How to enable BLYNK_DEBUG on Raspberry Pi with node.js?

Hello =)

My Question is: How to enable Blynk debugging in Javascript? Details below :wink:

I have built a home automation system with many ESP8266 and one Raspberry Pi, which is a Blynk client that handles the bridges to all the ESPs.
I use the Pi because the ESPs stop working, if I add more then 4 bridge-widgets on them.

On the Pi I use the node.js Blynk client and forever to keep it running all the time.

My Script works flawlessly for a few days and then stops working.
It starts disconnecting from Blynk-Cloud and reconnecting every second. The forever logfile shows:

    Connecting to: blynk-cloud.com 8441
    Connecting to: blynk-cloud.com 8441
    SSL authorization...
    SSL authorization...
    Connected
    Connected
    Connecting to: blynk-cloud.com 8441
    Connecting to: blynk-cloud.com 8441
    SSL authorization...
    SSL authorization...
    Connected
    Connected
    Connecting to: blynk-cloud.com 8441
    Connecting to: blynk-cloud.com 8441
    SSL authorization...
    SSL authorization...
    Connected
    Connected
    Connecting to: blynk-cloud.com 8441
    Connecting to: blynk-cloud.com 8441
    SSL authorization...
    SSL authorization...
    Connected
    Connected
    Connecting to: blynk-cloud.com 8441
    Connecting to: blynk-cloud.com 8441
    SSL authorization...
    SSL authorization...
    Connected
    Connected
    Connecting to: blynk-cloud.com 8441
    Connecting to: blynk-cloud.com 8441
    SSL authorization...
    SSL authorization...
    Connected
    Connected
    Connecting to: blynk-cloud.com 8441
    Connecting to: blynk-cloud.com 8441
    SSL authorization...
    SSL authorization...
    Connected
    Connected
    Connecting to: blynk-cloud.com 8441
    Connecting to: blynk-cloud.com 8441
    SSL authorization...
    SSL authorization...
    Connected
    Connected
    Connecting to: blynk-cloud.com 8441
    Connecting to: blynk-cloud.com 8441
    SSL authorization...
    SSL authorization...
    Connected
    Connected
    Connecting to: blynk-cloud.com 8441
    Connecting to: blynk-cloud.com 8441
    SSL authorization...
    SSL authorization...
    Connected
    Connected

My Script is this. Notice: I use 2 blynk clients for different projects. But since the script is working for a few days, I don’t think that that causes the problem.

   var BlynkLib = require('blynk-library');
   
//DHT22
    var sensorLib = require('node-dht-sensor');
    // Setup sensor, exit if failed
    var sensorType = 22; // 11 for DHT11, 22 for DHT22 and AM2302
    var sensorPin  = 4;  // The GPIO pin number for sensor signal
    if (!sensorLib.initialize(sensorType, sensorPin)) {
        console.warn('Failed to initialize DHT22 sensor');
        process.exit(1);
    }
    // Standard Blynk
    var blynk = new BlynkLib.Blynk('xxx');

    // Pi-Projekt Blynk
    var blynk2 = new BlynkLib.Blynk('xxx');

    // Blynk terminal
    var terminal = new blynk.WidgetTerminal(126);

    // Pi-Projekt Blynk terminal
    var terminal2 = new blynk2.WidgetTerminal(124);

    // Bridges
    var bridge_board1 = new blynk.WidgetBridge(100);
    var bridge_board2 = new blynk.WidgetBridge(101);
    var bridge_socket_1_stehlampe =  new blynk.WidgetBridge(102);
    var bridge_normal1 = new blynk.WidgetBridge(103);
    var bridge_th16_1_haustuer = new blynk.WidgetBridge(104);
    var bridge_TH16_2_Spiegelschrank = new blynk.WidgetBridge(105);
    var bridge_TH16_3_Schuppen = new blynk.WidgetBridge(106);
    var bridge_touch_bad = new blynk.WidgetBridge(107);
    var bridge_touch_1_flur = new blynk.WidgetBridge(108);
    var bridge_touch_2_wohnzimmer1 = new blynk.WidgetBridge(109);
    var bridge_touch_3_kueche = new blynk.WidgetBridge(110);
    var bridge_touch_4 = new blynk.WidgetBridge(111);


    // Switch all lights
    var allLightsOn = new blynk.VirtualPin(1);
    var allLightsOff = new blynk.VirtualPin(2);

    allLightsOn.on('write', function(param) {  
        switchAllLightsOn(param);   
    });
    function switchAllLightsOn(param) {
        terminal.write('Turn on all Lights. Param: ' + param + '\n'); 
        
        // Send value 1 to vPin 122 on the ESPs to turn on the light
        bridge_socket_1_stehlampe.virtualWrite(122, param);
        bridge_normal1.virtualWrite(122, param);
        bridge_th16_1_haustuer.virtualWrite(122, param);
        bridge_TH16_2_Spiegelschrank.virtualWrite(122, param);
        bridge_TH16_3_Schuppen.virtualWrite(122, param);
        bridge_touch_bad.virtualWrite(122, param);
        bridge_touch_1_flur.virtualWrite(122, param);
        bridge_touch_2_wohnzimmer1.virtualWrite(122, param);
        bridge_touch_3_kueche.virtualWrite(122, param);
        bridge_touch_4.virtualWrite(122, param);    
    }

    allLightsOff.on('write', function(param) {  
        switchAllLightsOff(param);
    });
    function switchAllLightsOff(param) {
        terminal.write('Turn all lights off. Param: ' + param + '\n'); 
        
        // Send value 1 to vPin 123 on the ESPs to turn off the light
        bridge_socket_1_stehlampe.virtualWrite(123, param);
        bridge_normal1.virtualWrite(123, param);
        bridge_th16_1_haustuer.virtualWrite(123, param);
        bridge_TH16_2_Spiegelschrank.virtualWrite(123, param);
        bridge_TH16_3_Schuppen.virtualWrite(123, param);
        bridge_touch_bad.virtualWrite(123, param);
        bridge_touch_1_flur.virtualWrite(123, param);
        bridge_touch_2_wohnzimmer1.virtualWrite(123, param);
        bridge_touch_3_kueche.virtualWrite(123, param);
        bridge_touch_4.virtualWrite(123, param);
    }


    // Floor-Lights on
    var floorLights = new blynk.VirtualPin(3);

    floorLights.on('write', function(param) {  
        
        terminal.write('Switch Floorlights. Param: ' + param + '\n'); 
        
        // turn on the lights in the floor        
        if (param == 1) {
            bridge_socket_1_stehlampe.virtualWrite(122, 1);
            bridge_touch_2_wohnzimmer1.virtualWrite(122, 1);
            bridge_touch_1_flur.virtualWrite(122, 1);
            bridge_touch_bad.virtualWrite(122, 1);  
        } else if (param == 0) {
            // turn off the lights in the floor
            bridge_socket_1_stehlampe.virtualWrite(123, 1);
            bridge_touch_2_wohnzimmer1.virtualWrite(123, 1);
            bridge_touch_1_flur.virtualWrite(123, 1);
            bridge_touch_bad.virtualWrite(123, 1);  
        }
    });


    //Alarm-Modus
    var timer_alarmModus;
    var i = 0;

    var alarmModus = new blynk.VirtualPin(0);

    alarmModus.on('write', function(param) {  
        
        terminal.write('Alarm-Modus. Param: ' + param + '\n'); 
        
        if (param == 1) {
            timer_alarmModus = setInterval(function() { lightshow() }, 200);        
        } else if (param == 0) {
            clearInterval(timer_alarmModus);
            allLightsOff(1);
        }
    });
    // Let all the lights blink after each other and then togehter
    function lightshow() {  
        if (parseInt(i) == parseInt(0)) {
            bridge_touch_2_wohnzimmer1.virtualWrite(122, 1);
            i ++;
        } else if (parseInt(i) == parseInt(1)) {      
            bridge_touch_2_wohnzimmer1.virtualWrite(123, 1);
            bridge_socket_1_stehlampe.virtualWrite(122, 1);
            i ++;
        } else if (parseInt(i) == parseInt(2)) {
            bridge_socket_1_stehlampe.virtualWrite(123, 1);
            bridge_touch_1_flur.virtualWrite(122, 1);
            i ++;
        } else if (parseInt(i) == parseInt(3)) {
            bridge_touch_1_flur.virtualWrite(123, 1);
            bridge_TH16_3_Schuppen.virtualWrite(122, 1);
            i ++;
        } else if (parseInt(i) == parseInt(4)) {
            bridge_TH16_3_Schuppen.virtualWrite(123, 1);
            bridge_th16_1_haustuer.virtualWrite(122, 1);
            i ++;
        } else if (parseInt(i) == parseInt(5)) {
            bridge_th16_1_haustuer.virtualWrite(123, 1);
            bridge_touch_3_kueche.virtualWrite(122, 1);    
            i ++;
        } else if (parseInt(i) == parseInt(6)) {
            bridge_touch_3_kueche.virtualWrite(123, 1);
            bridge_normal1.virtualWrite(122, 1);
            i ++;
        } else if (parseInt(i) == parseInt(7)) {
            bridge_normal1.virtualWrite(123, 1);
            bridge_touch_bad.virtualWrite(122, 1);
            i++;
        } else if (parseInt(i) == parseInt(8)) {
            bridge_touch_bad.virtualWrite(123, 1);
            switchAllLightsOff(1);
            i++;
        } else if (parseInt(i) == parseInt(9)) {
            switchAllLightsOn(1);
            i++;
        } else if (parseInt(i) == parseInt(10)) {
            switchAllLightsOff(1);
            i++;
        } else if (parseInt(i) == parseInt(11)) {
            switchAllLightsOn(1);
            i++;
        } else if (parseInt(i) == parseInt(12)) {
            switchAllLightsOff(1);
            i++;
        } else if (parseInt(i) == parseInt(13)) {
            switchAllLightsOn(1);
            i++;
        } else if (parseInt(i) == parseInt(14)) {
            switchAllLightsOff(1);
            i = 0;
        }
    }


    // Window states
    //Bathroom
    var windows_bath_isOpen;
    var timer_windows_bath_isOpen;
    var timer_humidity_warning_bathroom;

    // Receive the window-state from a ESP with a reed-switch mounted to the window
    var vPinWindow = new blynk.VirtualPin(22);

    vPinWindow.on('write', function(param) {  
        
        terminal.write('Window state received. Param: ' + param + '\n'); 
        
        //Bathroom
        if (param == 0) {
            
            // Fenster geoeffnet
            terminal.write('Window opened' + '\n');
            
            windows_bath_isOpen = true;
            
            // Start 30min Timer that notifies, if the windows has not been closed yet
            timer_windows_bath_isOpen = setTimeout(notify_window_bathroom, 1800000);
            
            // Stop timer because window has been opened
            clearTimeout(timer_humidity_warning_bathroom);
            
        } else if (param == 1) {
            
            // Window has been closed
            terminal.write('Window closed' + '\n');
            
            windows_bath_isOpen = false;
            
            // Stop the timer
            clearTimeout(timer_windows_bath_isOpen);
            
        } else if (param == 3) {
            
            // RTC Memory state of the ESP is undefined
            blynk.notify("ERROR! Undefined RTC state at the ESP at the window!");
            
        }
    });

    // Method notifies if the window is still open
    function notify_window_bathroom() {
        console.log("Send Blynk.notify, window is still open.");
        blynk.notify("Window bathroom is still open");
    }


    // Battery state
    var battery_ESP_reed1_bathroom;

    var vPinBattery_bathroom = new blynk.VirtualPin(25);
    vPinBattery_bathroom.on('write', function(param) {  
        
        terminal.write('Received Battery state. Reed1_Bathroom. Param: ' + param + '\n'); 
        console.log('Received Battery state. Reed1_Bathroom:', param);
        battery_ESP_reed1_bathroom = param;
        
        // Send battery state to Blynk-Pi-Project
        blynk2.virtualWrite(50, parseInt(battery_ESP_reed1_bathroom) / parseInt(10));
    });


    // Temperatures, humidity etc
    var temp_kitchen;
    var humid_kitchen;

    var temp_outside;
    var humid_outside;
    var pressure_outside;

    var temp_door;

    var temp_bath;
    var humid_bath;

    var temp_bedroom;
    var humid_bedroom;

    var temp_floor;
    var humid_floor;
    var pressure_floor;

    var vPin_Temp_Outside = new blynk.VirtualPin(50);
    var vPin_Humid_Outside = new blynk.VirtualPin(51);
    var vPin_Pressure_Outside = new blynk.VirtualPin(52);

    var vPin_Temp_door = new blynk.VirtualPin(55);

    var vPin_Temp_Bathroom = new blynk.VirtualPin(60);
    var vPin_Humid_Bathroom = new blynk.VirtualPin(61);

    var vPin_Temp_bedroom = new blynk.VirtualPin(80);
    var vPin_Humid_bedroom = new blynk.VirtualPin(81);

    var vPin_Temp_Floor = new blynk.VirtualPin(85);
    var vPin_Humid_Floor = new blynk.VirtualPin(86);
    var vPin_Pressure_Floor = new blynk.VirtualPin(87);

    vPin_Temp_Outside.on('write', function(param) {  
        
        terminal2.write('Temp received: ' + param + '\n');     
        temp_outside = param;
    });
    vPin_Humid_Outside.on('write', function(param) {  
        
        terminal2.write('Humidity received: ' + param + '\n');     
        humid_outside = param;
    });
    vPin_Pressure_Outside.on('write', function(param) {  
        
        terminal2.write('Airpressure hpa received: ' + param + '\n');     
        pressure_outside = param;
    });

    vPin_Temp_door.on('write', function(param) {  
        
        terminal2.write('Temp received: ' + param + '\n');     
        temp_door = param;
    });

    vPin_Temp_Bathroom.on('write', function(param) {  
        
        terminal2.write('Temp received: ' + param + '\n');     
        temp_bath = param;
    });
    vPin_Humid_Bathroom.on('write', function(param) {  
        
        terminal2.write('Humidity received: ' + param + '\n');     
        humid_bath = param;
        
        checkVentilateBathroom();
    });

    vPin_Temp_bedroom.on('write', function(param) {  
        
        terminal2.write('Temperature received: ' + param + '\n');     
        temp_bedroom = param;
    });
    vPin_Humid_bedroom.on('write', function(param) {  
        
        terminal2.write('Humidity received: ' + param + '\n');     
        humid_bedroom = param;    
    });

    vPin_Temp_Floor.on('write', function(param) {  
        
        terminal2.write('Temp received: ' + param + '\n');     
        temp_floor = param;
    });
    vPin_Humid_Floor.on('write', function(param) {  
        
        terminal2.write('Humid received: ' + param + '\n');     
        humid_floor = param;
    });
    vPin_Pressure_Floor.on('write', function(param) {  
        
        terminal2.write('Airpressure hpa received ' + param + '\n');     
        pressure_floor = param;
    });


    //DHT22 directly attached to the Pi
    // Automatically update sensor value every 30 seconds
    setInterval(function() {
        var readout = sensorLib.read();
        
        temp_kitchen = readout.temperature.toFixed(1);
        humid_kitchen = readout.humidity.toFixed(1);
        
        blynk.virtualWrite(48, readout.temperature.toFixed(1));
        blynk.virtualWrite(46, readout.temperature.toFixed(1));
        blynk.virtualWrite(44, readout.temperature.toFixed(1));
        blynk.virtualWrite(49, readout.humidity.toFixed(1));
        blynk.virtualWrite(47, readout.humidity.toFixed(1));
        blynk.virtualWrite(45, readout.humidity.toFixed(1));
        
        terminal2.write('Temperature kitchen:' + readout.temperature.toFixed(1) + 'C' + '\n');
        terminal2.write('Humidity Kitchen: ' + readout.humidity.toFixed(1) + '%' + '\n');
        
        checkVentilateKitchen();
        checkColdKitchen();
        checkFrostKitchen();
        
    }, 30000);

    // Methods for checking if warings are neccessary
    // Humidity
    function checkHumid(humid_in, warned_humid_in) {
        
        var warn_humid = warned_humid_in;
        
        if (parseFloat(humid_in) > parseFloat(63.0)) {        
            warn_humid = true;        
        } else if (parseFloat(humid_in) < parseFloat(58.0)) {
            warn_humid = false;        
        } 
        
        return warn_humid;    
    }
    // Cold
    function checkCold(temp_in, warned_temp_in) {
        
        var warn_temp = warned_temp_in;
        
        if (parseFloat(temp_in) < parseFloat(12.0)) {        
            warn_temp = true;        
        } else if (parseFloat(temp_in) > parseFloat(16.0)) {
            warn_temp = false;        
        } 
        
        return warn_temp;    
    }
    // Frost
    function checkFrost(temp_in, warned_frost_in) {
        
        var warn_frost = warned_frost_in;
        
        if (parseFloat(temp_in) < parseFloat(2.0)) {        
            warn_frost = true;        
        } else if (parseFloat(temp_in) > parseFloat(6.0)) {
            warn_frost = false;        
        } 
        
        return warn_frost;    
    }


    // Ventilation-Notices
    // Bathroom
    var warned_humid_bathroom = false;
    function checkVentilateBathroom() {
        
        // Too high humidity in bathroom
        if (checkHumid(humid_bath, warned_humid_bathroom)) {
            terminal.write('Too high humidity in bathroom.' + '\n');
            
            // Start timer that notifies if the window isnt opened within 20 minutes
            if (!windows_bath_isOpen) {
                terminal.write('Window is not opened.' + '\n'); 
                
                // Start timer only if humidity outside is less than inside
                if (parseFloat(humid_outside) < parseFloat(humid_bath)) {
                    terminal.write('Humidity outside is below inside.' + '\n'); 
                    
                    if (!warned_humid_bathroom) {
                        terminal.write('Not warned yet. Start Timer.' + '\n'); 
                        warned_humid_bathroom = true;
                        
                        timer_humidity_warning_bathroom = setTimeout(notifiy_humidity_bathroom, 1200000);    
                    }
                }        
            }
            
        } else if (!checkHumid(humid_bath, warned_humid_bathroom)) {
            terminal.write('Humidity bathroom OK.' + '\n'); 
            if (warned_humid_bathroom) {
                terminal.write('Timer has already been started, stop the timer.' + '\n'); 
                warned_humid_bathroom = false;
                // Humidity OK in bathroom
                // Stop timer, humidity is back to normal
                clearTimeout(timer_humidity_warning_bathroom);
            }
        }
    }
    // Method notifies and tells to ventilate the bathroom
    function notifiy_humidity_bathroom() {
        console.log("Sending blynk.notifiy to ventilate the bathroom");
        terminal.write('Sending blynk.notifiy to ventilate the bathroom.' + '\n'); 
        blynk.notify("Humidity too high in bathroom, please ventilate!");
    }

    // Kitchen
    // Humidity
    var warned_humid_kitchen = false;
    var timer_warn_humidity_kitchen;
    function checkVentilateKitchen() {
        
        // Humidity too high
        if (checkHumid(humid_kitchen, warned_humid_kitchen)) {
            terminal2.write('Humid kitchen too high.' + '\n');               
            
                        
            // Start timer if humidity outside is below inside
            if (parseFloat(humid_outside) < parseFloat(humid_kitchen)) {
                terminal2.write('Humidity outside is below inside.' + '\n'); 
                
                if (!warned_humid_kitchen) {
                    terminal2.write('Not yet warned. Start Timer Kitchen.' + '\n'); 
                    warned_humid_kitchen = true;
                    
                    // Let the Sonoff Touch-LED in the kitchen blink
                    // Send param 1 to vPin 5 on the Sonoff touch
                    bridge_touch_3_kueche.virtualWrite(5, 1);
                    
                    timer_warn_humidity_kitchen = setTimeout(notify_humidity_kitchen, 600000);    
                }
                //  }        
            }
            
        } else if (!checkHumid(humid_kitchen, warned_humid_kitchen)) {
            terminal2.write('Humidity kitchen OK.' + '\n'); 
            if (warned_humid_kitchen) {
                terminal2.write('Timer has been started, stop timer kitchen.' + '\n'); 
                warned_humid_kitchen = false;
                                
                // Stop the blinking LED on the Sonoff touch
                // Send param 0 to vPin 5 of the Touch
                bridge_touch_3_kueche.virtualWrite(5, 0);
                
                // Stop the timer because humidity is OK now
                clearTimeout(timer_warn_humidity_kitchen);
            }
        }
    }
    // Method warns if humidity is too high in the kitchen
    function notify_humidity_kitchen() {
        console.log("Sending blynk.notify humid kitchen");
        blynk.notify("Humidity in kitchen too high, please ventilate!");
    }
    // Temperature (Cold)
    var warned_cold_kitchen = false;
    function checkColdKitchen() {
        
        // too cold
        if (checkCold(temp_kitchen, warned_cold_kitchen)) {
            terminal2.write('Too cold in the kitchen.' + '\n');                
            if (!warned_cold_kitchen) {
                terminal2.write('Not warned yet, notify now.' + '\n'); 
                warned_cold_kitchen = true;
                
                notify_cold_kitchen();
            }
        } else if (!checkCold(temp_kitchen, warned_cold_kitchen)) {
            terminal2.write('Not too cold in the kitchen.' + '\n'); 
            if (warned_cold_kitchen) {
                terminal2.write('Already warned.' + '\n'); 
                warned_cold_kitchen = false;            
            }
        }
    }
    // Method sends blynk.notify if too cold in the kitchen
    function notify_cold_kitchen() {
        console.log("Sending Blynk.notify");
        blynk.notify(unescape("Too cold in the kitchen!"));
    }
    // Temperature (Frost)
    var warned_frost_kitchen = false;
    function checkFrostKitchen() {
        
        // Frost!!!
        if (checkCold(temp_kueche, warned_frost_kitchen)) {
            terminal2.write('Way too cold in the kitchen!!!' + '\n');                
            if (!warned_frost_kitchen) {
                terminal2.write('Not yet warned, send blynk notify.' + '\n'); 
                warned_frost_kitchen = true;
                
                // Let the LED on the Sonoff Touch blink
                bridge_touch_3_kueche.virtualWrite(5, 1);
                
                notify_frost_kitchen();
            }
        } else if (!checkCold(temp_kitchen, warned_frost_kitchen)) {
            terminal2.write('No Frost in the kitchen.' + '\n'); 
            if (warned_frost_kitchen) {
                terminal.write('Already notified about frost in the kitchen.' + '\n'); 
                warned_frost_kitchen = false;
                
                // Stop blinking LED on the Sonoff Touch
                bridge_touch_3_kueche.virtualWrite(5, 0);            
            }
        }
    }
    // Method sends blynk.notify if its way too cold in the kitchen
    function notify_frost_kitchen() {
        console.log("Sending Blynk.notify");
        blynk.notify(unescape("WARNING!!! Frost in the Kitchen!!!"));
    }


    blynk.on('connect', function() {
        
        // Connect Bridges
        bridge_board1.setAuthToken("xxx"); // Place the AuthToken of the second hardware here  
        bridge_board2.setAuthToken("xxx"); // Place the AuthToken of the second hardware here  
        bridge_socket_1_stehlampe.setAuthToken("xxx"); // Place the AuthToken of the second hardware here
        bridge_normal1.setAuthToken("xxx"); // Place the AuthToken of the second hardware here
        bridge_th16_1_haustuer.setAuthToken("xxx"); // Place the AuthToken of the second hardware here
        bridge_TH16_2_Spiegelschrank.setAuthToken("xxx"); // Place the AuthToken of the second hardware here  
        bridge_TH16_3_Schuppen.setAuthToken("xxx");
        bridge_touch_bad.setAuthToken("xxx"); // Place the AuthToken of the second hardware here
        bridge_touch_1_flur.setAuthToken("xxx"); // Place the AuthToken of the second hardware here
        bridge_touch_2_wohnzimmer1.setAuthToken("xxx"); // Place the AuthToken of the second hardware here
        bridge_touch_3_kueche.setAuthToken("xxx"); // Place the AuthToken of the second hardware here
        bridge_touch_4.setAuthToken("xxx"); // Place the AuthToken of the second hardware here
        
        terminal.write('Raspberry Pi ready.' + '\n');    
        
        //blynk.syncAll();
    });

    blynk.on('disconnect', function() { console.log("Raspberry Pi disconnected"); });




    blynk2.on('connect', function() {
        
        terminal2.write('Raspberry Pi-Project ready.' + '\n');    
        
        //blynk.syncAll();
    });

    blynk2.on('disconnect', function() { console.log("Raspberry Pi-Project disconnected"); });

@vshymanskyy please help.

1 Like

Has nobody else used debugging with the node-js blynk client?

Any help would be appreciated =)

Since this is a very basic use-case, it may be useful for others if you could add debugging to an example at github .

Thanks in advance

Blynk debug is not supported in JS yet.
It’s a minor feature, I can add it in next release. Please watch this issue for the news:

1 Like

Thank you very much, thats awesome!

Has anyone else an idea what’s wrong with my script?
At the moment it is running since 2 days and had some reconnects.
In the logs i found the following uncaught error (EDIT: which happens when the Pi has no internet connection for a short time):

Disconnect blynk
Raspberry Pi-Projekt getrennt
Connecting to: blynk-cloud.com 8441
SSL authorization...
Connected
events.js:166
      throw err;
      ^

Error: Uncaught, unspecified "error" event. (ECONNRESET)
    at Blynk.emit (events.js:164:17)
    at Blynk.error (/usr/lib/node_modules/blynk-library/blynk.js:590:8)
    at exports.SslClient.<anonymous> (/usr/lib/node_modules/blynk-library/blynk.js:553:48)
    at emitOne (events.js:96:13)
    at exports.SslClient.emit (events.js:189:7)
    at TLSSocket.<anonymous> (/usr/lib/node_modules/blynk-library/blynk-node.js:204:16)
    at emitOne (events.js:96:13)
    at TLSSocket.emit (events.js:189:7)
    at emitErrorNT (net.js:1280:8)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)
error: Forever detected script exited with code: 1
error: Script restart attempt #1
Connecting to: blynk-cloud.com 8441
Connecting to: blynk-cloud.com 8441
SSL authorization...
SSL authorization...
Connected
Connected
Authorized
Authorized

@espftw I notice you said you were using 2 clients, why is this?

Presumably the error is a bug in your code.

If you want us to check it out please translate all of it to English.

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@costastf Thanks for your offer. I translated everything to english and hope you can help me to find the bug =) I updated the code in the first post.

The blynk-bridges connect to ESPs around the house (i.e. Sonoff TH16s, Sonoff Touch etc.). The functionality of the script is working, I can switch lights and receive the temperature and humidity values from the ESPs on the Pi.

I use 2 clients because in my main blynk project there is no more space for widgets. I use 4 tabs but thats still not enough. So I have a second project for the Pi where i can check the terminal and receive the battery state of my battery-driven ESPs.

@espftw I don’t see any obvious problems.

Why are you using the unescape in the Blynk.notify calls?

Until there’s a debugging system available I think the only way to find your random bug is to go back to basics and start by doing very little. Run it for a few days, add a bit of code, run it for a few day, add a bit more code etc.

When you said “2 clients” I thought you meant two js files but looking at your last post I think you mean 2 dashboards.

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@costastf Thank you for your help :blush:
I tried to show special characters (Umlaute like äöü) in the blink.notify, but it did not work. The unescape is a leftover from my tests.

Until there is a possibility for debugging, I now implemented a watchdog as workaround. One of the ESPs sends a value to the Pi every minute and if there is no value received within 5 minutes the script restarts (using forever). Not a very nice solution but I don’t have the time to test every single part of the script for days. And my wife gets angry if she can’t use the “turn all lights off” button :sweat_smile:

Yes exactly, 2 Dashboards/Projects/Blynk-Instances.
I really need more space for Blynk widgets in the smartphone app.