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January 23, 2019, Episode #156
- Parker
- Wagon Chime Module
- Installed back on Wagon and It works!
- USB Type-C Article Update
- Have the Type-C to FT230X complete
- Design Block for Eagle
- ESD protection on the CC Pins?
- IP4234CZ6,125 USB ESD protection
- Wagon Chime Module
- Stephen
- Found the old ribbon mic from MEP EP#110: Dangling Transformers
- Going look at doing a quick spin of a stacked PCB based version instead of the 3d printed chassis
- Boards can screw together to clamp to the ribbon itself by having a gold pad on the PCB
- Need a way to do fine tune adjustments on the ribbon tension
- Embedded transformer
- 3D printed enclosure – Fusion 360 to 3d printing?
- PCM2912A
- Brian Benchoff’s Oreo Stackup PCB
- Found the old ribbon mic from MEP EP#110: Dangling Transformers
- R.F.O.
- MIDI Association Announces MIDI 2.0 Prototyping
- Will be announced at NAMM 2019 (Jan 24-27th)
- In prototyping phase
- Fully back compatible with 1.0
- Solder Surface Tension and Why You Should Care
- The Current Source aka Derek has a released a really cool video on surface tension and how it relates to PCB Assembly
- Derek was on MEP EP#103
- A Choice of Grippers Helps Dual-Arm Robot Pick Up Objects Faster Than Ever
- Dex-Net 4.0
- Multi tool picking robot
- Successfully grasp 95 percent of unseen objects at a rate of 300 per hour
- Humans do double that at near 100% success rate
- Learns how to grip things by simulation
- The physics it uses is slightly randomized to “cover up” sensor defects
- The Basics of USB Battery Charging: A Survival Guide
- Maxim app note on Lithium Battery charging over USB
- A bit dated as it only covers BC 1.1 but still applicable to USB 2.0 devices
- New Mouser interface?
- Part Searching just got more time consuming?
- MIDI Association Announces MIDI 2.0 Prototyping
Visit our Public Slack Channel and join the conversation in between episodes!

Schematic for the USB Type-C interface for USB 2.0 using a FT230X as a USB to UART bridge.

Layout for the USB Type-C interface for USB 2.0 using a FT230X as a USB to UART bridge.
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!
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