Arduino: 1.8.9 (Mac OS X), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, Flash, Disabled, All SSL ciphers (most compatible), 4M (no SPIFFS), v2 Lower Memory, Disabled, None, Only Sketch, 115200"
Sketch uses 472588 bytes (45%) of program storage space. Maximum is 1044464 bytes.
Global variables use 44932 bytes (54%) of dynamic memory, leaving 36988 bytes for local variables. Maximum is 81920 bytes.
esptool.py v2.6
2.6
esptool.py v2.6
Serial port /dev/cu.URT0
Connecting......................................____Traceback (most recent call last):
File "/Users/demorgan/Library/Arduino15/packages/esp8266/hardware/esp8266/2.5.2/tools/upload.py", line 25, in
esptool.main(fakeargs)
File "/Users/demorgan/Library/Arduino15/packages/esp8266/hardware/esp8266/2.5.2/tools/esptool/esptool.py", line 2653, in main
esp.connect(args.before)
File "/Users/demorgan/Library/Arduino15/packages/esp8266/hardware/esp8266/2.5.2/tools/esptool/esptool.py", line 468, 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
_
the selected serial port _
does not exist or your board is not connected
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.