VS Arduino - Don't be too emphatic!

Jul 3^rd, 2025 at 7:48am (UTC)

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Don't be too emphatic! (Read 4333 times)

Martin Bradford Newbies Offline Posts: 2 Joined: Dec 24^th, 2012	Don't be too emphatic! Dec 24^th, 2012 at 10:47pm	Print Post
	I've just spent a couple of very frustrating hours - learn my lesson! I just picked up an Arduino MEGA 2560 which I intend to use to automate some systems on our boat. I plugged it up to my PC and started experimenting with some simple code - just to learn the development environment. My code fragment started with a "println" for "Hello World" and then exercised various functions. It worked fine. I then added some extra code and ran it - my new code didn't seem to do anything, so I added an exclaimation mark to "Hello World!" just to prove that I was running the new code. A bit later, I added another exclaimation mark in order to distinguish the code from the previous version. All still working fine. Then, for no obvious reason, folowing some more changes, it suddenly started to refuse to upload into the board... It took me a long time reading the source code of the development environment before I realised that the escape sequence that toggles between the bootloader and the terminal emulator mode is - wait for it - "!!!"... Try it - include three exclaimation marks in a string in the source code and just watch the bootloader crash!


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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Don't be too emphatic! Reply #1 - Dec 24^th, 2012 at 11:09pm	Print Post
	Hi, I think the place to post this is on the arduino.cc/forum. I never knew this about arduino and I am sure many others don't know about it. It's a good find, I just tried it in arduino 1.0.x and found it impossible to get a successful upload when a Serial.println("!!!") is in the code. What do you mean by emphatic? Visual Micro is unconnected to Arduino. It is a free service to help people who have chosen to use Arduino or Arduino compatible hardware. Thanks
	« Last Edit: Dec 24^th, 2012 at 11:11pm by Tim@Visual Micro »

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Marius Developer Offline Posts: 204 Location: Centurion RSA Joined: Sep 7^th, 2011	Re: Don't be too emphatic! Reply #2 - Dec 25^th, 2012 at 6:13am	Print Post
	em�phat�ic /emˈfatik/ Adjective Showing or giving emphasis; expressing something forcibly and clearly. (of an action or event or its result) Definite and clear. Maybe it was a wrong choice of word??


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jgmdavies Junior Member Offline Posts: 14 Location: UK Joined: Nov 30^th, 2012	Re: Don't be too emphatic! Reply #3 - Dec 26^th, 2012 at 7:34pm	Print Post
	@Tim I think he just meant emphatic as in using shrieks (!)... All the seasonal best, Jim


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Tim@Visual Micro Administrator Offline Posts: 12191 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Don't be too emphatic! Reply #4 - Dec 26^th, 2012 at 7:36pm	Print Post
	Okay it's been a long year Martin that is very funny, sorry I was slow off the mark


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