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February 18, 2021, Episode #264
Tesla Recalls Cars With EMMC Failures, Calls Part A ‘Wear Item’
- Wear items on cars are designed to be “easily” serviced
- Is this just a cop out to avoid warranty issues and recall problems?
- If the EMMC is a wear item it should have a recommended service interval but it does not
- Derek Fronek from the slack channel:
- “So it finally happened…. after all these years of using SD cards on pi’s ive never had an SD card fail on me, until today…….”
- Wear items on cars are designed to be “easily” serviced
Resealing 12oz cans?
- 3D printed a sealing cap that screws onto a Yeti can insulator
- Testing it out over the weekend
- The chip shortages we have been talking about? GM expects it to get worse.
- Ford cutting Pick Up Truck production!
- Shortage could lower Ford’s earnings in 2021 by $2.5 Billion
- Suppliers are saying by mid June they will be caught up
PinoTaur REV 4 Prototype ordered
- Relay part number: G2RG-2A-X DC12
- Changing current sense IC to a higher rated one for the 50V DC line
- Added a second RGB channel for the serial LEDs
Digi-Key Elimination Search
- Talked about this on Episode 260: A Couple Months Ago
- Use a ~ in the “search within results” box to eliminate whatever you like from your search
Coolio Opamp
- TLV915x
- $0.512 in 1k qty from TI
- 125uV offset
- 16V
- Rail to rail
Parallax Prop 2 exists!
- Parker has a development board now
About the Hosts

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 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

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Real Engineering for a Real Engineer
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NuFuel and Gas Classic
Parker and Stephen discover new EDA tool features in both Eagle and Diptrace! The Auto industry is now waking up to a new tech order of the world.

Avoid The Extremes
Controlling PCB costs of your next product is all about avoiding the extremes of the manufacturing specifications. Don't let your EDA tool fool you!

The Digital Mattress
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Illuminati Moment
Is there a statue of limitations on open source hardware projects? This week, Stephen and Parker dive into what open source means for both of them.