we need a few more info. In fact you can find almost everything everywhere but..

what type of hardware you want to use.
  • 1. one PIC with all the i/o you need
    2. one 8 pins PIC with external stuff like shift register
    3. ???

is the ASCII come by serial, parrallel, by phone, by mental thought or else ?

what kind of display you want : bargraph, 7 segments (multiplex or not)

tell us we can certainely help you