Hi everyone, this is a new project that i have undertaken, and i was hoping too get some advice on how to accomplish this.The project requires the construction of an auto-ranging volt meter that can measure positive DC voltages in the ranges 0v-1v, 0v-100mv and 0v-10mv. The display should 4 digits up to a maximum value of 1.000 volts. There should be an indication of some form when the input voltage is out of range. The one restriction is to use a PIC processor of 20 pins or less.