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It is probably not the Arduino IDE but some other rogue piece of software, like a GSM modem manager (a modern Arduino sort of looks like one) or a driver for old serial mice. Having the Serial monitor open likely means that the serial device is claimed and unavailable to the undesired program.

Chris Stratton
– Chris Stratton

2017-05-12 19:00:20 +00:00
Commented May 12, 2017 at 19:00
Is that in any way an indicator of nefarious software running, or just annoying? I imagine something in the HP Workstation special tools could be trying to do that.

J Collins
– J Collins

2017-05-12 19:29:08 +00:00
Commented May 12, 2017 at 19:29

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