Transferring data over induced coupling

[Bruce]

You definitely can communicate with coils. Look at the data sheet for the MCP2030. You
can use the MCP2030 with any PIC type.

Or use the PIC16F639 with the built-in MCP2030. I used the 16F639 to build the ID badge
in the attached photo. The board on the right is the initiator, which communicates with the
ID badge up to about 6 foot away with 125kHz pulsed communications.

Look for AN1024 PKE System Design Using the PIC16F639 for schematics.

I built this for a customer, so I can't share all the code, but I can give you enough to get
started if you need it.

Here's some more good info: http://ww1.microchip.com/downloads/e...Doc/51637a.pdf