Signal switching for maximum offness

Circuit Break Podcast #351

Signal Switching for Maximum Offness

Related Topics
From Zero to Hero in Python

Python software language, more and more electrical engineering jobs are requiring this as a skill set but is it just snake oil?

Estimating Effort

Why is estimating a projects completion time feel like it takes more work then the actual project? Estimating Project Time, the quest of management.

Necrobiotic Synthesizers

Our Spider-sense is tingling... OH that is actually a man-made zombie spider crawling up my leg. Who thought that would be a good idea? WHO!?!

Other Resources

Circuit Break Podcast
Blog
eBooks & Guides
Webinars
Videos
Case Studies
Tour MacroFab's ITAR-Compliant Facility

November 4, 2022, Episode #351

Hail to the signal switcher! On this episode, Parker wraps up his prep work for the Extra-Life Charity stream and Stephen discusses switching signals.

Python Demo for Extra Life API

  • Stream Date: November 5th, 2022
  • Python to OBS functioning!
  • Websockets. What are they?
    • HTTP is unidirectional where the client sends the request and the server sends the response
    • Websocket data is continuously pushed/transmitted into the same connection
  • OBS has a built in local server that you can establish a websocket with another application
  • Python module obswebsocket
    • Provides a wrapper for all the OBS websocket functions
    • Can basically control anything in OBS it seems
    • Documentation is a bit lacking and module is out of date
  • Build animations and transitions in OBS and modify them with the python connection
  • Building a donation progress tracker? 

Signal switching tips

  • Maneuvering signals around your design
  • Methods of switching on and off portions of your circuit
    • Series
    • Shunt
    • Series-shunt
  • Relays
  • DG series of analog switches
    • Virtually every configuration
    • single, dual, quad SPSTs and SPDTs, 4:1 and 8:1 multiplexers
    • Many have separate control and signal voltage inputs

Estimating project time

  • Follow up from slack
  • Josh Pieper – Doomcheck
  • Takes in a text file and uses probability distribution to estimate timing for projects

About the Hosts

Parker dillmann
  Parker Dillmann

Parker is an Electrical Engineer with backgrounds in Embedded System Design and Digital Signal Processing. He got his start in 2005 by hacking Nintendo consoles into portable gaming units. The following year he designed and produced an Atari 2600 video mod to allow the Atari to display a crisp, RF fuzz free picture on newer TVs. Over a thousand Atari video mods where produced by Parker from 2006 to 2011 and the mod is still made by other enthusiasts in the Atari community.

In 2006, Parker enrolled at The University of Texas at Austin as a Petroleum Engineer. After realizing electronics was his passion he switched majors in 2007 to Electrical and Computer Engineering. Following his previous background in making the Atari 2600 video mod, Parker decided to take more board layout classes and circuit design classes. Other areas of study include robotics, microcontroller theory and design, FPGA development with VHDL and Verilog, and image and signal processing with DSPs. In 2010, Parker won a Ti sponsored Launchpad programming and design contest that was held by the IEEE CS chapter at the University. Parker graduated with a BS in Electrical and Computer Engineering in the Spring of 2012.

In the Summer of 2012, Parker was hired on as an Electrical Engineer at Dynamic Perception to design and prototype new electronic products. Here, Parker learned about full product development cycles and honed his board layout skills. Seeing the difficulties in managing operations and FCC/CE compliance testing, Parker thought there had to be a better way for small electronic companies to get their product out in customer's hands.

Parker also runs the blog, longhornengineer.com, where he posts his personal projects, technical guides, and appnotes about board layout design and components.

Stephen Kraig
  Stephen Kraig

Stephen Kraig began his electronics career by building musical oriented circuits in 2003. Stephen is an avid guitar player and, in his down time, manufactures audio electronics including guitar amplifiers, pedals, and pro audio gear. Stephen graduated with a BS in Electrical Engineering from Texas A&M University.

Special thanks to whixr over at Tymkrs for the intro and outro!

Related Podcasts

Real engineering for a real engineer

Real Engineering for a Real Engineer

A decade after graduating college, Stephen finally did a differential equation for his job! That is some real engineering I tell you what.

Let the robots do it

Let The Robots Do It

Is grinding out math problems just busy work? Is the current state of Math class curriculum hampering the real life deployment of engineering skills?

Necrobiotic synthesizers

Necrobiotic Synthesizers

Our Spider-sense is tingling... OH that is actually a man-made zombie spider crawling up my leg. Who thought that would be a good idea? WHO!?!

Zero to hero python

From Zero to Hero in Python

Python software language, more and more electrical engineering jobs are requiring this as a skill set but is it just snake oil?

Estimating effort

Estimating Effort

Why is estimating a projects completion time feel like it takes more work then the actual project? Estimating Project Time, the quest of management.

MEP FI 319

Work to Automate the Work

On this episode, Parker discusses his current adventure in testing and qualifying ratcheting wrenches and Stephen finally learns the magic of python!