Library TridentTD_Linenotify has been declared precompiled:Using precompiled library in c:\Users\PC\Documents\Arduino\libraries\TridentTD_Linenotify\src\esp8266. Variables and constants in RAM (global, static), used 30328 / 80192 bytes (37%)║ SEGMENT BYTES DESCRIPTION╠══ DATA 1500 initialized variables╠══ RODATA 2108 constants╚══ BSS 26720 zeroed variables. Instruction RAM (IRAM_ATTR, ICACHE_RAM_ATTR), used 60149 / 65536 bytes (91%)║ SEGMENT BYTES DESCRIPTION╠══ ICACHE 32768 reserved space for flash instruction cache╚══ IRAM 27381 code in IRAM. Code in flash (default, ICACHE_FLASH_ATTR), used 383604 / 1048576 bytes (36%)║ SEGMENT BYTES DESCRIPTION╚══ IROM 383604 code in flashesptool.py v3.0Serial port COM1Connecting........_____....._____....._____....._____....._____....._____....._____A fatal esptool.py error occurred: Failed to connect to ESP8266: Timed out waiting for packet headerTraceback (most recent call last):File "C:\Users\PC\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.2/tools/upload.py", line 72, in <module>os.remove(erase_file)PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'C:\\Users\\PC\\AppData\\Local\\Temp\\tmpkvhv443t'Failed uploading: uploading error: exit status 1 จาก Error คือไม่สามารถเชื่องต่อบอร์ด ได้ครับ ปกติ com 1 จะไม่ใช่ ของบอร์ด esp32 ครับ  ให้ลองลง ไดร์เวอร์ ดูก่อน ว่าเจอ com port ไหม 

Library TridentTD_Linenotify has been declared precompiled: Using precompiled library in c:\Users\PC\Documents\Arduino\libraries\TridentTD_Linenotify\src\esp8266 . Variables and constants in RAM (global, static), used 30328 / 80192 bytes (37%) ║ SEGMENT BYTES DESCRIPTION ╠══ DATA 1500 initialized variables ╠══ RODATA 2108 constants ╚══ BSS 26720 zeroed variables . Instruction RAM (IRAM_ATTR, ICACHE_RAM_ATTR), used 60149 / 65536 bytes (91%) ║ SEGMENT BYTES DESCRIPTION ╠══ ICACHE 32768 reserved space for flash instruction cache ╚══ IRAM 27381 code in IRAM . Code in flash (default, ICACHE_FLASH_ATTR), used 383604 / 1048576 bytes (36%) ║ SEGMENT BYTES DESCRIPTION ╚══ IROM 383604 code in flash esptool.py v3.0 Serial port COM1 Connecting........_____....._____....._____....._____....._____....._____....._____ A fatal esptool.py error occurred: Failed to connect to ESP8266: Timed out waiting for packet header Traceback (most recent call last): File "C:\Users\PC\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.2/tools/upload.py", line 72, in <module> os.remove(erase_file) PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'C:\\Users\\PC\\AppData\\Local\\Temp\\tmpkvhv443t' Failed uploading: uploading error: exit status 1