I need to take the tweet, that is between "here is the tweet"
Can someone please help ?
In mostraDadosSerial(), you have to do more than print the software serial data to the hardware serial port. You need to collect it in a NULL terminated character array, dealing with the data in that array whenever an end-of-record marker (carriage return or line feed, maybe) appears.
You can use strstr() to determine if the string contains "", and, if so, you can then locate the start of the data of interest. You can then determine if the string contains "<\text>". If so, put another NULL in place of the "<", and all that will be left will be the text of interest.