UliEngineering 0.4.21

Computational tools for electronics engineering

UliEngineering

A Python3 library for: - Data science - Electronics Engineering - Specialized algorithms - Physics which contains a collection of functions I haven't found elsewhere. Some algorithms have also been accepted on my blog https://techoverflow.net/

Pull requests and bugreports of any kind are happily accepted.

Installation

Run this command on your favourite shell:

sudo pip3 install UliEngineering

In order to install the latest bleeding-edge version, use:

sudo pip3 install git+https://github.com/ulikoehler/UliEngineering.git

We highly recommend you also install scipy:

sudo pip3 install scipy

(you can also use sudo apt install python3-scipy on Debian-based Linux distros).

While scipy is technically optional and listed as an optional dependency, many UliEngineering modules can't be used without it, including (might not be complete!):

• UliEngineering.Length
• UliEngineering.SignalProcessing.Interpolation
• UliEngineering.SignalProcessing.Correlation
• UliEngineering.Physics.JohnsonNyquistNoise
• Some functions in UliEngineering.SignalProcessing.Simulation
• Some functions in UliEngineering.SignalProcessing.Selection

After that you can use UliEngineering from any Python3 instance. Example:

$ python3
Python 3.5.2 (default, Nov 17 2016, 17:05:23) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from UliEngineering.EngineerIO import *
>>> format_value(0.015, "V")
'15.0 mV'

Getting started

On my blog, I've posted several easy-to-use examples on how to solve real-world problems using UliEngineering:

• Normalizing electronics engineering value notations using Python
• Finding the nearest E96 resistor value in Python
• Easy zero crossing detection in Python using UliEngineering
• Easily generate sine/cosine wave test data in Python using UliEngineering
• Easily generate square/triangle/sawtooth/inverse sawtooth waveform data in Python using UliEngineering
• Easily compute & visualize FFTs in Python using UliEngineering
• Computing resistor power dissipation in Python using UliEngineering
• Computing crystal load capacitance using Python & UliEngineering
• How to convert Celsius/Fahrenheit/Kelvin temperatures in Python using UliEngineering
• How to get unit/resolution of NumPy np.timedelta64 object
• How to get unit/resolution of NumPy np.datetime64 object
• How to iterate all days of year using Python
• How to get number of days in month in Python
• How to compute candelas from lumens by apex angle
• How to compute resistor voltage divider ratio using Python
• How to generate datetime for every hour on a given day in Python
• How to generate datetime for every minute on a given day in Python
• How to generate datetime for every second on a given day in Python
• How to compute MRI Larmor frequency for a given magnetic field using Pythonf
• How to compute voltage divider output voltage using Python
• How to format axis as dB (decibel) using matplotlib
• How to compute Buck/Boost/LDO output voltage by feedback resistors using Python
• How to compute the weight of a titanium or stainless steel rod using UliEngineering in Python
• How to compute non-inverting OpAmp amplifier gain using UliEngineering in Python
• How to generate filename with date & time in Python

Testing

In order to run the unit tests, first install tox:

pip install --user tox

and then just run it in the root directory of the cloned repository

tox