These posts by say2paul have received thanks:
| RFID BASED ATTENDANCE SYSTEM +TX ,RX[9/9/08] |
| To make it simple for you.. MIFARE card is fundamentally just a memory storage device, where the memory is divided into segments and blocks with simple security mechanisms for access control. They have... |
| Thanked 1 time Posted by say2paul on |
| RFID BASED ATTENDANCE SYSTEM +TX ,RX[9/9/08] |
| Dear Arun, I never used RF transceivers. So I was bit curious for the security thing in RF transmission. I mean to say that is the data we transmit using RF transmitter protected by a password..? When I... |
| Thanked 1 time Posted by say2paul on |
| RFID BASED ATTENDANCE SYSTEM +TX ,RX[9/9/08] |
| Don't know buddy, but Arun recommended me the same.. So lets wait for his reply! |
| Thanked 1 time Posted by say2paul on |
| RFID BASED ATTENDANCE SYSTEM +TX ,RX[9/9/08] |
| RS485 . . It is successor of RS232 and can cover distance upto 1200 to 1400 meters. I request Arun Kumar to further help you on this... |
| Thanked 1 time Posted by say2paul on |
| Multiple Serial port 8051 - AT89C51 |
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| Thanked 1 time Posted by say2paul on |
| Multiple Serial port 8051 - AT89C51 |
| I know AT89C51 has only one serial port for data communication. But I need two serial ports in my project. Somehow I am able to connect two RS232 devices by placing a relay between the RX/TX port of A... |
| Thanked 1 time Posted by say2paul on |
| return 0 vs return 1 |
| The return statement A return statement ends the processing of the current function and returns control to the caller of the function. ... |
| Thanked 1 time Posted by say2paul on |
| TSOP 1738 with RX pin of 8051 |
| Thats why even I got confused, actually it was a typo error at http://www.8051projects.net/forum-t9301-0.html#post_9317 You mentioned G = +/- 2 % instead G = +/- 20 % :) |
| Thanked 1 time Posted by say2paul on |