DIY LF antenna for Proxmark 3 Easy

[Pilgrimsmaster]

@XEMON

Any idea of the ta get resistance and inductance we’re looking for?

Coil Inductance Calculator

I’ve been designing inductor coils to serve as NFC antennas a bunch lately. I tried some online calculators and they were hit-or-miss. I combed through some Application Notes published by the popular NFC chip manufacturer NXP and discovered some reliable information on designing PCB trace inductors for NFC applications. I used this information to create a small java applet that runs in the command line. Here is everything you need to run it zipped up: Inductance_Calculator.zip (106.1 KB) In th…

Plus
Although @ODaily says

@Compgeek

This post isn’t a tutorial

if you start at the top post, he gives you a very good starting point

DIY LF antenna for Proxmark 3 Easy

Hey everyone! This post isn’t a tutorial, but theres a lot of things you’ll be able to take away from this if you’re wanting to build you own. Figured if I’m already making one, I may as well share my journey and write it up for those playing along at home! Thanks to @TomHarkness for getting me on the right track with this - without further ado, let’s get this project started! [IMG_0126] Supplies acquired! @TomHarkness suggested 9mm ferrite rod and 0.25mm enamel wire as a place to start, wi…