[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"

How do you have the USB converter connected to the ESP-01S module? What kind of converter is it? Is the GPIO 0 pin shorted to ground before starting the flashing process?

Yes, it should roughly look like this:

.

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?

What does the platform.ini file look like?

Yes, definitely valid COM port 3.

Added after 5 [hours] 26 [minutes]:

platform.ini :

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

I suggest slightly modifying the platform.ini:

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.

Interval wrote:

When using the arduino it works.

How are the settings in the Arduino IDE?

COM3 settings, 115200.

Just a question to avoid guesswork: when you do the upload from PlatformIO, is the Arduino IDE also running and COM3 set?

No, I only have Platformio running.

This is my final platform.ini proposal:

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

Interval wrote:

but it doesn't run.

And how do you know it doesn't run?

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

Then perform a system reset.

Executed. It doesn't work either.

What is displayed in the serial port monitor after a reset?

--- 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�$`␂��'�␇l��␃�␛�g�s��o|�␌�d�␜{d␜c�␛␃␌�|␂{�␃l�'�␌�o�␀␌d`␃��r�d�$␓�␌␄␄��␀␀␀␀␀␀␀

What speed do you have set for Serial in the program code?

115200 in the manager also 115200

It looks like the programme didn't load after all.

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.

Please post the code for this program that you upload to the ESP.

#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
}

Interval wrote:

When using the arduino it works.

With what variant of the selected board in the Arduino IDE?

Generic ESP8266 Module

Try defining the 'pin' variable explicitly as 1 in the code and then reload the programme and run.

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