LED color behavior on Android

[thorathome]

Hi Blynk.
I am running on iOS (iPad) and on Android (Google Pixel 3a XL + Android 11).

LED widgets on iOS are working well now. Android still having problems with "color".

Using Blynk.setProperty with "color" works on iOS, not on my Android. With Android, it appears that I need to manually set the LED color at the mobile app for it to respond to the Blynk.setProperty ( ..., "color" ... commands. Once the LED color is manually reset at the app, the LED responds to the Blynk.setPropertycommand as expected. Exiting Blynk on the mobile app and returning sometimes allows the LEDs to misbehave again.

I am using Blynk.virtualWrite, not WidgetLED.

Hope this is helpful. iOS

Android

[alexkipar]

@thorathome can you provide examples of color values sent to the led, maybe it is smth connected to their format

[thorathome]

Yes. The screenshots you saw use

• "color" = "#23C48E" Blynk.setProperty ( Vx, "color", "#23C48E" );
• value = 150 or 0 Blynk.virtualWrite ( Vx, 150 );or Blynk.virtualWrite ( Vx, 150 );
• datastream min/max of 0/255

LED widget "color" works as expected on iOS 14.6 on iPad, not on Android 11.

FYI, the setProperty ... "label"functions appears to work on both iOS and Android.

[alexkipar]

@thorathome it seems we fixed the issue on our side, I suppose we will upload a new version tomorrow or the day after tomorrow

[thorathome]

I am pleased and impressed with the constant progress, will watch for a new Android app. Thanks.

[alexkipar]

@thorathome, a new build with a fix to this issue should be available soon to update

[thorathome]

Hi Blynk team. We're almost there with this fix. I find the Blynk LED widgets work well under iOS (iPad), still have a problem on Android.

Android 11 Google Pixel 3a XL

• and - Android 9 (latest version for this model phone) Samsung Note8

In order for the Android LEDs to work, I have to MANUALLY open the LED widget on the Android device in developer mode and change the LED color from the default. Once that color is reset, the LED works on multiple Androids and stays working. Until I open that widget up and change the color, it does not. These LED widgets were initially set up on an iOS device. I tend to use them with a value of 0 or 150, with Datastream Min/Max of 0/255.

Hope this is helpful.

[thorathome]

But wait, there's more. I am seeing the same behavior on other Android Blynk widgets where they work well on iOS.

The LED, Text Input, and Icon Button widgets all show the same behavior... their colors, as assigned by Blynk.setProperty( Vx, "color", ...) commands, do not change UNLESS the widget's color has been manually reset once at the mobile app. Once the widget's color has been set MANUALLY, the Blynk.setPropertycalls work as expected.

This is true with the latest BlynkSimpleEsp32_SSL.h and BlynkSimpleEsp8266_SSL.h libraries, latest Android Blynk mobile apps, and updated Android operating systems. iOS works fine.

[alexkipar]

@thorathome Icon Button does not support same color change logic: it uses onColor, offColor properties

[alexkipar]

@thorathome, can you send logs after reproducing this issue? We have problems reproducing it on our side.