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Forum: µC & Digital Electronics Wiegand RFID reader is only beeping / Wiegand RDIF Reader piept nur


Author: John S. (john1999)
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--Feel free answer in English or German--

Hello,

I just received my two Wiegand RFID readers: 2x 
http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=... 
(001, ID)
Unfortunately, when I power up the reader (DC+12V on red cable, GND on 
black cable), my Reader is only beeping and red LED lights up. I receive 
nearly no data from the reader (even if there is a tag), only some zeros 
during the red cable is connected. Even after about one minute, the 
reader keeps beeping and LED keeps being on. I also tried the other 
reader I ordered from you (same model) and the same happened. It makes 
no difference if I connect the other 2 cables (blue (purple) and/or gray 
(ash)) to ground.
What is my mistake?

Thank you,
Johann K.

: Edited by User
Author: D. V. (mazze69)
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Johann K. wrote:
> What is my mistake?
How many ID-cards did u get with this reader?
Are these beeping codes documented anywhere?

Author: John S. (john1999)
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I got no cards/tags with this reader. I bought some from i-keys: 
Ebay-Artikel Nr. 200774233159
I don't know if there is a documentation, but my reader is similar to 
http://www.i-keys.de/de/A20Acr.html
But I think that a "one-minute-beep" can't be a normal feature.

Author: D. V. (mazze69)
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To recognize any valid card the reader must be programmed with their 
IDs. If the reader doesnt know any valid IDs, he probably will beep to 
indicate, that he was not teached to validate any ID-cards.
Try to get any informations of how to teach the reader the access 
control informations of your i-key cards.

Author: John S. (john1999)
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Thank you for your answer. I think you misunderstood what my reader 
does. It is only a "raw" reader which sends the ids of the cards to the 
controller (I try to use a raspberry pi). So you can't "teach" this 
reader; It will accept any cards and the raspberry pi will check if the 
id is permitted.

Author: D. V. (mazze69)
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Johann K. wrote:
> It is only a "raw" reader which sends the ids of the cards to the
> controller

Are you sure about that issue? I dont think so.
If this is true, so it's up to you, to validate any card-IDs within the 
software.

BTW: the egay link is not that informative to answer any further 
upcoming questions...

Author: John S. (john1999)
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D. V. wrote:
> Are you sure about that issue? I dont think so.
> If this is true, so it's up to you, to validate any card-IDs within the
> software.

Yes and yes. I use a raspberry pi with pidoorman, but this is not my 
problem. My reader only beeps all the time (I mean it never pauses 
beeping) and I don't know what I am doing wrong. The only thing I could 
imagine is the wiring. I connected a zener and a resistor (like shown at 
http://tonigor.com/pidoorman/images/ProtectionCircuit.jpg) to each D0 
and D1 and connected GND and DC+12V to my DC12V power supply. The two 
other cables (see eBay link above for more information) were left "in 
the air".

Author: John S. (john1999)
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Hello again!

I just want to you all the end of my story. I had some e-mail contact 
with the trader and I got my money back. So I ordered 2 new ones. Some 
days ago, the 2 new readers arrived and... worked. So it seems that my 
readers was broken.

Thank you for your help and advice,
Johann K.

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