I am trying to complete a program but I am new in this world if someone can help me with the code I will be so thankfull. Thanks

Projects Programming
3 
intptr_t setup

What is this supposed to do ?

const unsigned char PROGMEM corazon  =

Is this variable meant to be an array ?

  interruptsetup()

You are calling a function that does not exist in the sketch and there is a missing semicolon

  sendDataToProcessing('S', Signal); //Enviamos a processing la lectura del sensor 'tal cual'

You do not have a function named sendDataToProcessing()