You're right - it doesn't work in most cases, and will almost always return true. The one board where it's actually functional is the Leonardo. According to the: On the Leonardo, if (Serial) indicates wether or not the USB CDC serial connection is open. For all other instances, including if (Serial1) on the Leonardo, this will always returns true.

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Basic serial connections (used by most Arduinos) usually don't care if anything is actually listening. It's not uncommon for embedded devices to send debug info by serial even when nothing is receiving it. Gulf stream vista cruiser 4230. This has the advantage that the code's timing and behaviour won't change when debugging, which could cause all sorts of problems if you're trying to diagnose a problem reported in the field.

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The most popular are Code Designer from CSMicro Systems and Microcode Studio from Mecanique. Mecanique MCSX SerialCom Details file info: Serial Communicator. Early life and education. Chandrasekhar was born on 19 October 1910 in Lahore, Punjab, British India in a Tamil family, to Sitalakshmi (1891–1931) and. Serial Communicator Mecanique Auto. Serial Port Utility is a professional communication software for serial port. Serialport Utility makes it more efficient for.