Arduino Issue: LED flickers off when using switchcase and serial monitor input via the keyboard

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Since you might not always have control of the sending device (depending on what you are doing and what the environment is) it would be nice to know how to clear out the serial buffer after reading the first character. That way, no matter who sends what, only the first character would count.

Good video.

duncanpotter

Before laser printers, there were printers more like automated typewriters. These printers could be made to print bold text by sending only the CR and printing the same text over what had already been printed. Other printers used a typewriter style ribbon that was as wide as the printer paper. In these printers the ribbon only advanced with a LF, and could be cut in two by sending a full line length of characters over and over again with only a CR and no LF.

OO_OK

Nice explanation! You are making great videos, thank you for that!

tonysfun

cr and lf are not the same thing, cr returns to the left side, lf advances down a line. Unfortunately the arduino serial monitor does not properly implement these functions, instead it treats them both the same, that doesn't make them the same, it just means the ide is poorly designed. Use a properly implemented serial monitor and they will work as intended.

andreweastland

Very helpful. Where can I order the diagnosaurus?

stevesonntag

Thanks for sharing this, I had this issue once and i could't understand what was going on, they say the devil is hiding in the detail, very well explained.

Greetings all the way from Greece

VasilisKarastergios

LOL. Love the comments in the code. 🚀

cognetic

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