Displaying the last text after receiving multiple texts over serial with enter command in between

Projects Programming
1

Hi,
I need some help, please, in regard to displaying the last text after receiving multiple texts over serial with enter command in between,
I'm connecting a GSM module to an Arduino NANO by serial, and when I send an SMS from my mobile phone to the GSM, the response from the GSM to Arduino will be as below:

+CMT: "+6********","","22/06/29,15:11:03+40"<\r><\n> // Note: an Enter command generated
//from the GSM module
Hello world <\r><\n>

My inquiry is, how to display only " Hello world" and cancel out the previous text " +CMT:......"

Your assistance would be appreciated.
King regards.
Tony.

2

Hello Tonycham
Take a view here to gain the knowledge.

1 Like
3

Hi paulpaulson,
appreciated.
Is there another way for Arduino would detect the first ( ENTER) command, and display whatever next that ENTER??
Thanks.

4

If you are reading the input character by character, which would be obvious had you posted your sketch, then you could read characters until you receive a '\r' then display everything after that

1 Like
5

Hi UKHeliBob
I agree, is there any code to read characters until you receive an '\r' then display everything after that? Please.
That your answering would be greatly appreciated,
Thanks.

6

Start by posting your current sketch

7

This thing,


works really well for finding how to detect '\r'.

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