Led blink code using NodeMCu

Using Arduino Interfacing w/ Software on the Computer
1

I am trying to run simple LED blink code using NodeMCU AMica Board

#define LED 0           // Led in NodeMCU at pin GPIO16 (D0).
void setup() {
  pinMode(LED, OUTPUT);    // LED pin as output.
  Serial.begin(115200);
}
void loop() {
  digitalWrite(LED, HIGH);// turn the LED off.(Note that LOW is the voltage level but actually
  //the LED is on; this is because it is acive low on the ESP8266.
  delay(1000);            // wait for 1 second.
  Serial.println("High");
  digitalWrite(LED, LOW); // turn the LED on.
  Serial.println("LOW");
  delay(1000); // wait for 1 second.
  
}

While Running i am getting below error

esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header
_
the selected serial port _
does not exist or your board is not connected

i have shared config setting done for Nodemcu

esp32
esp321366×768 52.5 KB

2

Usually this message appears when the board does not change into upload mode (some ESP32 boards do have a "boot" button that has to be pressed in this case).

The problem does not seem to be new: Please feel free to have a look at this

https://forum.arduino.cc/t/esp-8266-timed-out-waiting-for-packet-header/597634

3

I found The error with CP2102 Driver. My board itself not detecting. I have tried updating the driver mentioned on the website. But it fails to update the device driver for comport

Is there any proper driver links

4

The flash mode gets initialted by pulling GPIO 0 LOW during boot. NodeMCU's many times have an automated system, but pulling the pin HIGH via a LED may disable that.
There is a built in LED on GPIO 2 (active LOW)
Also there is the 'FLASH' button, which sets it into Flash mode manually when you hold it down while you reset the board (using the reset button)

GPIO's 0,1,2 & 15 Have special functions at boot, check this list

5

I want a sample code To check the LED blink program. On board, there is LED. Can you send me code

6

You have --
#define LED 0

Change that to --
#define LED D0 // D0 or #define LED 16

7

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