Rfid Reader

Hi,
I bought Parallax RFID reader and having problem to convert BS1 codes to Picbasic. I am using 16F84A/ 4Mhz . the codes is in this site:
http://info.hobbyengineering.com/spe...FIDReader1.pdf
I think the main problem is how to convert SERIN from BS1 to Picbasic.
The BS1 code:
SERIN Rx, T2400,($0A)
SERIN Rx, T2400, tag0, tag1, tag2, tag3, tag4
SERIN RX, T2400, tag5, tag6, tag7, tag8, tag9
My Picbasic code:
SERIN Rx, N2400,($0A)
SERIN Rx, N2400, tag0, tag1, tag2, tag3, tag4
SERIN RX, N2400, tag5, tag6, tag7, tag8, tag9
My picbasic code failed to find the header ($0A).
I would appreciate your help. Thank you

The BS1 code:
SERIN Rx, T2400,($0A)
SERIN Rx, T2400, tag0, tag1, tag2, tag3, tag4
SERIN RX, T2400, tag5, tag6, tag7, tag8, tag9

I read through the datasheet and here is how I would do it in PICBasic:

tag var BYTE[10] ' Creates a byte array of 10 bytes

SERIN Rx, N2400,[WAIT ($0A),STR tag\10\$0D]

The above will wait for $0A then recieve either 10 bytes of data or stop once it recieves $0D, which ever comes first.

This should work great and same you tons of code space. Enjoy.

Why don't you try changing the N2400 baud to T2400. BS1 does not have level shifter so these should match (plus the RFID says it will output to any TTL-compatible UART).

So the PB code would be:

Code:

---

SERIN Rx, T2400,($0A)
SERIN Rx, T2400, tag0, tag1, tag2, tag3, tag4
SERIN RX, T2400, tag5, tag6, tag7, tag8, tag9

---

Opps sorry missed that part of it. If you use both suggestions you should be all set.

Dear DynamoBen and Languer,
I am so happy to hear from you, I am out of town now and will try it and let you know. I have been thinking about building some rfid door locks for my apartement complex . It will save me a lot time and $ if this project turn out to be good.
Thank you very much.
Thai Vu

hi,
i m doing project in rfid.i need the details abt the power source for that rfid reader,i m using 125khz reader.if any one knows plz help and provide some details abt the power supply circiut.
sakthi