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

The discussion revolves around an issue with uploading a simple LED blink program to an ESP-01S module using VS Code and PlatformIO, where the user encounters a "Timed out waiting for packet header" error. Initial troubleshooting steps included verifying the USB converter connection, ensuring the correct COM port (COM3) was selected, and examining the platform.ini configuration. Modifications to the platform.ini file, including adjusting upload and monitor speeds, were suggested. After several attempts, the user successfully uploaded the program but reported that the LED did not blink as expected. Further investigation revealed that defining the LED pin explicitly in the code resolved the issue, allowing the program to function correctly.
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