tahull

Recent Projects

Traffic Light Fsm

Intro Traffic light simulation is a classic text book problem used to demonstrate a finite state machine. A FSM is a system with finite states, finite inputs, finite outputs. It has a known number of states, inputs, and outputs. You can join team Mealy or team Moore, sometimes it matter, either way everybody wins, and you can switch teams in most cases. The state machine implementation in this project is an example of a Moore machine. Output... Read the full post! »

Enc28j60 Blinky

Intro There’s a few IP stacks available from Microchip, Microchip Libraries for Applications (MLA), or the TCP/IP Lite Stack from AN1921 download or extract a newer version from the Microchip Code Configurator (MCC). There’s also plenty of other TCP/IP implementation floating around the Microchip forum or other project sites, or the other option of make your own. The downloadable MLA doesn’t list 8-bit PICs as being supported, also it list “... Read the full post! »

Tcp Blinky Client

Intro A simple client to test TCP communication to an Ethernet PIC project. Read the full post! »

Spinning Pov Display

Intro These things are fun to put together and interesting how a single line of LEDs moving fast enough, can trick our eyes into seeing more. This is the effect of Persistence Of Vision. Read the full post! »

All Posts

• Acf Animated August 10, 2020

  Jupyter Notebook DSP
  Python ACF Autocorrelation Guitar Tuner
  Autocorrelation Autocorrelation is a measure of a signal’s similarity to itself at lagged points. By shifting a copy of the source signal over itself we can see the measure of similarity at periodic points. Autocorrelation can be used as a pitch detection algorithm (PDA). Pitch is another term for the frequency of a sound wave. A significant peak in the Autocorrelation result can indicate the f... Read the full post! »

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• Import Third Party Part Into Ltspice May 26, 2020

  Tips And Tricks
  LTspice
  LTspice is FREE, it’s good too. SPICE netlist is script-like commands for circuit simulations. With LTspice the circuit can be setup graphically with the SPICE netlist living in the background. Read the full post! »

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• Python Virtualenv Setup August 10, 2019

  Setup Guide
  Virtualenv Linux Python Ubuntu 18.04
  Python by itself is awesome and packages add a lot of functionality. Installing all those packages makes a mess and some of them don’t play well with others, or maybe you need a certain version of a package for a project. Isolating is the way to go, virtualenv is one way to manage that. Read the full post! »

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• Soundcard Oscilliscope In Wine July 5, 2019

  Linux Sucks
  Wine Linux Sound Card Oscilloscope Ubuntu 18.04
  A sound card oscilloscope application is useful for viewing and analyzing low frequency signals (20Hz - 20KHz). I wanted to do some work with audio signals, and redo and improve a college project of mine. There’s probably a native Linux sound card oscilloscope application that would do everything I wanted, and bonus points if it works out-of-the-box. Linux as a desktop sucks, it always seems to... Read the full post! »

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• Setup A Wineprefix On Ubuntu 18.04 June 24, 2019

  Setup Guide
  Wine Wineprefix Ubuntu 18.04 Linux
  Wine is great, fill a glass, sit back, and find another reason to not boot into Windows. Wine lets us run built-for-windows applications on Linux. Wineprefix’s lets us setup different Wine configurations, do you need 32 or 64-bit Wine, or specific runtime libraries, or do you just want to separate Windows applications. There’s dozens of different ways to get to the same goal, and this applies t... Read the full post! »

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