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Can link Wiegand to Arduino? can i use other rfid tags?

PostPosted: Sun Dec 30, 2012 6:30 pm
by j6433
3 questions...newbie..>.<

1
im using Atmega 2560 and i want to interface Wiegand RFID reader to arduino,
http://www.cytron.com.my/viewProduct.php?pcode=RFID-IDR-WIEGAND&name=Wiegand%20RFID%20Reader
is this possible? because my seniors did it with PIC but im uisng arduino instead...

2
And the voltage stated 12V wow its so high :S currently im using Li-Po 11.1V which is solely used to supply power to SPG-30K http://www.cytron.com.my/viewProduct.ph ... R/MWJw1Vo=
so is the voltage or current sufficient if i pull out the power from the 11.1V Li-Po for this RFID reader? im scared that the RFID reader will not operate due to too low voltage something like this...

3
the Wiegand RFID reader stated there that it iss compatible with 125kHz RFID tags. But the problem now is that i need a much smaller RFID tag http://www.cytron.com.my/viewProduct.ph ... FID%20Card this one is too big already...i mean the surface area.. is there any place we can find a much smaller surface area RFID card? it is best if i can have half size of the RFID card that cytron sells.. we need to use also 125kHz right?

Re: Can link Wiegand to Arduino? can i use other rfid tags?

PostPosted: Sun Dec 30, 2012 7:11 pm
by shahrul
If you understand how Wiegand signal, you can interface with any microcontroller.

Wiegand have two wires DATA0 and DATA1. Default this two wires is at HIGH condition. If bit 0, the DATA0 will goes LOW. If bit 1, the DATA1 will goes LOW. Ex RFID Wiegand.

But, the problem is you want capture the signal. If you program "if" condition, you will sometimes miss the bit. So, better use microcontroller that have two external interrupt.

Re: Can link Wiegand to Arduino? can i use other rfid tags?

PostPosted: Tue Jan 01, 2013 9:32 am
by j6433
two external interrupt? :S didnt quite understand about that :|

Re: Can link Wiegand to Arduino? can i use other rfid tags?

PostPosted: Tue Jan 01, 2013 9:52 am
by shahrul
j6433 WROTE:two external interrupt? :S didnt quite understand about that :|

Interrupt is a special function on any microcontroller. Maybe you can search 'arduino interrupt'

Re: Can link Wiegand to Arduino? can i use other rfid tags?

PostPosted: Wed Apr 24, 2013 10:04 pm
by j6433
can we mute the wiegand rfid reader when scanning? o.o