if(stateButton == HIGH && previous == LOW && millis() - time > debounce)
{
  if(stateRelay == HIGH)
    {
      digitalWrite(Relay, LOW);
    } 
  else
    {
      digitalWrite(Relay, HIGH);
      Serial.print(1);
      delay(stayON);
      digitalWrite(Relay, LOW);
      Serial.print(2);
    }
time = millis();
}
previous == stateButton;
}
  • Sign in to reply
  • Cancel
Parents
  • Former Member
    Former Member over 10 years ago

    Ok I found the answer, go down to odometers post, it doesn't use the delay function and works perfectly.   Adafruit customer service forums • View topic - Countdown Timer Relay Sketch Help

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Cancel
  • mcb1
    mcb1 over 10 years ago in reply to Former Member

    check out the IMO porrly worded "BlinkWithoutDelay" in the examples in Arduino IDE.

     

    As peter said don't use Delay().

     

    Mark

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Cancel
  • Robert Peter Oakes
    Robert Peter Oakes over 10 years ago in reply to mcb1

    Yes, good point mcb1, that is a good example to refer to

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Cancel
Reply
  • Robert Peter Oakes
    Robert Peter Oakes over 10 years ago in reply to mcb1

    Yes, good point mcb1, that is a good example to refer to

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Cancel
Children
No Data
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2025 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube