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Raspberry Pi Technology, Related Information, How-To’s, Tips, Tools, and Guides

UPDATE NODE.JS ON A HOMEBRIDGE

Running a homebridge on a raspberry pi, to connect all of your IOT is fun. However node.js does not update automatically when updating the pi.

to update node.js

Open a terminal

type:
sudo hb-service update-node

The package will update

reboot

And your Node.JS is now up to date

UPGRADE PORTAINER COMMUNITY EDITION ON DOCKER / / RASPBERRY PI

Here is a quick how-to for the way I updated my portainer to the latest

SSH to the Raspberry Pi 5

login

sudo su –
docker stop portainer
docker rm portainer
docker pull portainer/portainer-ce:latest
docker run -d -p 8000:8000 -p 9443:9443 –name=portainer –restart=always -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainer-ce:latest

Open a browser, navigate to your Raspberry Pi 5:9443 and then login

Success!

CLEAR COMMAND HISTORY IN LINUX

It is common practice to simply type in commands into a terminal and leave the terminal with never clearing the history. The problem is, if someone accesses your system, they can see everything you have done, which can be an issue.

To check your terminal history, Open a Terminal and type:
history

To clear the History, simply type:
history -c

Now you can check your history again by typing:
history

And you can see it is clear. Do this before you log off your computer every time for good measure

ALFA DRIVER INSTALL FOR KALI 2202.1 ON RASPBERRY PI 4

Open a terminal

sudo apt-get update

sudo apt-get upgrade

ifconfig

Note your wireless adapters…if any are installed

lsusb

Note the USB devices on the pi. You will not see the ALFA wifi device

Next type

sudo apt-get install realtek-rtl88xxau-dkms

Drivers will install, this may take a few minutes.

Once it is done type the following

lsusb

You will now see the Realtek Adapter

ifconfig

You will now see your ALFA wireless card

SCRAPE DAILY SHORT DATA FROM FINRA

Here is a quick how-to on getting the daily short data. From this I look to see if the short volume has increased or decreased on a particular stock by leveraging a Power BI Dashboard that I had created. This guide is to show the simple command I run to initially scrape all the data

From a Linux box

Open a terminal

Type:
mkdir FINRA
cd FINRA
wget -r -np http://regsho.finra.org/regsho-Index.html

After it downloads the data I run
rm *.html

To remove the additional files that are not relevant, and then I move the data to where I need it

RASPBERRY PI 4 – OS VERSION

Quick, simple trick to see the Version of the Operating system that you are using

Open a terminal
from a terminal, type:
cat /etc/os-release

It will return something like this
NAME=”Ubuntu”
VERSION=”21.04 (Hirsute Hippo)”
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME=”Ubuntu 21.04″
VERSION_ID=”21.04″
HOME_URL=”https://www.ubuntu.com/”
SUPPORT_URL=”https://help.ubuntu.com/”
BUG_REPORT_URL=”https://bugs.launchpad.net/ubuntu/”
PRIVACY_POLICY_URL=”https://www.ubuntu.com/legal/terms-and-policies/privacy-policy”
VERSION_CODENAME=hirsute
UBUNTU_CODENAME=hirsute

As you can see, my version is Ubuntu 21.04

SCRAPING YAHOO FINANCE FOR ALL STOCK DATA

I found a great little snippet of code over on Kaggle,


and needed to build a system to run it from
https://tacticalware.com/jupyter-installation-on-a-headless-raspberry-pi-4-running-ubuntu-20-10/

Once you build the system as I did in my guide above you will need to do one other thing to get it to run
Open Putty
SSH to your Jupyter Pi
Login
Type:
sudo bash
pip instal yfinance

Now on another computer you can open your Jupyter notebook at
http://Jupyter:8888

Then go back to


Click File
Click Download
It will give you a file with the extension of ipynb

You can then go back to your Jupyter notebook and upload it

Once you upload it, run the notebook and it should scrape about 2.5GB of data, direct for your viewing pleasure

Hardware that I used:
Raspberry Pi 4 (4gb)
https://amzn.to/3q551IO

Plugable USB C to M.2 NVMe Tool-free Enclosure
https://amzn.to/3lflV3L

CanaKit 3.5A Raspberry Pi 4 Power Supply (USB-C)
https://amzn.to/3fNTYPu

CanaKit Raspberry Pi 4 Micro HDMI Cable – 6 Feet
https://amzn.to/33u5hr9

Western Digital 500GB WD_Black SN750 NVMe
https://amzn.to/3nZ5pH4


INSTALL MONGODB ON RASPBERRY PI 4

By far the best guide I have found, in starting this journey, was written by Mark Smith on https://developer.mongodb.com/how-to/mongodb-on-raspberry-pi/

If you want to see why things work the way they do, please visit his guide. My guide below is just the commands, and how I am connecting into the database once it is setup.

To begin, first you will want to install Ubuntu Server 20.10 as described here:
https://tacticalware.com/install-ubuntu-server-20-10-64-bit-on-raspberry-pi-4-using-a-m-2-drive/

Once you are up and running, ssh into the Raspberry Pi
Login

From the terminal run the following:
sudo bash

wget -qO – https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add –

echo “deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse” | tee /etc/apt/sources.list.d/mongodb-org-4.4.list

apt-get update

apt-get install -y mongodb-org

systemctl daemon-reload

systemctl enable mongod

systemctl start mongod

systemctl status mongod

CTRL button +c to exit

mongo
use admin

db.createUser( { user: "admin",
 
        pwd: "SuperSecretPassword",

        roles: [ "userAdminAnyDatabase",

                 "dbAdminAnyDatabase",

                 "readWriteAnyDatabase"] } )

exit

nano /etc/mongod.conf

Add these lines to the end of the file

security:

   authorization: enabled

CTRL +x to Exit
Y to Save

systemctl restart mongod

mongo

db.adminCommand({listDatabases: 1})

Make sure you had no errors

exit

mongo -u “admin” -p

Enter your admin password for mongo, aks your SuperSecretPassword

Type
db.adminCommand({listDatabases: 1})
This will list out your databases and ensure you created it properly

exit

nano /etc/mongod.conf
and Change the bind ip from 127.0.0.1 to 0.0.0.0

net:
   port: 27017
   bindIp: 0.0.0.0

CTRL +x to Exit
Y to Save

systemctl restart mongod

ufw allow 27017/tcp

MongoDB is now successfully setup and running. On to configuring the Windows 10 system

To connect to the MongoDB from a Windows 10 computer

Open an Internet Browser on your Windows 10 computer
Navigate to https://robomongo.org/
Download the Robomongo Robo 3T Client
Once you install it, add these settings to connect to your system
Click Create
Connection Tab
Type – Direct Connection
Address – The IP of your Raspberry Pi
Port 27017
Authentication Tab
Check mark Perform Authentication
Database is admin
User Name is admin
Password is your SuperSecretPassword
Auth is SCRAM
Click Save
Click Connect

You are now connected and ready to run with your MongoDB environment

Hardware that I used:
Raspberry Pi 4 (4gb)
https://amzn.to/3q551IO

CanaKit 3.5A Raspberry Pi 4 Power Supply (USB-C)
https://amzn.to/3fNTYPu

CanaKit Raspberry Pi 4 Micro HDMI Cable – 6 Feet
https://amzn.to/33u5hr9

Western Digital 500GB WD_Black SN750 NVMe
https://amzn.to/3nZ5pH4

Plugable USB C to M.2 NVMe Tool-free Enclosure
https://amzn.to/3lflV3L

INSTALL UBUNTU SERVER 20.10 64-Bit ON RASPBERRY PI 4 USING A M.2 Drive

This guide shows you how to install an Operating System on a Raspberry Pi 4. The one I chose for this guide is Ubuntu Server 20.10 64 bit, so if you are installing that, you can follow along easily. If you are wondering which hardware I used, the exact items are linked at the bottom

On a Windows computer
Insert your USB M.2 Drive into the USB 3.0 Port on your Windows computer
Open a web browser
Navigate to
Download the Raspberry Pi Imager

Once it is downloaded, double click the imager.exe file
Select Yes
Click Install
Checkmark Run Raspberry Pi Imager
Click Finish

Now that the Raspberry Pi Imager is running
Click Choose OS
Scroll down and select Ubuntu
Then select Ubuntu Server 20.10 (RPI 3/4/400) 64-BIT
Select your SD Card (500GB WD M.2 Drive)
Click Write
All existing data …. will be erased. Are you sure you want to continue?
Click Yes
Data is written to the SD Card
The data is automatically verified after it is written
Once it finishes you will see the message that “you can now remove the SD card from the reader”
Remove the card
Click Continue

Now back on the Raspberry Pi
Plug in network cable
Connect the keyboard
Plug in a mouse
Connect the HDMI cable
Install the M.2 USB Drive you just made (up above)
Plug in the power (Last step)

Boot up your Raspberry Pi
The first time you login the username is ubuntu
The password is ubuntu
You will be forced to change the password immediately
Now you will want to run the following commands
sudo bash
apt-get update
apt-get dist-upgrade
y
apt install net tools
ifconfig
Note your ip address

You can now connect remotely and finish setting up the system

You are done. Your Raspberry Pi 4 is setup with the Ubuntu Server 20.10

Hardware that I used:
Raspberry Pi 4 (4gb)
https://amzn.to/3q551IO

SanDisk 32GB Ultra microSDHC UHS-I Memory Card with Adapter
https://amzn.to/2Vfvo0y

CanaKit 3.5A Raspberry Pi 4 Power Supply (USB-C)
https://amzn.to/3fNTYPu

CanaKit Raspberry Pi 4 Micro HDMI Cable – 6 Feet
https://amzn.to/33u5hr9

Western Digital 500GB WD_Black SN750 NVMe
https://amzn.to/3nZ5pH4

Plugable USB C to M.2 NVMe Tool-free Enclosure
https://amzn.to/3lflV3L

Thanks for reading…….

RASPBERRY PI 4 – FLIGHTAWARE SETUP

Flightaware…an amazing app, will give you a free subscription if you monitor the skies above your house. To setup a raspberry pi with this ability, perform the following

This guide assumes you have a Raspberry Pi, already setup with Raspbian. If you don’t have this, follow the guide below:
https://tacticalware.com/install-raspbian-os-on-raspberry-pi-4/

Once you are up and running with your Raspberry Pi, you will need to plug in your flightaware usb dongle which can be found on the bottom of this page

After that, run the following commands:
From your Raspberry Pi “Desktop”
Open a terminal
sudo bash
apt-get update
apt dist-upgrade
reboot

Your system will now reboot and come back up to your “Desktop”
Open a terminal
sudo bash
wget http://flightaware.com/adsb/piaware/files/packages/pool/piaware/p/piaware-support/piaware-repository_3.7.1_all.deb
dpkg -i piaware-repository_3.7.1.deb
apt-get update
apt-get install piaware
piaware-config allow-auto-updates yes
apt-get install dump1090-fa
reboot


Your system will now reboot and come back up to your “Desktop”
Open a terminal
sudo bash
ifconfig
get the ip address of your Pi
Open the Chromium web browser on your Raspberry Pi
Navigate to https://flightaware.com/adsb/piaware/claim
Create an account or Login and claim your piaware.
If successful you will see a message similar to the following message on the web page:
PiAware – Claim and Link a Brand New PiAware Ground Station
Success!
You claimed the following 1 receivers:
162323d5-6532-4s436-9486-d6173334
Next you will want to click on the link listed in your Success message:
Great news! Your account is associated with the following PiAware receivers and you can view your statistics here:
Now you will be in the config page of your flightaware account
So you will want to click on the Gear icon
Configure your location and the height of the antenna

And you are done!

You are now monitoring the sky overhead

Hardware I used:
Raspberry Pi 4 (4gb)
https://amzn.to/3q551IO

SanDisk 32GB Ultra microSDHC UHS-I Memory Card with Adapter
https://amzn.to/2Vfvo0y

CanaKit 3.5A Raspberry Pi 4 Power Supply (USB-C)
https://amzn.to/3fNTYPu

CanaKit Raspberry Pi 4 Micro HDMI Cable – 6 Feet
https://amzn.to/33u5hr9

SanDisk MobileMate USB 3.0 microSD Card Reader (Only needed if you dont have a Micro SD Reader/Writer slot in your computer)
https://amzn.to/39toi0G

Flightaware USB Stick
https://amzn.to/3aFKpju

Flightaware Antenna
https://amzn.to/3pZ3yn3