WidgetRTC starting 1 1 1970

Solved
1

Hi, I am having problems with the RTC I am using the std. sketch from Blyk examples.
Is there anyone that can help me??

#include <Time.h>
#include <TimeLib.h>
#define BLYNK_PRINT Serial
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <WidgetRTC.h>

char auth[] = "9342e0e92bxxxxx8befc8a664b";
char ssid[] = "Roennebaervejxx";
char pass[] = "rahbekxx";

BlynkTimer timer;
WidgetRTC rtc;

void clockDisplay()
{
  String currentTime = String(hour()) + ":" + minute() + ":" + second();
  String currentDate = String(day()) + " " + month() + " " + year();
  Serial.print("Current time: ");
  Serial.print(currentTime);
  Serial.print(" ");
  Serial.print(currentDate);
  Serial.println();
  Blynk.virtualWrite(V1, currentTime);
  Blynk.virtualWrite(V2, currentDate);
}

void setup()
{
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
  rtc.begin();
  timer.setInterval(1000L, clockDisplay);
}

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

Don’t post unformatted sketches to the forum.

Do you have the RTC widget in your project?

Move rtc.begin() to:

BLYNK_CONNECTED() {
   rtc.begin();
}

If this fails try RTC Advanced example.

3

I’m using the method given in advanced RTC example and that works well for me. If you include widgetrtc.h, it will not compile.

As @Costas said, move rtc.begin to BLYNK_CONNECTED() as only after the Blynk connection can the RTC sync with the server. If the widget is not instanced in you UI, the RTC will never sync.

1 Like
4

Thanks both for your fast response. I have struggled with this RTC for some days now, I tried both RTC and advanced without succes. I am an amateur sorry for not understanding but if using the std example from Blynk where do I put the BLYNK_CONNECTED? Tried several places but get an: ‘rtc’ was not declared in this scope.

5

It’s a free standing function so pretty much anywhere. If you want a particular place let’s say between setup() and loop().

6

Hi Costas, sorry I tried the BLYNK_CONNECTED without result. It passes the compiler without failures, but still shows counting from “0” time and 1970. I also tried the advanced type here it also compiles fine but do not print any time. Just connecting like this:
[4228] Connected to WiFi
[4228] IP: 192.168.0.43
[4228]
___ __ __
/ _ )/ /_ _____ / /__
/ _ / / // / _ / '/
///_, /////_
/__/ v0.5.0 on NodeMCU

[4298] Connecting to blynk-cloud.com:8442
[4429] Ready (ping: 0ms)

I have Blynk sketch with 3 sensores running without problems.

7

@rahbek you still haven’t answered this question… it is a required widget (and set for your timezone) if you want to use Blynk’s RTC

Also, why do you need Time.h? Having multiple Time libraries could also add to your issue.

8

Hi both,
I misunderstood the RTC widget to be included. I also found that I do not need double time liberaries. Everything is working now. THANKS for your understanding and help.

1 Like