title: Shorter way to sum numbers?
body: <p>This line is too long and rudimentary please teache me a better way that gives me the same outcome thanks</p>
  
  <p>latitud = datos[0]+datos[1]+datos[2]+datos[3]+datos[4]+datos[5]+datos[6]+datos[7]</p>
  
  <p>considering datos has long info in string because it receives over serial port from arduno so I want to sum up only until datos[7] and discard datos[8], datos[9] and so on thanks</p>