Executable segment sizes:

ICACHE : 32768           - flash instruction cache

IROM   : 242992          - code in flash         (default or ICACHE_FLASH_ATTR)

IRAM   : 27277   / 32768 - code in IRAM          (IRAM_ATTR, ISRs...)

DATA   : 1504  )         - initialized variables (global, static) in RAM/HEAP

RODATA : 1008  ) / 81920 - constants             (global, static) in RAM/HEAP

BSS    : 25792 )         - zeroed variables      (global, static) in RAM/HEAP

Sketch uses 272781 bytes (26%) of program storage space. Maximum is 1044464 bytes.
Global variables use 28304 bytes (34%) of dynamic memory, leaving 53616 bytes for local variables. Maximum is 81920 bytes.
esptool.py v3.0
Serial port COM1
Connecting........_____....._____....._____....._____....._____....._____....._____
Traceback (most recent call last):
  File "C:\ \ \AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.1/tools/upload.py", line 66, in <module>
    esptool.main(cmdline)
  File "C:/ / /AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/3.0.1/tools/esptool\esptool.py", line 3552, in main
    esp.connect(args.before, args.connect_attempts)
  File "C:/ /AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/3.0.1/tools/esptool\esptool.py", line 529, 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
Failed uploading: uploading error: exit status 1

主要问题是CH340驱动问题，安装即可，按照此链接下载就行

CH341SER.EXE - 南京沁恒微电子股份有限公司

其他百度搜出的答案均未解决。