| ??? 02/26/10 07:26 Read: times |
#173587 - What "proximity card"? Responding to: ???'s previous message |
There are many things that may be called "proximity cards", and a number of different schemes and protocols are involved.
So the first thing you need to do is to determine exactly what card type(s) you want to support. Then find a reader chip or module to suit. Then it's just the same as interfacing anything else: http://www.8052.com/forum/read/160143 Ralph Sac said:
I did find one on ebay that uses usb port... That would need a USB Host port - no use for an 8051. |
| Topic | Author | Date |
| I was wondering has any one ever | 01/01/70 00:00 | |
| Prox card reader | 01/01/70 00:00 | |
| Most (sic?) of them communicate using whats called Weigand | 01/01/70 00:00 | |
| well both | 01/01/70 00:00 | |
| What "proximity card"? | 01/01/70 00:00 | |
| Cross-Reference: RFID | 01/01/70 00:00 | |
I don't want support a perticular card | 01/01/70 00:00 |