Long range RFID reader

Using Arduino Sensors
1

Hey guys. I'm trying to make a long-range RFID reader which could read 13.56MHz passive RFID tags at a minimum distance of 1m. I'm planning to use an Arduino Uno for this purpose. But I'm not sure of what reader module should I use. I have already checked the RC522 module, but it's reading range does not exceed 5 cm. Please help me.

2

I'm trying to make a long-range RFID reader which could read 13.56MHz passive RFID tags at a minimum distance of 1m.

Good luck! That will be quite expensive. With cheap hardware you get ranges of about 10-15cm, using better antennas you might get to 20cm. To get to 1m you need more transmission power and much bigger antennas. And someone how knows how to build such specialized antennas. Expect costs in the hundreds to thousands of dollars.

3

30 seconds into a search for "long range RFID reader" and I know that you get long range from active RFID tags

30 seconds into a search for "long range 13.56 RFID" and I have a dozen candidates for an RFID antenna that will let me unlock the house from the truck, 50 feet away, with a passive RFID tag.

people here get crabby when you don't do your homework

4

Can you provide a link to that 15m range antenna? I get a lot of Chinese stuff where a long range means 3-6 cm. The only one I found with more than 1m costs over 100$ (in China!) and needs a 6W transceiver. I'm curious for the solution you found!

5

it's the seller claiming 15 meter range:

https://www.alibaba.com/product-detail/uhf-rfid-reader-rfid-13-56mhz_60154418224.html?spm=a2700.7724857.normalList.33.1e7e5738f3ZFOv

and 25 meters:

6

it's the seller claiming 15 meter range:

This product is no longer available.

That's not for 13.56MHz RFIDs. It's operating in the 920MHz range.

and 25 meters:

860-960mhz Long Range Oem Uhf Rfid Reader Module - Buy Rfid Reader Module 1 Port,860-960mhz Rfid Reader Module,860-960mhz Long Range Rfid Reader Module Arduino 900 Mhz Rf Long Range Antenna Product on Alibaba.com

Although the Alibaba title says 13.56MHz, the antenna is operating at 840-960MHz according to it's technical details. I have doubts you get that running with standard 13.56MHz RFIDs. The title says also UHF which is definitely not 13.56MHz.

7

Hey,

why not try to use UHF RFID modules? it reads far more than HF modules. chekc this small low power UHF RFID module, i think it is pretty suitable for your applicaitons.

https://www.infiniterfid.com/products/uhf-rfid-modules/ium200-small-uhf-rfid-module/

thanks,