I’m experiencing some confounding outcomes when reading from a serial connection in Arduino. The Arduino code below should turn on an LED for one second depending upon the text string received. The strings are sent by a VB.net app (code attached) to an Arduino Leonardo through its USB connection. …

[image] Arduino-x: vbCrLf sounds more like Carriage Return and Linefeed to me If I were you I would take a look at Serial input basics - updated

Serial Message Not Evaluating Correctly -- Arduino-VB.net App

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