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Arduino dropping network/blynk

Hi,

Im looking for some help with my project. I have an arduino uno which runs two timers to trigger a relay and two buttons to trigger the relay for either an hour or two hours. I’m using an offical Arduino Uno with ethernet shield and relay board. I have tried a relay shield and now using one that sits in the box with trailing leads to it.

My network keeps dropping out. I cannot ping the arduino, if I reset the arduino it comes back online, and whilst its offline another device in the same switch maintains network/internet.

One of my timers is currently set to 19:00-19:45 and for the last three days it drops at 19:39 (taken from the offline time in the blynk app) so not clashing with when the relay is triggering.

I have tried numerous boards and network shields so wondering if there can be an issue with my code?

Any help would be greatly appreciated.
See below for code:


// Following includes are for Arduino Ethernet Shield (W5100)

#include <SimpleTimer.h>
#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>
#include <Time.h>
#include <TimeLib.h>
#include <Wire.h>
#include <WidgetRTC.h> //blynk time server

//
byte arduino_mac[] = { 0xC0, 0x15, 0xC0, 0xFE, 0xEF, 0x81 };
IPAddress arduino_ip ( 192,   168,   1,  169);
IPAddress dns_ip     ( 192,   168,   1,  254);
IPAddress gateway_ip ( 192,   168,   1,   254);
IPAddress subnet_mask(255, 255, 255,   0);

char auth[] = "**"; // Put your Auth Token here. (see Step 3 above)

int Seconds = 0;
int Minutes = 0;
int morninghourstart;
int morningminuetstart;
int eveninghourstart;
int eveningminuetstart;
int morninghourstop;
int morningminuetstop;
int eveninghourstop;
int eveningminuetstop;
int heatingtime = 0;
int heatingcontrol;
int ClockSwitch;
int Relay = A5;
int powercut = 1;

WidgetLED led2(V2);
WidgetLED led3(V3);

SimpleTimer timer;
WidgetRTC rtc;

void setup()
{
  pinMode(Relay, OUTPUT); // Power On
  digitalWrite(Relay, LOW); //set ssd relay off
  Serial.begin(9600); // See the connection status in Serial Monitor
  Blynk.begin(auth, "blynk-cloud.com", 8442, arduino_ip, dns_ip, gateway_ip, subnet_mask, arduino_mac);
  while (Blynk.connect() == false) {
    // Wait until connected
  }
  Serial.print("Connected:");
  // Begin synchronizing time

  timer.setInterval(1000,  CheckHeating);  // check button state every second
  rtc.begin(); //begin getting time-date
  ClockSwitch = 0;
  heatingcontrol = 0;
}

BLYNK_WRITE(5) {
  powercut = 0;
  Blynk.virtualWrite(5, LOW);
}

void CheckHeating() {
  Seconds++;
  if (powercut == 1) {
    Blynk.virtualWrite(4, LOW);
    Blynk.virtualWrite(5, HIGH);
    Blynk.virtualWrite(0, LOW);
    Blynk.virtualWrite(1, LOW);
  }

  if (digitalRead(Relay) == HIGH) {
    led2.on();
    led3.off();
  }
  else {
    led2.off();
    led3.on();
    Blynk.virtualWrite(0, LOW);
    Blynk.virtualWrite(1, LOW);
  }

  if (Seconds >= heatingtime && heatingcontrol == 0) { // Heating Off
    digitalWrite(Relay, LOW); // relay off
    heatingcontrol = 0;
  }

  if (ClockSwitch == 1) {
    Serial.print(hour());
    Serial.print(" ");
    Serial.println(morninghourstart);

    if (hour() == morninghourstart && minute() == morningminuetstart) { // time clock heating Morning
      digitalWrite(Relay, HIGH);
      heatingcontrol = 1;
    }
    else if (hour() == morninghourstop && minute() == morningminuetstop) {
      digitalWrite(Relay, LOW);
      heatingcontrol = 0;
    }

    if (hour() == eveninghourstart && minute() == eveningminuetstart) { // time clock heating Evening
      digitalWrite(Relay, HIGH);
      heatingcontrol = 1;
    }
    else if (hour() == eveninghourstop && minute() == eveningminuetstop) {
      digitalWrite(Relay, LOW);
      heatingcontrol = 0;
    }
  }
}

BLYNK_WRITE(0) { // One Hour
  if (param.asInt()) {
    digitalWrite(Relay, HIGH);
    Blynk.virtualWrite(1, LOW);
    Seconds = 0;
    heatingtime = 3600;
  } else {
    digitalWrite(Relay, LOW);
  }
}

BLYNK_WRITE(1) { // Two Hours
  if (param.asInt()) {
    digitalWrite(Relay, HIGH);
    Blynk.virtualWrite(0, LOW);
    Seconds = 0;
    heatingtime = 7200;
  } else {
    digitalWrite(Relay, LOW);
  }
}

BLYNK_WRITE(4) { // Clock Switch
  if (param.asInt()) {
    ClockSwitch = 1;
  }
  else {
    ClockSwitch = 0;
  }
}

BLYNK_WRITE(V6) { //Time Clock Morning
  TimeInputParam t(param);
  // Process start time
  if (t.hasStartTime())
  {
    morninghourstart = t.getStartHour();
    morningminuetstart = t.getStartMinute();
    //t.getStartSecond());
  }
  else
  {
    // Do nothing
  }
  // Process stop time
  if (t.hasStopTime())
  {
    morninghourstop = t.getStopHour();
    morningminuetstop = t.getStopMinute();
    //t.getStopSecond());
  }
  else
  {
    // Do nothing: no stop time was set
  }
}

BLYNK_WRITE(V8) { //Time Clock Evening
  TimeInputParam t(param);
  // Process start time
  if (t.hasStartTime())
  {
    eveninghourstart = t.getStartHour();
    eveningminuetstart = t.getStartMinute();
    //t.getStartSecond());
  }
  else
  {
    // Do nothing
  }
  // Process stop time
  if (t.hasStopTime())
  {
    eveninghourstop = t.getStopHour();
    eveningminuetstop = t.getStopMinute();
    //t.getStopSecond());
  }
  else
  {
    // Do nothing: no stop time was set
  }
}

void loop()
{
  Blynk.run(); // All the Blynk Magic happens here...
  timer.run();
}

Can I ask why you’re using port 8442?

What version of the Blynk library are you using?

Pete.

Thanks for the reply.

Running 0.6.1. Not sure why the port is in there. I did try last night letting the board be dchp and not assigning a mac address so the same as the blynk example " Blynk.begin(auth);" however that still crashed at a time outside the time clocks.

Any other support on this would be appreciated

So turns out it was ‘noise’ from the boiler the arduino was turning on. Fitted chokes to the zone valves and boiler along with the trigger cable and hasnt gone offline in about two weeks.

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