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Author Topic: What are all this 'funny' characters?  (Read 496 times)
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Hi guys,

Please pardon me. I'm totally new to AT commands. While going through some examples with GSM shield via the serial monitors, I see all this funny characters. I just copy some from one of the posts in this forum.
SMS Messages Receiver
0 23>AT%13%%13%%10%OK%13%%10%%13%%10%Call Ready%13%%10%
23 54>AT+CGREG?%13%%13%%10%+CGREG: 0,2%13%%10%%13%%10%OK%13%%10%
54 85>AT+CGREG?%13%%13%%10%+CGREG: 0,2%13%%10%%13%%10%OK%13%%10%

My questions:
1. Is there any meaning at all with all this %xx%xx...
2. Is there a way to get rid of it if they are useless?


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I think they are related to line breaks. Lik %13 =\r and %10=\n

But I'm not sure. Anyway, a better way to speak with the GSM shield in AT commands is explained here:

I believe you have set the parameter to (true). Then you get this kind of output

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