Having issues getting various things to work on Core

Need Help With My Project
1

Having consistency issues with Blynk and Photon. Right now here is my state:

-I can post things to a terminal widget during events
-I cannot set LED widgets to on at ANY point
-I cannot post to a terminal widget when the Photo wakes up or before it goes to sleep even when running Blynk.run(); right after

I tried setting the LED to ON both inside of a function and inside of loop() (using a one time state boolean variable so not to flood the system). I tried using both setValue(255) and on(). Not understanding the inconsistency here.

I also just tried Blynk.virtualWrite(1, 255); to turn the LED on and that isn’t working either.

2

post your code pleas

Just checked everything - works like a charm on Photon

3

@pavel The code part or a larger project. I’m trying to integrate blynk into it. I’ll cut out what isn’t necessary…

I cut out other code around it, but in this example the terminal never receives that string and the LED never turns on.

// This #include statement was automatically added by the Particle IDE.
#include "blynk/blynk.h"

char auth[] = "xxxxxxxxxxxxxxxxxxxxx";

WidgetTerminal terminal(V3);
WidgetLED led1(V1);
bool firstRun = true;

void setup() {
    Blynk.begin(auth);
}

void loop() {
    if (firstRun == true) {
	    blynkStartup();
    }
    terminal.flush();
    Blynk.run();
}

void blynkStartup() {
    led1.on();
    //led1.setValue(255);
    //Blynk.virtualWrite(1, 255);
	terminal.println("Woke up");
	firstRun = false;
}
4

Hello, please try next :

void setup() {
    Blynk.begin(auth);
    while (Blynk.connect() == false) {
         // Wait until connected
    }
}

Also

void loop() {
    terminal.flush();
}

No allowed in main loop. It may cause flood error.

5

What is not allowed in the main loop? Also, I’ve tried waiting for a connection in setup already.

6

Just tried this… same result. I don’t understand what I’m doing wrong.

Also, that brings me to another question. If I set a virtual PIN on the Core before it connected to Blynk, will that PIN state reach the server/app when it does connect or is it lost forever? Also, how about when setting a virtual PIN on the app?

Here is my new code that still doesn’t do anything:

// This #include statement was automatically added by the Particle IDE.
#include "blynk/blynk.h"

char auth[] = "0968761e711c4d6caf298821372815c9";

WidgetTerminal terminal(V3);
WidgetLED led1(V1);
bool firstRun = true;

void setup() {
    Blynk.begin(auth);
    
    while (Blynk.connect() == false) {
        // Wait until connected
    }
}

void loop() {
    if (firstRun == true) {
        blynkStartup();
    }
    
    Blynk.run();
}

void blynkStartup() {
    led1.on();
    //led1.setValue(255);
    //Blynk.virtualWrite(1, 255);
    terminal.println("Woke up");
    terminal.flush();
    firstRun = false;
}
7

Just tried this now:

// This #include statement was automatically added by the Particle IDE.
#include "blynk/blynk.h"

char auth[] = "0968761e711c4d6caf298821372815c9";

WidgetTerminal terminal(V3);
WidgetLED led1(V1);
bool firstRun = true;

void setup() {
    Blynk.begin(auth);
}

void loop() {
    if (firstRun == true and Blynk.connected() == true) {
        blynkStartup();
    }
    
    Blynk.run();
}

void blynkStartup() {
    led1.on();
    //led1.setValue(255);
    //Blynk.virtualWrite(1, 255);
    terminal.println("Woke up");
    terminal.flush();
    firstRun = false;
}
8

I moved this to a Photon and it started working, but only if I had my .connected()==true condition in place. Seems this works on a Photon, but not the Core.

EDIT: Very odd but this started working after a while on both. Very odd. I does seem like Blynk commands that happen on the device side before a connection is established are dropped. Guess we have to do our own caching in the code if we don’t want to do a ‘while’ loop waiting for a successful connection.