[Solved] VS Code + PlatformIO: ESP-01S Upload Fails - Timed Out Waiting for Packet Header

I have written a simple program to blink the LED. The program has compiled, when I press Upload it doesn't want to connect to the ESP

"Auto-detected: COM3
Uploading .piobuild.bin
esptool.py v3.0
Serial port COM3
Connecting........_____....._____....._____....._____....._____....._____...............__________

A fatal error occurred: Failed to connect to ESP8266: Timed out waiting for packet header
*** [upload] Error 2"

I am using a link 1.0 esp module mounted in a socket, so it is connected correctly. When using the arduino it works. The problem occurs when I use the PlatformIO.

Are you sure the correct COM port number has been detected?

Yes, definitely valid COM port 3.

Added after 5 [hours] 26 [minutes]:

platform.ini :

[env:esp01_1m]
platform = espressif8266
board = esp01_1m
framework = arduino

After modification to form:

[env:esp01_1m]
platform = espressif8266
board = esp01_1m
framework = arduino
upload_speed = 115200
monitor_speed = 115200
monitor_dtr = 0
monitor_rts = 0

still message:

Looking for upload port...
Using manually specified: COM3
Uploading .. pio\n_1mfirmware.bin
esptool.py v3.0
Serial port COM3
Connecting........_____....._____.........._____.........._____.........._____....._____.........._____

A fatal error occurred: Failed to connect to ESP8266: Timed out waiting for packet header
*** [upload] Error 2.

COM3 settings, 115200.

No, I only have Platformio running.

After changing the platform.ini, the programme was uploaded successfully, but it does not start. It does not show any errors.

I uploaded the Blink program, the diode should blink - just like on the Arduino, it doesn't.

Executed. It doesn't work either.

--- Terminal on COM3 | 115200 8-N-1
--- Available filters and text transformations: colorize, debug, default, direct, esp8266_exception_decoder, hexlify, log2file, nocontrol, printable, send_on_enter, time
--- More details at https://bit.ly/pio-monitor-filters
--- Quit: Ctrl+C | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H
-␀␀␀␀{d␀d��|␀�d�|␃␄␌␌�␄d�␌c|��␃�␛�r�c�␄c��gn�$og��␄c␜p��l;lsl8�o�␐␂␌␄�␄l␌��␄␄␌c␌n�|␃�␌�␜�␄c��'n�␀l��d`␃�␛␒gn␄l`␂␇␃o{���'␄␄#l�␇lp�o�␘␃␄␄{�ܜ�␜��␂␌b␄o�|␃␄�␄c��no�␀␌␌d`␃�␛␒g'␄$`␂␇␃n{���g␌␄c��`␃␇s��g␌␄c��`␂�␃␄␄␌�␌�p�$`␂��'�␇l��␃�␛�g�s��o|�␌�d�␜{d␜c�␛␃␌�|␂{�␃l�'�␌�o�␀␌d`␃��r�d�$␓�␌␄␄��␀␀␀␀␀␀␀

115200 in the manager also 115200

Ok, the diode when uploading behaves like when uploading with Arduino, it blinks.

Added after 1 [minute]:

Serial port COM3
Connecting....
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz
MAC: bc:dd:c2:27:cb:ca
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Compressed 265648 bytes to 195769...
Writing at 0x00000000... (8 %)
Writing at 0x00004000... (16 %)
Writing at 0x00008000... (25 %)
Writing at 0x0000c000... (33 %)
Writing at 0x00010000... (41 %)
Writing at 0x00014000... (50 %)
Writing at 0x00018000... (58 %)
Writing at 0x0001c000... (66 %)
Writing at 0x00020000... (75 %)
Writing at 0x00024000... (83 %)
Writing at 0x00028000... (91 %)
Writing at 0x0002c000... (100 %)
Wrote 265648 bytes (195769 compressed) at 0x00000000 in 17.1 seconds (effective 124.1 kbit/s)...
Hash of data verified...

Leaving...
Hard resetting via RTS pin...
=========================================================== [SUCCESS] Took 27.44 seconds ===========================================================
* Terminal will be reused by tasks, press any key to close it.

#include // include file Arduino.h

int pin = LED_BUILTIN; // GPIO number for LED

void setup() {
pinMode(pin, OUTPUT); // set GPIO as output
}

void loop() {
digitalWrite(pin, HIGH); // turn on LED with high state
delay(1000); // wait 1 second
digitalWrite(pin, LOW); // turn off LED with low state
delay(1000); // wait 1 second
}

Generic ESP8266 Module

Ok, I defined the "pin" as 2 and it works. Thank you very much for your time and help.