Help!)esp is not responding!

    It's very tricky to get it working. Please read this article:

  Change WiFi ssid, pass, and Blynk auth token to run :)
  Feel free to apply it to any other example. It's simple!

/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial

#include <ESP8266_Lib.h>
#include <BlynkSimpleShieldEsp8266.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "0765cb4840904c72ab670334c72913a1";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Lee";
char pass[] = "37744910";

// Hardware Serial on Mega, Leonardo, Micro...
#define EspSerial Serial1

// or Software Serial on Uno, Nano...
//#include <SoftwareSerial.h>
//SoftwareSerial EspSerial(2, 3); // RX, TX

// Your ESP8266 baud rate:
#define ESP8266_BAUD 115200

ESP8266 wifi(&EspSerial);

void setup()
  // Debug console


  // Set ESP8266 baud rate

  Blynk.begin(auth, wifi, ssid, pass);

void loop()

The following problems arise when uploading with the above code.

    ___  __          __
   / _ )/ /_ _____  / /__
  / _  / / // / _ \/  '_/
 /____/_/\_, /_//_/_/\_\
        /___/ v0.5.2 on Arduino Mega

[604] Connecting to Lee
[1614] ESP is not responding

No matter how much I looked, I couldn’t find a solution. Please help me!!!

I formatted your code properly, for starters.

What hardware do you use to connect to the ESP? Uno (no serial1 here, you have to use software serial and 115200 is way to fast for that), Mega … ? Does the ESP work when you connect it to a serial port, e.g. does it respond to AT commands? Does the baudrate match with what is setup on the ESP? If not, it will not work. Different manufacterers use different default baud’s.

Did you search on the forum?

@Lichtsignaal Based on the serial output, the OP is using a MEGA, so Serial 1 is correct… and it is Hardware serial, so can easily go up to 115200 (with ESP set to same rate).

@dj4910 Search this forum for keywords like Arduino, Mega, UNO ESP-01, Shield… every single potential issue has already been discussed and solved… many times over in this forum…

Power (Use seperate 3.3v for ESP, with a shared GND… NOT the 3.3v pin on the Mega as it is not powerful enough)

Wiring the serial crossover (RX on one device goes to TX on other, and vice versa)

Matching ESP BAUD rate

And so on…

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2 posts were split to a new topic: ESP-01 issue with Arduino Mega