Capteur de tension/voltage

Code de référence:
# Include <wire. H>

Int val11;
Int val2;

Void Setup ()
{
Pinmode (LED1, sortie);
Serial. Begin (9600);
Serial. println ("emartee. COM");
Serial. println ("tension:");
Serial. print ("V");
}
Void Loop ()
{
Flotter température;
Val11 = analogread (1);
Temp = val11/4.092;
Val11 = (int) Temp;//
Val2 = ((val11 % 100)/10);
Serial. println (val2);
Retard (1000);
}