connect esp8266 ไม่ได้ครับ

board arduino uno
esp8266 esp12e
ลองต่อตามคลิป https://www.youtube.com/watch?v=g2z5p-Doebw
แล้ว error แบบนี้ครับ

Executable segment sizes:
IROM : 236864 - code in flash (default or ICACHE_FLASH_ATTR)
IRAM : 27264 / 32768 - code in IRAM (ICACHE_RAM_ATTR, ISRs...)
DATA : 1264 ) - initialized variables (global, static) in RAM/HEAP
RODATA : 788 ) / 81920 - constants (global, static) in RAM/HEAP
BSS : 24984 ) - zeroed variables (global, static) in RAM/HEAP
Sketch uses 266180 bytes (27%) of program storage space. Maximum is 958448 bytes.
Global variables use 27036 bytes (33%) of dynamic memory, leaving 54884 bytes for local variables. Maximum is 81920 bytes.
esptool.py v2.8
Serial port COM5
Connecting........_____....._____....._____....._____....._____....._____.....____Traceback (most recent call last):
File "C:\Users\nut5_\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4/tools/upload.py", line 65, in <module>
esptool.main(cmdline)
File "C:/Users/nut5_/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/2.7.4/tools/esptool\esptool.py", line 2890, in main
esp.connect(args.before)
File "C:/Users/nut5_/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/2.7.4/tools/esptool\esptool.py", line 483, 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
esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header