LinuxQuestions.org - RPi3 and Kali Linux.. the struggle

First post to LQ, hello all! I hope this forum is a little more receptive than the other forums I've visited lol.. Anyway, some specs:

Raspberry Pi 3
Samsung EVO 32GB microSD
TP-Link tl-wn722n high gain wireless adapter
Linux Kali 4.4.50-v7 armv71 GNU/Linux

So basically I want to become an information systems security pro so I figured I'd start with penetration testing to understand how do penetrate a network, move on to learning how to defend against those attacks, with the ultimate goal of constructing security architecture that incorporates neural networks to encrypt data.

After about 10 seconds of research, it became clear that Linux was the most secure operating system out of mac/win/linux so I signed up for an online course on penetration testing using Kali. Unfortunately, the course uses virtualization software, which I despise. So, I ordered a Raspberry Pi 3, wrote an ISO image of Kali ARM architecture to a microSD card, and booted her up. I ran

Code:

apt-get update && apt-get upgrade && apt-get dist-upgrade

, resized my partition using gparted, and installed the full version of kali with

Code:

apt-get install kali-linux-full

. The problem I face now is getting Kali to detect my wireless adapter that I bought specifically for pen testing in Kali Linux (TP-Link tl-wn722n). I've tried running this command:

Code:

apt install firmware-atheros

but I'm not sure where to go from here. In order for me to continue on in the course, I have to have the wireless adapter working! Any suggestions for this networking noob? Thanks!