Esp8266 not responding (esp8266 12-f)

So ive been trying to connect my esp8266mod (esp8266 12-f) to my arduino uno. Ive downloaded blynk 0.6.1 library but when i connect the esp to arduino uno and run the sketch below, i get an error on serial monitor saying “[1608] ESP Not Responding”. I ve tried changing the baud rate to 9600 but then i get an error sayin “[1612] ESP Not Responding”. What might be the problem in this case ? My connections to arduino and esp are below.

Arduino <---------> Esp
Gnd ----------- Gnd
pin2 ----------- RX
pin3 ----------- TX

I also tried using an external power supply for the esp but no help.


#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[] = "myauthtoken";

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

// 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 11520

ESP8266 wifi(&EspSerial);

void setup()
{
  // Debug console
  Serial.begin(9600);

  // Set ESP8266 baud rate
  EspSerial.begin(ESP8266_BAUD);
  delay(10);

  Blynk.begin(auth, wifi, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, wifi, ssid, pass, "blynk-cloud.com", 80);
  //Blynk.begin(auth, wifi, ssid, pass, IPAddress(192,168,1,100), 8080);
}

void loop()
{
  Blynk.run();
  // You can inject your own code or combine it with other sketches.
  // Check other examples on how to communicate with Blynk. Remember
  // to avoid delay() function!
}

RX needs to go to TX and visa versa

I ve tried but the result is same :frowning:

Well, search this forum for keywords like ESP-01, ESP as shield, your error message, etc… This issue and all solutions (like proper SoftwareSerial connection and BAUD rate for shields) have have been repeatedly discussed more times than needed.

1 Like

I’ll be looking. Thanks!

A crazy question but it is a least … if you connect the esp-12f Vcc with 3.3VDC? :slight_smile:
…and not only that but also: pull down for pin 15, pull up for pins rst, … ask Google haha