| ??? 02/26/10 06:10 Modified: 02/26/10 06:11 Read: times |
#173582 - Prox card reader Responding to: ???'s previous message |
Hi Ralph,
Do you mean interfacing a prox card reader to an 8052, or actually building one with an 8052 ? If it's the first I did interface one once. Most of them communicate using whats called Weigand protocol. You can Google it to learn more. Basically it uses 2 data lines, one for 0 bits and another for 1 bits. |
| 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 |