Host personal Jupyter notebook on RPI server

Install

sudo apt-get install python3-numpy python3-pandas python3-matplotlib

sudo apt-get install jupyter-notebook

Configure jupyter notebook

jupyter-notebook --generate-config

c.NotebookApp.ip = '192.168.1.6'

c.NotebookApp.port = 8890

c.NotebookApp.allow_remote_access = True

c.NotebookApp.open_browser = False

Setup Password

jupyter notebook password

Install any additional python packages

pip install panda-datareader

Start jupyter notebook

jupyter notebook

Let's try

1. Open browser and enter url http://192.168.1.6:8890/ 
2. Enter password
3. Create a notebook directory inside home directory
4. Create a notebook = finance
5. Create cell and run, add run

<div><br class="Apple-interchange-newline">from pandas_datareader import data as finance import matplotlib.pyplot as plt import pandas as pd from datetime import datetime, timedelta endDate = datetime.today() startDate = endDate - timedelta(days=6) ticker = "ABR" ticker_data = finance.DataReader(ticker, start=startDate.strftime('%Y-%m-%d'), end=endDate.strftime('%Y-%m-%d'), data_source='yahoo')['Close'] ticker_data.plot(title="{ticker} Closing Price".format(ticker = ticker)) ticker_data.to_frame().head(9)</div>

from pandas_datareader import data as finance

import matplotlib.pyplot as plt

import pandas as pd

from datetime import datetime, timedelta

​

endDate = datetime.today()

startDate = endDate - timedelta(days=6)

ticker = "AAPL"

​ticker_data = finance.DataReader(ticker, 

                       start=startDate.strftime('%Y-%m-%d'), 

                       end=endDate.strftime('%Y-%m-%d'), 

                       data_source='yahoo')['Close']

​

ticker_data.plot(title="{ticker} Closing Price".format(ticker = ticker))

References

1. https://www.raspberrypi.org/forums/viewtopic.php?t=267204
2. https://jupyter-notebook.readthedocs.io/en/stable/public_server.html
3. https://riptutorial.com/pandas/example/6232/datareader-basic-example--yahoo-finance-

Listen to HD Radio using RTL-SDR

Radio station in north america broadcasts HD radio signals. HD radio signal can be seen in below frequency spectrum of 102.7 MHz channel. The 2 rectangle shaped band on both side of analog radio signal are Lower and upped side band respectively of HD Radio signals. NRSC-5 is standard protocol to transmit HD radio signal. 

To receive and nrsc-5 radio, i have cross compiled (win64) nsrc program on pi using below commands

sudo apt install git build-essential cmake autoconf libtool libao-dev libfftw3-dev librtlsdr-dev
cd ~/dev/
git clone https://github.com/theori-io/nrsc5.git
cd nrsc5 
sudo apt install mingw-w64
support/win-cross-compile 64

Copy libnrsc5.dll and nrsc5.exe to windows and run

nrsc5.exe 102.7 0

if you get below error, stop any other which is using SDR device like SDRSharp and run it again.

usb_open error -3
Please fix the device permissions, e.g. by installing the udev rules file rtl-sdr.rules

References 

1. NRSC-5 https://www.nrscstandards.org/standards-and-guidelines/documents/standards/nrsc-5-d/nrsc-5-d.asp
2. nrsc github - https://github.com/theori-io/nrsc5