Value Display Widget giving strange results

Solved
1

Hello,

I have this problem in my bigger program - so I wrote a “minimal” version (see below) in order to strip out confusing details.
Value Display Widget V44 (4th Value Display Widget) is giving a “ghost result” that differs from Serial Window value and the values of other 3 similar widgets Also tried to change virtual pin to eg. V49 - same result.

I see this kind of topic is already existing but it is not marked as SOLVED.

Thank You

   #define BLYNK_PRINT Serial

    #include <ESP8266WiFi.h>
    #include <BlynkSimpleEsp8266.h>

    #include <SimpleTimer.h>
    #include <stdlib.h>

    char auth[] = "11482ce5975xxxxd64ee73fd3f7";  //Testing

    char ssid[] = "DOxxxf0574";
    char pass[] = "oaxxxeij";

    SimpleTimer timer;


    //RGBW values for each mode:
    int pinArr[4][4] = {
      {240,0,0,0},        //mode 1, RGBW ...
      {0,240,0,0},
      {0,0,240,55},  
      {0,0,0,220},       // N/A
    };

    void setup()
    {
      // Debug console
      Serial.begin(115200);

      Blynk.begin(auth, ssid, pass);


    //  Serial.println(pinArr[2][0]);
    //  Serial.println(pinArr[2][1]);
    //  Serial.println(pinArr[2][2]);

      Serial.println(pinArr[3][3]); //  showing 220 -ok
      
      Blynk.virtualWrite(V41, pinArr[3][3]); // showing 220 -ok
      Blynk.virtualWrite(V42, pinArr[3][3]); // showing 220 -ok
      Blynk.virtualWrite(V43, pinArr[3][3]); // showing 220 -ok
      Blynk.virtualWrite(V44, pinArr[3][3]); // showing 5--------------- ???? 
      
          Blynk.virtualWrite(V41, String(pinArr[3][3])); // showing 220 -ok
          Blynk.virtualWrite(V42, String(pinArr[3][3])); // showing 220 -ok
          Blynk.virtualWrite(V43, String(pinArr[3][3])); // showing 220 -ok
          Blynk.virtualWrite(V44, String(pinArr[3][3])); // showing 5------------- ???? 

      
    }

    void loop()
    {
      Blynk.run();
      timer.run();
    }
2

Strange. I just tested your code and it works just fine. Try to manually change V44 value to something else, like 111 to check that hardware actually writes to V44.

3

I tried following:

  1. Changed last item in the array from 220 to 111 - V44 shows now 2 - all othes are ok
  2. Changed the hardware to “factory fresh” (both are Wemos D1 R2) - same result
  3. Changed BlynkVirtualWrite to 111 (not array item) - same result
  4. Tried 1-3 with value 222 - V44 shows 5 - all others ok.
  5. Also tried all above with phone and tablet - same results.

Sidesync_capture_20180207194829_1
Sidesync_capture_20180207194829_1.jpg540×960 31.5 KB

4

Maybe you have other device or http request that overrides it?

5

I have another project having V44. I changed V44 to V90 in this “testing” project. I know for sure V90 is not in use anywhere else. I also tried some other Vxx alternatives - the problem remains the same. No http requests.
It is interesting the “ghost” value changes from 5 to 2 depending on the “real” value.
More suggestions please?

6

Not really sure what you are doing, what with sending data twice to your four vPins. overriding the 1st with the 2nd, but I just dumped your sketch into my Wemos and it looks like did whatever it was supposed to do… Here are the results…

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2018-02-07 16.51.18.png800×395 15.4 KB

26
2018-02-07 16.51.26.png800×395 18.6 KB

Looks like somethings goofy on your end.

PS, probably unrelated… but you are still using SimpleTimer? BlynkTimer is now “built in”

7

Have you checked that your V44 display widget is connected to the correct device in the Source settings for your widget?

Pete.

8

Sending data twice to four pins is only for show my two different (with/without String()) testing scenes. Only one block is active when actually running sketch. No difference - problem persists.

9

OK, I initially ran the sketch exactly as shown above (just with my WiFi / Auth settings of course)… no problems at all after repeated tests.

I have since played around with various combinations of clearing the values before displaying the array data, changing the array data, etc. All still working perfectly. But now I have a better understanding of arrays :stuck_out_tongue: I had never really worked with them before… Quite neat and useful I see.

You must have something unique at your end that is causing your issue. Confirm latest App & library versions and possibly remove/recreate Widgets, etc.

Perhaps even make a new project with JUST those four widgets, with vPins numbered the same way, and using your example sketch above… just like I did.

10

Solved!
I followed instructions by @Gunner and simply recreated this “ghost” widget.

I should have done this at first place, but after a quite heavy working with Blynk widgets this kind of problem fixing had never before been necessary for me.

Thanks to everybody for nice conversation!

1 Like
11

Thanks for the update. Anyway, the issue is very strange. I don’t really see the way it may happen. If you see this issue again - please tell us. We will try to investigate further.