Here lives my recommendations for RFID readers/writers
Last updated 20210705
RFID has families of technology that live under the same umbrella.
Uses: access control doors commonly found in office buildings
Uses: nentendo action figures, bus passes, event tickets, perimeter security systems, and way more!
For way more information see this blog post:
RFID Buying Guide
Anyways here's my recommendations for devices to buy
Dangerous KBR1 RFID Reader
reads Low and high frequency! acts as a usb keyboard, and can be used with android phones!
CONS: is only a reader :( so no writing low frequncy
I own this one. can vouch for it.
i havent bough this one my self but may give you and idea for cheaper options
NOTE only does 125khz
Adafruit PN532 NFC/RFID
Shield for Arduino
NOTE! really important! this only supports NFC! dont buy it for low frequncy!
PROS: its from adafuit! anything from Adafruit has great community support great docs and exmaple code
CONS: only supports NFC, and is around $40's as of writing
I don't own this one, but can vouch for Adafruit products and can say with confidence that you will not be disappointed.
Also comes in a non arduino shield flavor if your feeling adventours!
THE CHEEP OPTION! (assuming you already have 1 arduino)
RC522 RFID Reader Module (amazon like $3-$6 bucks USD)
Pros: its cheap! and often comes with a few extras. great to get hacking or put into a project for not much coin.
Cons: its cheap. It only does high frequency! most of the ones on this list only do high frequency :(
How to find on amazon
RC522 RFID Reader Module
Going pro: Proxmark3 Easy (Iceman/RRG) ~$80
Pros: does both write/read low and high frequency! you pay for what you get for..
Cons: cost, complicated well its open source...
Modern android phone!
Most modern android phones have nfc built in!
free, as in free beer!
did i mention it was free?
CONS: does suport low frequncy :(,
recommend app is
can get really low level! and write actual custom data! fun for basic hacking
A) If your
on a budget go with the
RC522 RFID or a free
B) If you have money to blow, get a proxmark
C) If you only need to read, the
dangerous things reader is a great cheapish option, and its good quality and support anything that supports usb keyboards!
Fun bonus stuff for the avid reader!
1) How the hell does nfc data packets work?
2) Rfid implants (btw i have this one in my hand 😏)
NExT RFID + NFC Chip Implant
Feel free to email me if you have any questions about the wild world of implants!
or ask your questions over to the dangerous things forum
also see my post on rfid door locks using rfid implants
by oran collins github.com/wisehackermonkey oranbusiness🕳gmail ($) com 20210705