Parker Dillmann | May 12, 2017 | 501J DC Voltage Standard, DMM7510, In-Store Analytics, Internet of Useful Things, Keithley, MacroFab, macrofab engineering podcast, MEP, Podcast, SiFive, Space invaders, Tektronics

Podcast

MEP EP#67: Don’t get Analyticized

Podcast Notes

Parker
- Space Echo Facebook live Calibration. Tuesday at 4PM CST.
- Particle Photon IoT work.
- There needs to be an IoT for Hardware Engineers. If anyone has suggestions, send us a tip!
Stephen
- Pat Hensley who is the Mainstream Sales Manager over at Tektronics/Keithley and a listener of the podcast has let us borrow a Keithley DMM7510 multimeter.
- DMM7510 multimeter Specs:
  - Voltage Sensitivity: 7.5 digit sampling (10nV min)
  - Current Sensitivity: 1pA
  - Resistance sensitivity: 0.1u OHM
  - 14 ppm 1-year DC volt accuracy
  - 60 ppm 1-year DC current acccuracy
  - 24 ppm 1-year resistance accuracy
  - Calibration of the Electronic Development Corporation (now Krohn-Hite)
- 501J DC voltage standard:
  - Repair: Bought the unit dead and found two bad power supply regulators
  - Raytheon RC4194TK
  - ST Micro L7806C-T
Rapid Fire Opinion (RFO)
- Reverse Engineering Space Invaders Sound Chip – HackADay
  - Ken Shirriff
  - 76477 Complex Sound Generation chip
- SiFive raises $8.5 million for licensable custom microprocessors – venturebeat
  - RISC-V, a free and open instruction set architecture for modern microprocessors.
  - They monetize it through customization and support, much like Linux companies do with their open source operating systems.
  - HiFive1 development board sells for $59. Arduino format.
- Crashed Advertising sign reveals facial recognition command line logs – Twitter
  - Anonymous Video Analytics (AVA) by Karios.
  - In-Store Analytics, Live Heat Map of your store, VIP treatment for customers Intelligent Digital Signag.
  - Analyze metrics like gender, age or mood to target ads relevant to specific demographics. Change displays in real time to fit different customers’ needs.

Figure 1: Stephen working on his Voltage Standard with the DMM7510.

Figure 2: The transistor heatsink “hack” Stephen did.

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

About The Hosts

Parker Dillmann is MacroFab's Co-Founder, and Lead ECE with backgrounds in Embedded System Design, and Digital Signal Processing. He got his start in 2005 by hacking Nintendo consoles into portable gaming units. He also runs the blog, longhornengineer.com, where he posts his personal projects, technical guides, and appnotes about board layout design and components. Parker graduated with a BS in Electrical and Computer Engineering from the University of Texas.

Stephen Kraig is the Quality Manager at MacroFab, he works closely with the VP of Operations to continuously optimize our manufacturing processes. Stephen began 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.