interrupting a loop with a button push

[debriscreator]

Hello,

I was wondering the best way to go about interrupting a loop with a button push.. heres my code. It's towards the bottom... right now its not working. thanks in advance.

Code: [Select all] [Expand/Collapse]

1. void processSlackMessage(String receivedpayload){
2.  
3.   DynamicJsonDocument doc(1024);
4.   deserializeJson(doc, receivedpayload);
5.   DeserializationError error = deserializeJson(doc, receivedpayload);
6.   if (error) {
7.     Serial.print(F("deserializeJson() failed with code "));
8.     Serial.println(error.c_str());
9.     return;
10.   }
11.   JsonObject obj = doc.as<JsonObject>();
12.   String type_msg = obj["type"];
13.   String texto = obj["text"];
14.   String channel = obj["channel"];
15.   if(type_msg.equals("message")){
16.     Serial.println(type_msg + " "+ channel + " " + texto);
17.     tft.fillScreen(TFT_BLACK);
18.     tft.setTextColor(TFT_GOLD);
19.     tft.drawString("======Alert======", 10, 20, GFXFF);
20.     tft.drawString(texto, 10, 40, GFXFF);
21.    
22.     for (int i = 0; i <= 5; i++){
23.       buttonState=digitalRead(buttonPin);
24.       if (buttonState == LOW){
25.        i=0;
26.        break;
27.     }
28.     else {
29.       digitalWrite(vibePin, HIGH);  
30.       delay(1000);          
31.       digitalWrite(vibePin, LOW);  
32.       delay(500); }
33.     }
34.  }
35. }

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[ESP_Dazz]

• If you want your loop to be indefinitely blocking on the interrupt, you can have the loop block an a semaphore that is given by the ISR
• If you don't want your loop to be blocking, simply poll some global variable but with an adequate delay so that other tasks get a share CPU time. Don't forget to make that variable volatile.