Kevin Timmerman has developed an PIC based interface that will hook an inexpensive digital caliper to a PC via RS232. He has provided complete instructions including eagle schematic and board layout.
The link
The design uses a PIC12C509.
Common inexpensive calipers have a range would from 0 to 6in or about 150mm.
The link
The design uses a PIC12C509.
Common inexpensive calipers have a range would from 0 to 6in or about 150mm.