Need Help about Arduino Uno with ESP8266 WIFI Module and Bynk

[PeteKnight]

@Malik_Raheel

SoftwareSerial EspSerial(10, 11); // RX, TX

@Malik_Raheel

#define ESP8266_BAUD 115200

You are creating a SoftwareSerial port called EspSerial and initialising it at 115200 baud.
Unfortunately, the Arduino Uno or Nano that you’re using doesn’t have the processing power to emulate a serial port at this speed, so it’s working for a very short while, then failing.

You need to change the ESP8266_BAUD value to 9200, but at the same time you need to re-configure your ESP8266 to also communicate at 9200 baud. How you do this will depend on the hardware you are using and whether you have an FTDI adapter available to you.

More info on this issue 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.