My blynk device goes online for 10 seconds and proceeds to go offline

[PeteKnight]

@Josue_315

// Your ESP8266 baud rate:
#define ESP8266_BAUD 38400

It’s probably caused by the SoftwareSerial port being unable to emulate this baud rate. The Uno simply doesn’t have enough processing power for this.

You should read this for more info on the subject…

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.