Error while uploading to ESP8266 from Arduino IDE

Question

I was trying to upload code to my esp8266 from the Arduino IDE and it gives me this error:

   esptool.py v2.8
    Serial port COM6
    Connecting........_____....._____....._____....._____....._____....._____.....____Traceback (most recent call last):
      File "C:\Users\arcae_000\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.3/tools/upload.py", line 65, in <module>
        esptool.main(cmdline)
      File "C:/Users/arcae_000/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/2.6.3/tools/esptool\esptool.py", line 2890, in main
        esp.connect(args.before)
      File "C:/Users/arcae_000/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/2.6.3/tools/esptool\esptool.py", line 483, in connect
        raise FatalError('Failed to connect to %s: %s' % (self.CHIP_NAME, last_error))
    esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header
    esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header

I have the esp8266 board extension installed on the Arduino IDE and set to 'Generic ESP8266 Module'. I have tried changing the upload speed but it still fails. This is the code I used:

#include <ESP8266WiFi.h>
 
const char* ssid = "SSID";//type your ssid
const char* password = "PASSWORD";//type your password
 
int ledPin = 2; // GPIO2 of ESP8266
WiFiServer server(80);
 
void setup() {
  Serial.begin(115200);
  delay(10);
 
 
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, LOW);
   
  // Connect to WiFi network
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
   
  WiFi.begin(ssid, password);
   
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
   
  // Start the server
  server.begin();
  Serial.println("Server started");
 
  // Print the IP address
  Serial.print("Use this URL to connect: ");
  Serial.print("http://");
  Serial.print(WiFi.localIP());
  Serial.println("/");
    
}
 
void loop() {
  // Check if a client has connected
  WiFiClient client = server.available();
  if (!client) {
    return;
  }
   
  // Wait until the client sends some data
  Serial.println("new client");
  while(!client.available()){
    delay(1);
  }
   
  // Read the first line of the request
  String request = client.readStringUntil('\r');
  Serial.println(request);
  client.flush();
   
  // Match the request
 
  int value = LOW;
  if (request.indexOf("/LED=ON") != -1) {
    digitalWrite(ledPin, HIGH);
    value = HIGH;
  } 
  if (request.indexOf("/LED=OFF") != -1){
    digitalWrite(ledPin, LOW);
    value = LOW;
  }
 
// Set ledPin according to the request
//digitalWrite(ledPin, value);
   
 
  // Return the response
  client.println("HTTP/1.1 200 OK");
  client.println("Content-Type: text/html");
  client.println(""); //  do not forget this one
  client.println("<!DOCTYPE HTML>");
  client.println("<html>");
   
  client.print("Led pin is now: ");
   
  if(value == HIGH) {
    client.print("On");  
  } else {
    client.print("Off");
  }
  client.println("<br><br>");
  client.println("Click <a href=\"/LED=ON\">here</a> turn the LED on pin 2 ON<br>");
  client.println("Click <a href=\"/LED=OFF\">here</a> turn the LED on pin 2 OFF<br>");
  client.println("</html>");
 
  delay(1);
  Serial.println("Client disonnected");
  Serial.println("");
 
}

(I have changed the SSID and Password values) I have searched every website I could find but I still couldn't fix it. The esp8266 is in flash mode. Also, I know that the esp8266 is not broken. I would appreciate any help.

is the esp8266 in flashing mode? (io 0 LOW at startup)

Juraj
– Juraj

2019-12-24 08:34:03 +00:00
Commented Dec 24, 2019 at 8:34 — Juraj
– Juraj, Commented Dec 24, 2019 at 8:34

user12592944 · Accepted Answer · 2019-12-27 18:59:56Z

1

Can you post your upload settings?

Things that might be wrong:

You maybe have a NODEMCU module, try to switch to that board in upload settings.
Did you confirm that a new COM-port shows up when you plugin your ESP?
Do you have the correct COM-port selected?

These are my ESP8266 settings, here

In case you actually have a NODEMCU, if nothing is working from above, try updating the firmware using all these instructions : https://github.com/nodemcu/nodemcu-firmware

answered Dec 27, 2019 at 18:59

user12592944

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1 Comment

Arca Ege Cengiz Over a year ago

Thanks, I fixed it by updating the firmware

Bijender Singh Shekhawat · Accepted Answer · 2022-09-14 06:45:34Z

0

I also facing same error, I found this solution and its work for me. The most common reason for the board not being displayed on a port are a failing USB connection. The board needs to be connected to your computer with a data USB cable. Make sure the USB cable is not damaged. Test your cable with a different device or try using a different cable.

answered Sep 14, 2022 at 6:45

Bijender Singh Shekhawat

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