Oran's RFID Buying Guide

Here live's my recommendations for RFID readers/writers

Oran's RFID Buying Guide

Here lives my recommendations for RFID readers/writers

Last updated 20210705


RFID has families of technology that live under the same umbrella.

Low Frequency:

Uses: access control doors commonly found in office buildings

my low frequency & high frequency nfc reader

High frequency:

Uses: nentendo action figures, bus passes, event tickets, perimeter security systems, and way more!

For way more information see this blog post:

The Beginners Guide to RFID - Basics of RFID Technology

RFID Buying Guide

Anyways here's my recommendations for devices to buy

Readers only:

Dangerous KBR1 RFID Reader

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.

Dangerous KBR1 RFID Reader | RFID & NFC Chip Implants and Biohacking products
Custom gadgetry for the discerning biohacker


i havent bough this one my self but may give you and idea for cheaper options

Amazon.com: LANMU RFID Card Reader, USB RFID Card Reader,RFID Card Reader 125khz Contactless Proximity Sensor Smart ID Card Reader EM4100: Computers & Accessories

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.

Adafruit PN532 NFC/RFID Controller Shield for Arduino + Extras : ID 789 : $39.95 : Adafruit Industries, Unique & fun DIY electronics and kits


Also comes in a non arduino shield flavor if your feeling adventours!

PN532 NFC/RFID controller breakout board [v1.6] : ID 364 : $39.95 : Adafruit Industries, Unique & fun DIY electronics and kits

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

Search for  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...

Proxmark3 Easy (Iceman/RRG) | RFID & NFC Chip Implants and Biohacking products

Free Option:

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

NFC Tools

NFC Tools - Apps on Google Play

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 android phone

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?

The NFC Data Exchange Format (NDEF) - dummies

2) Rfid implants (btw i have this one in my hand 😏)

NExT RFID + NFC Chip Implant

NExT RFID + NFC Chip Implant | RFID & NFC Chip Implants and Biohacking products

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

Opening Door with Hand Implant : The Saga/review
Review for: Laxre RFID, Fingerprint, Bluetooth Door Lock - Amazon.com[https://www.amazon.com/Laxre-Bluetooth-Fingerprint-biometric-Touchscreen/dp/B08HW875VF] TL;DR Great if you are just using rfid and finger print reader, touch buttonsare useable but not great if you are at night and need to…


by oran collins
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