Lcd display with blynk data

[PeteKnight]

Okay, my guess is that your device is failing to connect to the Blynk server, but we’d need to see your serial output to confirm that.
Copy the text from your serial monitor, and paste it here (once again with triple backticks at the beginning and end).

It would be helpful if you provided…

@PeteKnight

details of the hardware you are using and how it is connected and powered

You obviously aren’t using the latest version of the Blynk library, because that requires these lines of code to be at the very top of your sketch…

@LAARIA

/* Fill-in information from Blynk Device Info here */
#define BLYNK_TEMPLATE_ID "TMPL2zgKrEgch"
#define BLYNK_TEMPLATE_NAME "SENSOR PROTOTYPE"
#define BLYNK_AUTH_TOKEN "xwAofwSbst98Ovq5HCojGNiDuAENgBpO"

So, you should update to the latest version of the Blynk library and move these lines of code.

Assuming that you are using an Arduino Uno, SoftwareSerial on the Uno can’t reliably support emulating a serial port with this baud rate…

@LAARIA

#define ESP8266_BAUD 38400

More info on that here…

Understanding hardware and software serial ports

I’m still seeing frequent posts, mostly from new members of the forum, who are confused about how to add WiFi or Bluetooth connectivity to devices like the Arduino Uno, Nano or Mega, or from people who are trying to use serial communication with some other type of peripheral. I thought I’d try to put together some guidance on how to do this properly. First things first though – if you’re using a device such as an Uno, Nano or Mega that doesn’t have built-in internet connectivity then you shoul…

Pete.