[Arduino] ButtonWait - Wait For Button Press Before Further Execution.

Skip to content Search Gists Search Gists All gists Back to GitHub Sign in Sign up Sign in Sign up Dismiss alert {{ message }}

Instantly share code, notes, and snippets.

rahuldottech/1_details.txt Last active August 18, 2022 09:12 Show Gist options

• Download ZIP

• Star 3 (3) You must be signed in to star a gist
• Fork 0 (0) You must be signed in to fork a gist

• Embed Select an option
  • Embed Embed this gist in your website.
  • Share Copy sharable link for this gist.
  • Clone via HTTPS Clone using the web URL.

  No results found

  Learn more about clone URLs Clone this repository at <script src="https://gist.github.com/rahuldottech/839cb13140f24debae8f72343115de4b.js"></script>
• Save rahuldottech/839cb13140f24debae8f72343115de4b to your computer and use it in GitHub Desktop.

Code Revisions 4 Stars 3 Embed Select an option

• Embed Embed this gist in your website.
• Share Copy sharable link for this gist.
• Clone via HTTPS Clone using the web URL.

No results found

Learn more about clone URLs Clone this repository at <script src="https://gist.github.com/rahuldottech/839cb13140f24debae8f72343115de4b.js"></script> Save rahuldottech/839cb13140f24debae8f72343115de4b to your computer and use it in GitHub Desktop. Download ZIP [Arduino] buttonWait - wait for button press before further execution. Raw 1_details.txt This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters Show hidden characters

buttonWait v0.1 by rahuldottech

---------------------------------

(pause a script till a button is, y'know, *pressed*...)

This code is in the public domain.

Proper schematic at https://arduino.stackexchange.com/a/56805/50258

--

Circuit Diagram:

[pin]----|--------------[button]

| |

[10k resistor] |

| |

[ground] [vcc]

--

Usage:

buttonWait(<pin_number>);

Raw 2_code.ino This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters Show hidden characters

/* the function */

void buttonWait(int buttonPin){

int buttonState = 0;

while(1){

buttonState = digitalRead(buttonPin);

if (buttonState == HIGH) {

return;

}

}

}

void loop() {

// put your main code here, to run repeatedly:

buttonWait(2); // wait for button press on pin 2

// do something

// ...

}

Raw 3_example.ino This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters Show hidden characters

/* the function */

void buttonWait(int buttonPin){

int buttonState = 0;

while(1){

buttonState = digitalRead(buttonPin);

if (buttonState == HIGH) {

return;

}

}

}

void setup() {

// put your setup code here, to run once:

pinMode(LED_BUILTIN, OUTPUT); // initialize digital pin LED_BUILTIN as an output.

}

void loop() {

// put your main code here, to run repeatedly:

buttonWait(2); // wait for button press on pin 2

digitalWrite(LED_BUILTIN, HIGH); // turn the LED on

delay(1000); //wait for a second

buttonWait(2); // wait for another button press on pin 2

digitalWrite(LED_BUILTIN, LOW); // turn the LED off

delay(1000); //wait for a second

}

Copy link

mexteele commented Jun 12, 2021

Hey there. I'm trying to use your function to enter an autocalibration program for a sensor.

I successfully made an LCD print some welcome text once the button was pressed.

buttonWait(8);

some code to initialize the calibration process.

However, when I enter another buttonWait(8) to continue (the user will keep pushing the button to continue the process), the first function executes.

Basically, it's as if I can't run 2 buttonWait functions simultaneously. Here is my code.

`void loop() {

while (digitalRead(buttonPin) == HIGH) {

Serial.println("Esperando"); lcd.setCursor(0, 0); lcd.print("Esperando");

} buttonWait(8); lcd.setCursor(0,0); lcd.print("Calibremos"); lcd.setCursor(0,1); lcd.print("el sensor"); delay(10000);

buttonWait(8); lcd.clear(); lcd.setCursor(0,0); lcd.print("Sumerja"); lcd.setCursor(0,1); lcd.print("en agua"); `

Any insights on why this happens?? Thank you.

Uh oh!

There was an error while loading. Please reload this page.

Copy link

mexteele commented Jun 12, 2021

What I'm trying to achieve is a sequential process that advances with each pressing of the same button.

Uh oh!

There was an error while loading. Please reload this page.

Copy link Author

rahuldottech commented Jul 9, 2021

Hey, I'm so sorry for the delayed response. I took a cursory glance, and your code looks okay to me, I don't know why that would be happening.

Did you manage to figure it out?

Uh oh!

There was an error while loading. Please reload this page.

Copy link

mexteele commented Aug 4, 2021

Hey, yes I figured out! Thank you

Uh oh!

There was an error while loading. Please reload this page.

Copy link

oggysaud245 commented Aug 18, 2022

how did you solve it?

Uh oh!

There was an error while loading. Please reload this page.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment You can’t perform that action at this time.