To verify it is not an IDE error, I tried using esptool.py to erase flash, and I got the same behaviour Connecting._._._._._._._ Raise FatalError('Failed to connect to %s: %s' % (self.CHIP_NAME, last_error))Įsptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header So I tried to chmod of connected port /dev/ttyUSB0, which didn't change the error message ( by the way, also on USB1, and ACM0 I got the same output- when trying to upload to Nano).Ĭonnecting._._._._._._._įile "/home/guy/.arduino15/packages/esp8266/hardware/esp8266/3.0.2/tools/upload.py", line 66, in įile "/home/guy/.arduino15/packages/esp8266/hardware/esp8266/3.0.2/tools/esptool/esptool.py", line 3552, in mainĮsp.connect(args.before, nnect_attempts)įile "/home/guy/.arduino15/packages/esp8266/hardware/esp8266/3.0.2/tools/esptool/esptool.py", line 529, in connect ![]() deb file downloaded from web).Īn error occurred while uploading the sketch avrdude: ser_open(): can't open device "/dev/ttyACM0": Device or resource busyĪfter a first install of Arduino IDE on a new Linux machine need to be a member of : sudo usermod -a -G dialout $USER and logoff, logon ,which didn't change as expected. After a fresh install of Ubuntu, I tried to upload sketch using Arduino IDE v1.8.16 (installed using a.
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