Blynk.setProperty Styled Button

[Badge]

I am trying to set the “offBackColor” on my styled button, the color and label will not change when I call it from my procedure. However it will only change if I physically touch the button at BLYNK_WRITE(V14) in my code. Why will it not change.

I have done some background searching at the links below and more but no solution…

Button set property blynk in node red

The documentation is fairly self explanatory… Blynk set property node. This node will write the value in payload to specified property at the specified pin number. “Pin mode” selects whether the pin number is fixed or dynamic Fixed, select the pin number in the interface Dynamic, the pin number is passed through msg.pin property Use the node property by select on menu or override using msg.prop To set multiple properties use this syntax: msg.label to set the Label property msg.color …

Styled Button (custom colours/intensity) - #3 by Gunner

    //END OF MANUAL
     xor_result = nowseconds ^ Prog_1_Zone_Timer[13]; //check if end of Manual 
     if(xor_result == 0){ // Zone 4 end time
       Serial.println("end of manual");
       Blynk.setProperty(V14, "offBackColor", BLYNK_YELLOW);
       Blynk.setProperty(V14, "offLabel", "OFF");
       Blynk.virtualWrite(V41,"  --:--:--");
     }

//...........................................................................................................................
//Manual Overide
BLYNK_WRITE(V14){ 
  
    if (param.asInt()== 1){
      Prog_1_Total_Time(2); // calculate manual end time
      Setup_Time_Table(nowseconds); // manual start Prog 1
      Update_Zone_PROG_1(); // start the timer
    }
    else{
      Blynk.setProperty(V14, "offBackColor", BLYNK_YELLOW);
      Blynk.setProperty(V14, "offLabel", "OFF");
      Blynk.virtualWrite(V41,"  --:--:--");
    }
    
 }

[PeteKnight]

Is your button in the Off state when you are applying these changes?

This statement…

@Badge

it will only change if I physically touch the button at BLYNK_WRITE(V14)

implies that it’s On, and touching it will turn it Off and use the new properties.

Are you meaning that you only see the changes if you turn the button On then Off again?
If so, what happens if you do a Blynk.virtualWrite(V14,0); after your setProperty commands?

Pete.

[Badge]

Thanks Pete,
Brilliant Blynk.virtualWrite(V14,0) worked. But I don’t understand why, is it documented somewhere? Maybe I missed it…

[PeteKnight]

It was just an idea to get the button widget to refresh itself - glad it worked!

Pete.