AVR-Chat

Hi

The query is about RFID , I have RFID tag ( Transponder) Clamshell as
125Khz ,so:

1.chip number U2270B or H4102 could comply with this kind of RFID tag ?
2.if yes, how can I connect this chip ( IC ) with micro controller AVR
? by UART ,maybe?
3.what is difference between ISO 14443 and Wiegand protocol?

appreciate your urgent help.....

On 9 Dec 2007 at 15:01, Musab Fakrhi wrote:

> Hi
> 
> The query is about RFID , I have RFID tag ( Transponder) Clamshell as
> 125Khz ,so:
> 
> 1.chip number U2270B or H4102 could comply with this kind of RFID tag ?
> 2.if yes, how can I connect this chip ( IC ) with micro controller AVR
> ? by UART ,maybe?
> 3.what is difference between ISO 14443 and Wiegand protocol?
> 
> appreciate your urgent help.....
> 

	'Urgent' is a magic word.
	When it is heard, the cost rises by a factor of ten or more ...

	MJ

Answers to your questions:

1.  Yes, you can make these chips comply.  The question now is, how much 
will it cost you.  It's only a matter of the depth of your pockets.

2.  With wire and solder.  Wire wrap if you prefer.  You can use a UART, 
USART, or just plain old gas.

3.  Their names, for starters.

For more in-depth responses - we accept VISA, MasterCard, AMEX, 
Discover, checks, cash with proper ID, and real estate.


REB



Musab Fakrhi wrote:

>Hi
>
>The query is about RFID , I have RFID tag ( Transponder) Clamshell as
>125Khz ,so:
>
>1.chip number U2270B or H4102 could comply with this kind of RFID tag ?
>2.if yes, how can I connect this chip ( IC ) with micro controller AVR
>? by UART ,maybe?
>3.what is difference between ISO 14443 and Wiegand protocol?
>
>appreciate your urgent help.....
>
>
>
>  
>