Rfid mfrc522

[Dave]

Try using something like "LOOK232" as it can send ASCII or HEX data to your device as a packet.

[ShoKre]

Hi dear hobbyist and pros,
i ordered few cheap rfid boards with mfrc522 and first i try to communicate trough PC using UART
i found that if you want to use UART as first choice communication, you need to cut one line
on pcb and resolder it to gnd I2C and EA pin 1 and 32, actually just one other is already at gnd.

so if modified, it should be able to communicate with rs232 so i found Rc52xPcSerial.2.1.exe utility
very difficult to find, and it give something out, but not clear what is going on because utility is
complex, but already done for testing. I don't have time right now but my idea was to test it
in VB6 as all (old players) us who work on PBP are familiar with VB6, and there is a bit faster to
experiment an get live feedback then writing pic hundred times... once when it work on pc i can
rewrite code to PBP using 2 USART on 18f and that's solution for problem that i was planing, but
i have interrupt problem on my job, they never let me out from ISR so i have not time to play


edit:
as i read from few people which using it with arduino, it seams that initialization is needed
it has to activate RF section, and initialize communication RF parameters because at
boot time is disabled to not waste energy. that's reason why you don't read changed buffer when
you approach with card/badge