Raspberry Pi set up for development

I had a really old Raspberry Pi sitting around that I set up for development yesterday. The Pi 2 doesn't come with WiFi by default, so I set up a WiFi Adapter so it would be easier to develop on my localhost and ssh as necessary.

Environment:
Host: macOS Catalina
Raspberry Pi 2 Model B
Raspberry Pi USB WiFi Adapter (I have this one)

1. Install Raspberry Pi OS image on an SD card: Used Raspberry Pi Imager rbi-imager for macOS, chose Raspberry Pi OS Lite (32-bit) since I didn’t want the desktop environment - https://www.raspberrypi.org/documentation/installation/installing-images/
2. Boot into the Raspberry Pi and login
3. Confirm the OS version. Mine is "Raspbian GNU/Linux 10 (buster)"

cat /etc/os-release

4. Update settings for US. I did I1, then I4, then I3. I think I3 may be the only one I needed for my keyboard to recognize the double-quote key

   sudo raspi-config 
   Choose 4 Localisation Options 
   Choose I1 Change Locale => en_US.UTF-8 UTF-8 
   Choose I3 Change Keyboard Layout => Generic 101-key PC => Other => English (US) (Country of Origin) => English (US) (Keyboard layout) => The default for the keyboard layout => No compose key => 
   Choose I4 Change WLAN Country => US United States 
   sudo reboot
   

5. Configure Raspberry Pi to connect to WiFi
   
   Backup file and copy to your home folder

   sudo cp /etc/wpa_supplicant/wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf.orig
   cp /etc/wpa_supplicant/wpa_supplicant.conf ~
   

   
   Add below to the end of the file. I had to add scan_ssid=1 because my SSID is not broadcasting.  NOTE:  If you have special characters in your password, e.g. double quote I didn't have to escape it but I had to add in key_mgmt=WPA-PSK config attribute (with no quotes).
   

   vi ~/wpa_supplicant.conf 
   
   network={ 
     ssid="<ssid>"
     psk="<secret password>"
     scan_ssid=1 
   } 
   

   
   Copy updated file back
   

   sudo cp ~/wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf 
   

   
   Verify if the “inet addr” is available on wlan0
   

   ifconfig wlan0 
   

   
   If not, reboot to connect
   

   sudo reboot 
   

   
   On reboot, I can see it says “My IP address is XXX.XXX.XX.XXXX”
   
   To verify internet connectivity perform a wget
   

   wget www.google.com
   

6. Enable ssh on Raspberry Pi

   sudo raspi-config 
   Choose I5 Interfacing Options 
   Choose P2 SSH => Yes 
   [Didn’t need to reboot]
   

7. Connect to Raspberry Pi via ssh from localhost, update macOS hosts file with Raspberry Pi IP
   

   sudo vi /private/etc/hosts 
   

   
   Added this to bottom of file
   

   # raspberry pi 
   XXX.XXX.XX.XXXX csrp
   

   
   ssh to the Raspberry Pi
   

   ssh pi@csrp
   

8. Shutdown the Raspberry Pi
   

   sudo halt