Raspberry Pi

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This article will be all about my Raspberry Pi projects.


  • Find Raspberry Pi IP address on your local WiFi network:
$ sudo nmap -sP | awk '/^Nmap/{ip=$NF}/B8:27:EB/{print ip}'


# trigger IPv6 neighbour discovery with link-local scope multicast:
ping6 -c2 -I $IFACE ff02::1 > /dev/null
# print the results, filtered by MAC address vendor prefix of Raspberry Pi Foundation:
ip -6 neigh | grep b8:27:eb


$ arp-scan --interface=eth0 --localnet | grep b8:27:eb
  • Store the following in your ~/.ssh/config file:
Host rpi
    HostName 10.x.x.x
    User pi
    ProxyCommand none
    TCPKeepAlive yes
    ServerAliveInterval 5
    PubkeyAuthentication no
    PreferredAuthentications keyboard-interactive,password


$ ssh rpi

Or, better yet, use SSH keys.

  • Find out where your Raspberry Pi was made and other details about the hardware:
$ cat /proc/cpuinfo | grep -E '^Hardware|^Revision|^Serial'
Hardware	: BCM2835
Revision	: a22082
Serial		: 0000000038e10351

Then, go here or here and, using the above hardware/revision codes, find out where you RPi was made.

So, in my case, I have a Raspberry Pi 3 Model B manufactured by Embest in 2016 (Q1).

Useful commands

  • Check which network the wireless adaptor is using:
$ iwconfig
  • Print a list of the currently available wireless networks:
$ iwlist wlan0 scan
  • Show details about the device's memory:
$ cat /proc/meminfo
  • Show the size and number of partitions on the SD card or hard drive:
$ cat /proc/partitions
  • Show which version of the Raspberry Pi you are using:
$ cat /proc/version
  • Show all of the installed packages that are related to XXX:
$ dpkg --get-selections | grep XXX
  • Show all of the installed packages:
$ dpkg --get-selections
  • Show the IP address of the Raspberry Pi:
$ hostname -I
  • List USB hardware connected to the Raspberry Pi:
$ lsusb
  • Show the temperature of the CPU:
$ vcgencmd measure_temp
  • Show the memory split between the CPU and GPU:
$ vcgencmd get_mem arm && vcgencmd get_mem gpu

External links