WTB: 200 RFID tags plus reader

To post in this sub-forum you must have made 100 posts or have Trust status or have completed our ID Verification

Forums › Offers and Wanted › WTB: 200 RFID tags plus reader

DarkShadow

1647 posts

Uber Geek

#75004 11-Jan-2011 16:51

So I am looking for around 200 RFID tags, plus a reader. Anyone know where I can buy one cheaply?

tomgeeknz

923 posts

Ultimate Geek

#426208 11-Jan-2011 16:56

http://www1.jaycar.co.nz/productView.asp?ID=ZZ8954&CATID=33&form=CAT&SUBCATID=829

Niel

3267 posts

Uber Geek

Trusted

#426252 11-Jan-2011 19:02

What type of tags? You get 125kHz, 134kHz, and ~13MHz to name a few. Then there is FSK and ASK, half duplex and full duplex, read-only and rewriteable.

What type of reader? Hand-held with LCD, PC interface, RS232 module, Bluetooth.

You can never have enough Volvos!

DarkShadow

1647 posts

Uber Geek

#426695 13-Jan-2011 01:24

I actually don't know much about RFID so would appreciate some guidance.

Here's the scenario. At church, we want to mark attendance. As people leave, they drop their name badges into a box. After everyone has left, a worker collects the tags from the box and records them by hand.

What I was thinking was attaching rfid tags to the name badges. So the worker could just collect the tags, then dump them a dozen at a time onto the reader like you do in the Auckland libraries.

Is this possible to do cheaply? (We have people writing the software, just wondering about the hardware.)

Niel

3267 posts

Uber Geek

Trusted

#426936 13-Jan-2011 20:22

I'm an electronic engineer at Tru-Test which has a significant international market share in RFID animal identification (and weighing scales and milk meters and electric fencing). I would recommend a barcode reader. Zero cost (apart from ~$50 reader in series with PC keyboard). Look for "code 39" font which is the only one I'm aware of where symbols are not affected by preceding symbols. There is a freeware TTF (true type font) available on the internet. It does numbers and letters, so you can print the member's name in barcode form.

It is hard to read multiple tags cheaply, unless you have the purchase volumes to bring the per-unit price down (like libraries). An intelligent reader module alone can easily cost $1000. Off-the-shelf readers are intended for reading single tags, most will not read multiple tags.

(Which church?)

You can never have enough Volvos!

mentalinc

3226 posts

Uber Geek

Trusted

#427283 14-Jan-2011 21:34

This is kinda border line.
Why are you mark attendance to church?

CPU: AMD 5900x | RAM: GSKILL Trident Z Neo RGB F4-3600C16D-32GTZNC-32-GB | MB: Asus X570-E | GFX: EVGA FTW3 Ultra RTX 3080Ti| Monitor: LG 27GL850-B 2560x1440

Quic: https://account.quic.nz/refer/473833 R473833EQKIBX

Niel

3267 posts

Uber Geek

Trusted

#427353 15-Jan-2011 09:57

mentalinc: This is kinda border line.
Why are you mark attendance to church?

Churches also run Bible schools, music/performance events, mother groups, etc. I can not think of a situation where a normal church service requires members to wear name tags (except ushers etc.), I don't believe any church would go to that extend.

You can never have enough Volvos!

MrWestie

116 posts

Master Geek

Trusted

#430145 23-Jan-2011 11:23

I too would recommend barcodes.

To keep costs down you would want to use a simple single tag reader.

But the read time is quick so you could 3-5 a second.

I get my RFID supplies from here

http://www.stronglink.cn/english/reader.htm

I would use

http://www.stronglink.cn/english/sl500.htm

SL500L
-USB

http://www.stronglink.cn/english/label.htm

Stick the tag onto the back of your printed nametags.

us$30 reader + $50 for tags + $30 shipping

us$110