The Amp Hour

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Natural Sciences
**The Amp Hour**

The Amp Hour is a weekly conversation about electronics and the people who design them.

Latest Episodes:

An Interview with Sam Stranks Mar 10, 2019

Show notes

Welcome Dr Sam Stranks, entrepreneur and professor at Cambridge University!

Perovskites
- 0h 0m 49s
The family is based on the crystal structure
- 0h 1m 15s
Have been worked on for 2 to 3 decades
- 0h 1m 44s
Only since 2009 have they been used as a solar cell
- 0h 2m 36s
Sam's background is physicist
- 0h 4m 46s
Raised in Australia
- 0h 6m 23s
Broad undergrad background
- 0h 7m 0s
Bridged chemistry and physics in Master's program
- 0h 7m 22s
Worked on removing white wine proteins
- 0h 7m 32s
The mechanism is similar to how alzheimers blobs together
- 0h 8m 50s
2007
- 0h 10m 24s
He got a Rhodes scholarship which meant he ended up going to Cambridge University.
- 0h 10m 29s
Research included carbon nanotubes
- 0h 11m 7s
Wrapping polymes around then
- 0h 11m 21s
Popularity has been dropping
- 0h 11m 47s
Fullerenes, Graphene both won Nobel prize.
- 0h 12m 2s
Producing nanotubes is difficult
- 0h 12m 21s
Dave made a video about a bunkum Kickstarter doing Graphene heaters
- 0h 12m 34s
Specifically separating out metallic and semiconductor types
- 0h 12m 47s
Finished PhD 2012
- 0h 15m 5s
Joined Henry Snaith's group doing dye sensitized solar cells
- 0h 15m 21s
Reemergence of perovskites
- 0h 16m 21s
The initial focus was on a dye sensitive cell made out of perovskite
- 0h 18m 25s
Early efficiency was 3%
- 0h 18m 56s
The research is done in a place that looks more like a chemistry lab than a semi lab
- 0h 22m 23s
Solar simulator to replicate the sun
- 0h 23m 40s
How are perovskites different from solar cells?
- 0h 25m 34s
Silicon has an indirect bandgap
- 0h 26m 49s
Multijunctions cells (the kind on satellites) have different absorbers (different colors)
- 0h 27m 52s
Record silicon efficiency is 27%
- 0h 28m 21s
Full panel is about 20%
- 0h 28m 39s
Perovskite is at 23%
- 0h 29m 5s
Triple junction is 39%
- 0h 29m 27s
Videos from past guests Sam Zeloof and Jeri Ellsworth
- 0h 30m 53s
Printed solar cells
- 0h 32m 4s
ABX3
- 0h 34m 4s
Thickness only needs to be half a micron
- 0h 34m 41s
The name 'perovskite solar cell' is derived from the ABX3 crystal structure of the absorber materials, which is referred to as perovskite structure. The most commonly studied perovskite absorber is methylammonium lead trihalide (CH3NH3PbX3, where X is a halogen atom such as iodine, bromine or chlorine), with an optical bandgap between 1.5 and 2.3 eV depending on halide content. Formamidinum lead trihalide (H2NCHNH2PbX3)
- 0h 35m 56s
Currently using Indium for the contact, but it's hard to get, running out
- 0h 36m 13s
Talking through the stack
- 0h 37m 12s
Bottom electrode is Indium Tin oxide
- 0h 37m 37s
Then a layer of perovskite
- 0h 37m 53s
Top layer is organic
- 0h 38m 37s
Illumnate through the glass,
- 0h 39m 33s
InSnOx is transparent up to UV
- 0h 41m 14s
Perovskite absorbs 200-800
- 0h 41m 28s
Using lasers to test with pulses
- 0h 44m 57s
Pulses for a 1 ps
- 0h 45m 7s
Monitor how they recombine and lose energy
- 0h 45m 38s
What causes a defect?
- 0h 46m 23s
What actually makes electrons mobile in the ABX3 structure?
- 0h 49m 15s
Structure is mostly from the B and the X (lead and iodide)
- 0h 49m 35s
Covalently bonding vs ionic bonding
- 0h 52m 35s
Other applications being targeted
- 0h 56m 47s
Light emission (LEDs)
- 0h 56m 57s
Also using for lasing materials (LASERs)
- 0h 59m 41s
Want to make an electrically pumped laser
- 0h 59m 55s
Have been some changes in the A site that stabilize ion migration
- 1h 1m 55s
Sam is a founder of Swift Solar
- 1h 2m 29s
The 6 founders had spent time together in Henry Snaith's group
- 1h 2m 43s
Focusing on making tandem cells
- 1h 3m 20s
Making a solar sheet
- 1h 4m 13s
More solar cells in a smaller area
- 1h 4m 59s
Payback periods
- 1h 5m 25s
Why hasn't this started on the production side yet?
- 1h 6m 18s
Solar is coming down to 20 cent per watt
- 1h 6m 43s
Install costs are still $1 per watt
- 1h 6m 56s
The lightweight aspects lowers the cost of installation
- 1h 7m 20s
Sam did a TED talk
- 1h 8m 13s
Integrated photovoltaics
- 1h 8m 25s
Group web page
- 1h 9m 27s
Want to learn more about bandgaps? Check out pveducation.org
- 1h 9m 33s
Scientific American wrote an article about The Perovskite Boom last year
- 1h 9m 54s
Sam's lab is taking new students! Reach him via his web page or reach out to him on Twitter (@SamStranks)
- 1h 11m 59s

Photo: Ryan Lash / TED

Check The Dummy Box Mar 04, 2019

Show notes

KiCon talks have been announced! The conference isn't just for people using KiCad
Electronex shares space with a PCB conference
Dave went to a meetup last night with employees of a former startup.
Dave is considering going to HW startup conference in Queensland
uSupply chugging along
Finding bugs in the GCC compiler
Custom planar transformer will be lower cost, lower profile
Billing for hours
Attaining specs
Joulescope by Matt Liberty is similar to the uCurrent. He was just on Embedded.fm discussing his new product.
ST(? NXP?) board for doing measurements
Qoitech Otii
nRF91
Amazon and big players working with IoT. Think this is the show referenced.
FreeRTOS with AWS will be supporting early RISC-V chips
MongooseOS
Past shows with Mike Harrison
- 135
- 224
- 294
- 412
Apply to the Consultant Forum
Latchup is a conference for open silicon happening in Portland May 4-5
Kickstarter and China
Former guest Robert Feranec talks about how to make cheaper PCBs
Tympan is an open source hearing aid and will be launching a campaign for their rev D version soon
Grace Hopper discusses nanoseconds

An Interview with Adam McCombs Feb 25, 2019

Show notes

Welcome, Adam McCombs! Check out his talk at Supercon and the associated article on Hackaday.com

Scanning electron microscope
- 0h 0m 45s
2017 got the first microscope
- 0h 1m 10s
Dan Burrard STM microscopes
- 0h 1m 43s
@Nanographs
- 0h 2m 28s
Vacuum is shockingly challenging
- 0h 2m 46s
Air stops behaving like a liquid
- 0h 3m 57s
Turbomolecular pumps
- 0h 4m 16s
14.4 atm
- 0h 5m 24s
turbo pump looks like a turbine
- 0h 6m 41s
Roughing pump can get 10^-3 torr
- 0h 8m 2s
Thermionic emission gun
- 0h 8m 54s
Tungsten filament
- 0h 9m 3s
Magnetic lenses
- 0h 9m 52s
Electron detector
- 0h 11m 0s
Uses 400V to attract electrons towards the phospher
- 0h 11m 13s
Older systems needed higher energy electrons
- 0h 12m 13s
You can melt things in an electron microscope
- 0h 13m 26s
Electron-beam welder
- 0h 14m 14s
Cutting edge is wet samples
- 0h 15m 18s
Most things in SEMs are dead
- 0h 15m 28s
Newest semiconductors is 7-14 nm
- 0h 17m 33s
Optical vs SEM with Depth of Focus (DOF)
- 0h 18m 50s
Preparing the sample generally has to be conductive
- 0h 19m 41s
Non-conductive things are usually coated in gold
- 0h 20m 26s
Gold coated cheerio
- 0h 21m 24s
Thickness of the sputter depends on needs: thicker is less coating
- 0h 22m 38s
Angstroms vs nanometers
- 0h 23m 37s
SEM vs STM vs TEM
- 0h 27m 28s
SEM images the surface of things
- 0h 27m 39s
STM transmits electrons through the sample
- 0h 27m 49s
imaging bonds requires an atomically thin sample
- 0h 28m 51s
can image magnetic fields with a TEM
- 0h 31m 30s
can to tomography if you image things in sequence
- 0h 31m 55s
Learned about the brain project from Allen Institute
- 0h 33m 51s
Scanning tunneling electron microscope (stm)
- 0h 34m 49s
Doesn't operate at vacuum
- 0h 35m 6s
"Coarse approach done, now to bring it in to quantum tunneling range to start scanning. I always love when we can leverage quantum effects using tools you can just build out of parts from the hardware store, eBay, and digikey."
- 0h 36m 22s
SEM is for surface science
- 0h 37m 28s
TEM is used for things like asbestos
- 0h 38m 5s
Also used for histology (telling if a sample has a virus)
- 0h 38m 57s
STMs are more specialized - atomic resolution of the surface of a sample
- 0h 40m 27s
Fundamental material research
- 0h 40m 47s
IBM video "The boy and his atom"
- 0h 41m 8s
Multiframes is possible but resolution goes down
- 0h 41m 46s
Similar to a camera with different exposure
- 0h 41m 58s
Ben Krasnow videos
- 0h 44m 6s
First scope was "some assembly required"
- 0h 45m 13s
Most o-rings are viton - silicon based
- 0h 46m 8s
ISI super 3A
- 0h 46m 42s
Jeol 35C
- 0h 47m 4s
VacuumHackers.com
- 0h 49m 9s
Digital capture isn't normally included
- 0h 51m 47s
Polaroid film holder to capature images
- 0h 52m 53s
Now doing this for a business as well
- 0h 54m 11s
Repairs, consulting, moving
- 0h 55m 4s
Might be recreating old parts
- 0h 55m 27s
Might be manufacturing heavy and creating parts that enables new pieces
- 0h 55m 36s
The materials of these hasn't changed much over the years
- 0h 57m 20s
Column is usually made out of iron
- 0h 59m 40s
Electronics usually aren't the problem
- 1h 0m 36s
Philips manuals are really detailed
- 1h 2m 9s
Manuals for older things are non existent
- 1h 2m 21s
Example of a common failure: beam jumping around
- 1h 3m 1s
RAM failure on a jeol 1200
- 1h 4m 48s
Working with high voltage
- 1h 6m 1s
High voltage tank
- 1h 7m 53s
Putting the electronics into oil
- 1h 8m 34s
xray safety is a big concern in TEMs with 120kV+ electrons
- 1h 9m 39s
Multiple geiger counters (thin window)
- 1h 10m 11s
Follow along on @nanographs
- 1h 14m 31s
VacuumHackers.com
- 1h 14m 57s
nwnlabs.org
- 1h 16m 20s
(Not mentioned during the show) Adam will be at M&M conference in Portland this year

Shahriar Discusses 5G Feb 18, 2019

Show notes

Welcome back, Shahriar Shahramian from The Signal Path!

Shahriar has been a guest on the show twice before
- Episode 228
- We posted the audio from Dave's in-person interview with Shahriar
Bell Labs bought by Nokia
Shahriar works at the Murray Hill campus
He is the head of the mmwave ASIC research group
Research group only has 8 people
Have multiple designs happening at once
Task switching between optical and RF chips
Software stuff at Bell Labs research is wide ranging
Moore's law for RF
Going beyond the Marconi era: Doing phased array transmissions
Cramming more bits per hertz
Going from 4G to 5G requires going to higher frequencies
Transmitting GHz frequencies in all directions would blow the link budget
Would require Phased Arrays in order to transmit only power to reach individual devices
256 transmitter and 128 receiver antennas in order to beamform
Beamforming in 5G will require line of sight
At 90 GHz (5G frequencies), the signal would not be able to pass through modern windows (because of the coating on the glass)
5G will solve the latency issues that plagues 4G LTE
Link margin is how much above the absolute noise of the system are you
Types of modulation
- OFDM
- QAM constellations
Encoding based on the momentum of the polarization of the signal
Common mode modulation creating phantom channels
"The Fact That It Works Is Absolute Magic"
Bose Einstein Condensate Experiment
The dynamic range of peoples' perspectives
"If you don't teach people how to sort through information during the information age, then you have no idea how the world is going to turn out"
How to initiate a phased array connection
Why do you need so many antenna elements in receive mode?
Active denial system tested by the military
Shahriar bought a SiBEAM (now "Silicon Image") 60 GHz phased array system that creates a wireless HDMI link off of eBay

An Interview with Charles Alexanian Feb 11, 2019

Show notes

Welcome Charles Alexanian of Alexttronics!

Headquartered in Fresno
- 0h 0m 36s
History
- 0h 1m 7s
Family business
- 0h 1m 20s
Father was a QC engineer
- 0h 1m 25s
Night scope
- 0h 1m 44stel
Irrigation work in Fresno
- 0h 2m 21s
Assembling clock dials as a 4 year old
- 0h 4m 26s
OEM mfg of timer and controls
- 0h 5m 0s
Load sharing of pumps
- 0h 5m 51s
Family business - everyone helped
- 0h 8m 22s
Reading schematics from an early age
- 0h 12m 35s
Helped out on product in 92
- 0h 15m 34s
Telrite in Fremont for MFG
- 0h 16m 45s
Fear and doubt are a factor in any business
- 0h 17m 36s
Started looking outside the business in case it wasn't viable
- 0h 18m 24s
Pedals and amps
- 0h 18m 59s
Opened a repair business for amps and pedals
- 0h 19m 34s
Manufacturing replacement parts for amps
- 0h 19m 50s
Tube amps
- 0h 21m 23s
Screen resistor
- 0h 26m 0s
Got in contact with studios in town
- 0h 26m 49s
uBid
- 0h 27m 31s
Thomas register
- 0h 28m 4s
War era catalog
- 0h 28m 44s
Getting parts was always an issue
- 0h 30m 10s
Led in two directions
- 0h 30m 15s
Speaker manufacturing was bad
- 0h 30m 25s
Don Schmidt sourcing parts
- 0h 30m 53s
Sourcing 10" speakers
- 0h 31m 32s
Got burned on sourcing into the market
- 0h 32m 25s
Closed up the repair shop
- 0h 32m 46s
Kept a couple customers at studios
- 0h 32m 58s
Went to school for electrical contracting
- 0h 33m 42s
Getting into tubes
- 0h 35m 6s
Bought mostly from New Sensor
- 0h 36m 6s
Ronnie Elsbury - MU incorporated
- 0h 37m 0s
What is a vacuum tube
- 0h 38m 22s
Edison effect
- 0h 39m 32s
de Forest father of the vacuum tube
- 0h 39m 57s
Added the grid
- 0h 40m 19s
Certain applications still need tubes
- 0h 42m 5s
Radar and microwave requires tubes because of power levels
- 0h 43m 5s
Traveling wave tubes
- 0h 43m 33s
Varian brothers
- 0h 43m 57s
Klystron
- 0h 44m 7s
Ion implantation uses tubes
- 0h 44m 40s
Ronnie visits Charles
- 0h 45m 40s
Ronnie factory does last time buy
- 0h 48m 56s
Starting making tubes
- 0h 50m 11s
Glasswork is very difficult
- 0h 50m 55s
Charles' talk at Supercon
- 0h 51m 4s
Charles' original article on Hackday about tube mfg
- 0h 52m 39s
BA ionization gauge
- 0h 52m 53s
Most basic form of tube used for measurement of vacuum
- 0h 53m 0s
Philips glassworks videos from the 30s
- 0h 55m 15s
Mullard glass video from the 50s-60s
- 0h 55m 22s
Videos from bell labs
- 0h 55m 37s
Glass slinger on youtubes
- 0h 55m 53s
Adam Carolla podcasts
- 0h 58m 8s
Fitting out a studio
- 0h 58m 26s
Started working in exchange for hanging around racing
- 0h 59m 23s
Carolla digital
- 0h 59m 45s
Sourcing parts as a small manufacturer
- 1h 2m 9s
Spall - the surface falls off
- 1h 4m 4s
Ceramic caps
- 1h 5m 49s
"Farmers are not a trusting group"
- 1h 8m 16s
Small growers are pushing for monitoring in agtech
- 1h 11m 48s
MQTT
- 1h 14m 10s
Highwire
- 1h 21m 47s
brokenspeaker9@gmail.com
- 1h 25m 52s
NeoDen4
- 1h 27m 36s

Setting Fire To The Tracks Feb 04, 2019

Show notes

Chicago was so cold (the day we recorded this episode), the train company set tracks on fire to defrost them.
Chris asked about dev kits/platforms people are interested in
Migen for generating FPGA code
CH554
Paduk - 3 cent micro
ST Micro family Dave is using doesn't have eeprom
Battery back SRAM
Wear leveling
4 cent external eeprom
Higher setup cost
NeoDen4 video from NeoDen USA
NeoDen7 with Yamaha feeders
Hand assembly
Sipeed M1 board has dual RISCV 64 cores for AI applications
Chris started the FastAI course after reading Yuval Noah Harari books over the holidays.
ESP32 has a new camera board
OpenCV
Hot dog/ not hot dog
How much power a Raspberry Pi takes
Hackaday just wrapped up the "Circuit Sculpture" contest
Chris first saw this from Mohit Bhoite, one of the Particle EEs
Dave had a patent chat with his brother in law (Phil) over the holidays
How to become an engineer
ZGlue is not a chip printer...but it could be an interesting way to piece together chips
A history of chipmaking in Japan
PCB Checklist
Former guest of the show, Bil Herd did some high speed testing for Hackaday

Image credit: ABC News on Twitter

An Interview with Maarten Engelen Jan 28, 2019

Show notes

Welcome Maarten Engelen, founder and CTO/MD of Hiber!

(Not discussed, but relevant: an article about the launch late last year)

Chris met Joris last year while in Amsterdam, who now works at Hiber and introduced him to Maarten
- 0h 0m 46s
Maarten had no previous experience in satellite tech
- 0h 0m 55s
Space industry in the Netherlands
- 0h 1m 8s
Not just Amsterdam
- 0h 8m 34s
Delft University
- 0h 8m 55s
ESTEC - ESA research center in Noordwijk
- 0h 9m 13s
Iridium satellite
- 0h 14m 2s
Windows update over satellite
- 0h 14m 8s
Lifetime of orbit is limited
- 0h 16m 27s
Drag on the satellites
- 0h 17m 24s
Why not do a further out orbit?
- 0h 18m 24s
Benefits only add up over large distances
- 0h 21m 26s
Doesn't have a huge effect on the antenna
- 0h 21m 52s
Is the antenna on the satellite directional?
- 0h 23m 27s
Helical antenna
- 0h 23m 41s
Reaction wheels
- 0h 24m 44s
ADCS - Attitude Determination and Control System
- 0h 24m 47s
Sun sensors
- 0h 26m 57s
Magnetic sensors
- 0h 27m 11s
Star tracker
- 0h 27m 16s
Talking about the module
- 0h 33m 29s
Running at 400MHz
- 0h 33m 42s
Lower bitrate
- 0h 34m 10s
Currently once per day, maybe once per hour in the next year
- 0h 34m 55s
Licensed band
- 0h 35m 43s
MSS band (mobile satellite services)
- 0h 35m 48s
ITU is part of the UN
- 0h 35m 56s
Coordination process is the same
- 0h 36m 39s
There's no iSM band for space
- 0h 36m 58s
Each RF map was developed separately
- 0h 39m 14s
What the module looks like
- 0h 41m 16s
Downlink is used scheduling right now
- 0h 43m 17s
They're SDRs, so can get new firmware and open up new bands
- 0h 43m 48s
Sleep vs transmit currents
- 0h 45m 26s
100 nA deep sleep
- 0h 45m 32s
3W peak power
- 0h 45m 54s
Conservify
- 0h 47m 25s
Use cases
- 0h 48m 4s
- IT and M2M is very broad
  - 0h 48m 14s
- Logistics
  - 0h 48m 26s
- Smart Ag
  - 0h 48m 33s
This small country feeds the world
- 0h 49m 46s
Targeting industries that save money
- 0h 50m 58s
Costs for the service - $1 / month
- 0h 52m 22s
or $6 / year
- 0h 52m 40s
Modem is 40 euro right now
- 0h 53m 8s
Currently has GPS capabilities
- 0h 58m 23s
Certification is done for you
- 1h 0m 44s
FCC exception for whitelabel goods (ovens, dishwashers)
- 1h 4m 7s
Found via @talldarknweirdo and @brouhaha on Twitter
- 1h 5m 22s
To learn more, go to Hiber.global or follow @HiberGlobal on twitter or Facebook
- 1h 5m 46s

Image Credit: @awscloud_jp

An Interview with Dean Pick Jan 21, 2019

Show notes

Welcome Dean Pick, founder of Biperformance Development, Kinitics Automation and ShiftFX!

Linear actuator tech
- 0h 1m 22s
Hydrolic and pneumatics actuators
- 0h 1m 32s
Voice coils and piezo actuators
- 0h 1m 57s
Electric screw linear actuators
- 0h 4m 6s
Shape memory alloys
- 0h 5m 34s
Nickel and titanium wires
- 0h 5m 46s
Hysteresis
- 0h 8m 19s
Material creates a crystal lattice
- 0h 8m 27s
Current not related to the power output
- 0h 9m 52s
Don't actually sense temperature
- 0h 11m 27s
Can have a very small cross section
- 0h 17m 26s
Introduced by past guest of The Amp Hour John Davis
- 0h 22m 27s
Process of getting to Kinitics
- 0h 24m 23s
Biperformance Development Corporation
- 0h 24m 34s
Pushing or pulling a lever to engage a clutch
- 0h 25m 30s
How a clutch works
- 0h 26m 26s
Transfer function for delivering torque
- 0h 31m 43s
ShiftFX
- 0h 33m 54s
6 axis IMU
- 0h 35m 47s
CAN bus devices know about bike positioning
- 0h 35m 56s
This technology makes riding bikes more accessiblle
- 0h 38m 38s
eBikes are another way more people will start riding motorcycles.
- 0h 40m 59s
started bikes in 2002
- 0h 41m 32s
Formula SAE
- 0h 41m 42s
Starting from bare metal
- 0h 43m 21s
Have an RTOS for board
- 0h 43m 28s
8 and 16 bit processors
- 0h 46m 44s
Running physics engines
- 0h 47m 49s
CAN bus protocols
- 0h 50m 36s
We talked about can bus previously with Earl from Macchina
- 0h 51m 24s
Another aspect of Biperformance.ca was consulting on biomass generation projects
- 0h 56m 34s
Powerboilers
- 0h 57m 17s
Fluidized bed
- 0h 57m 50s
Giant industrial sandbox
- 0h 57m 56s
Use sand to envelope the fuel.
- 0h 58m 35s
Pulp and paper plants consume their own power
- 0h 59m 21s
More recently they have started putting control of the plant on a tablet
- 1h 1m 48s
Sawmill residuals
- 1h 4m 15s
They did a project that was a "dam brush"
- 1h 6m 58s
Need to run autonomously
- 1h 10m 3s
Biperformance is looking to hire someone for firmware! Email hr@biperformance.ca
- 1h 15m 56s

An Interview with Chris Osterwood Jan 14, 2019

Show notes

Welcome Chris Osterwood of Capable Robot Components!

Robotics is a world of overlapping incompatible constraints

See all of the robots Chris was discussing on his homepage
"How do you (Chris Osterwood) define robots?"
- 0h 0m 39s
Article about automation
- 0h 1m 29s
High school job at java services company
- 0h 4m 14s
Chris graduated from Carnegie Mellon University
- 0h 4m 37s
Field robotics
- 0h 5m 7s
Robotics club
- 0h 5m 32s
Mechatronics program didn't exist then
- 0h 6m 9s
Trinamic
- 0h 8m 1s
Chips focusing on vision
- 0h 9m 5s
Rocket equation
- 0h 9m 33s
Cerebellum controller based on PICs
- 0h 10m 39s
Red Zone Robotics
- 0h 11m 6s
Robots that do nuclear cleanup
- 0h 11m 43s
600 pound, under 80 feet of pressure
- 0h 12m 11s
Sewer infrastructure
- 0h 13m 35s
Fully autonomous robot for residential pipes
- 0h 14m 31s
Bug story
- 0h 18m 27s
Drive train
- 0h 20m 53s
Make vs Buy
- 0h 25m 35s
Carnegie robotics
- 0h 29m 8s
Robot that reduces runoff in fields
- 0h 29m 19s
Algal blooms
- 0h 30m 16s
Applying nitrogen later
- 0h 30m 38s
Precision agriculture
- 0h 34m 43s
Promoted to CTO of Carnegie Robotics
- 0h 35m 25s
Spec'ing out systems
- 0h 36m 5s
NREC - National Robotics Engineering Center
- 0h 37m 41s
Carnegie Robotics was the commercialization partner
- 0h 39m 16s
Left and started Capable Robotics Components
- 0h 40m 46s
Now making the thing that people need to buy
- 0h 41m 3s
GigE on card
- 0h 41m 54s
USB hub on a card
- 0h 42m 7s
Test equipment
- 0h 42m 29s
Defining the interfaces
- 0h 48m 4s
IDEO library of materials
- 0h 49m 26s
Component libraries in house
- 0h 50m 48s
Ground robotics is changing
- 0h 53m 30s
Scene in 5th element choking on cherry
- 0h 54m 26s
Butter robot
- 0h 55m 5s
Challenge of time
- 0h 56m 38s
Camera systems
- 0h 57m 58s
Intel real sense
- 0h 59m 17s
Mikrobus
- 1h 3m 34s
Selling based on a datasheet
- 1h 6m 46s
"Robotics is a world of overlapping incompatible constraints"
- 1h 11m 23s
To work at a robotics company you don't need to know robotics or mechanics
- 1h 12m 27s
@osterwood
- 1h 15m 34s
osterwood.com
- 1h 15m 40s
capablerobot.com
- 1h 16m 2s
Check out the SenseTemp, coming up on CrowdSupply
- 1h 16m 45s

An Interview with Julia Truchsess Jan 07, 2019

Show notes

Welcome, Julia Truchsess, founder of Pragmatic Designs!

See all products discussed on today’s show in the Pragmatic Designs Gallery.

Julia got started with Lionel Trains
- 0h 1m 21s
Chris and Julia met on the KiCad forums
- 0h 1m 39s
Hickok Scope
- 0h 2m 27s
Heathkit
- 0h 2m 54s
Moved into professional days
- 0h 3m 33s
Electro Harmonix
- 0h 4m 41s
Mike Matthews
- 0h 4m 54s
Bob Myer worked at Bell Labs
- 0h 5m 5s
EH Big muff pi distortion pedal
- 0h 5m 18s
EH8000
- 0h 6m 35s
Adaptive filter
- 0h 8m 7s
Synthesizer in 78
- 0h 13m 1s
Set up EH in Britain
- 0h 13m 34s
Space Drums
- 0h 14m 3s
Crash Pad
- 0h 15m 23s
Soft Cell (who wrote "Tainted Love", which I think is the song we were discussing)
- 0h 16m 25s
Collectibles
- 0h 16m 59s
The clockworks
- 0h 17m 7s
EH had quality problems in 81
- 0h 18m 30s
Consumer
- 0h 20m 34s
Greeting card
- 0h 22m 43s
VLSI chip
- 0h 22m 49s
4 bit cops processors
- 0h 24m 54s
Quadlogic
- 0h 25m 27s
ATE for power
- 0h 25m 50s
PLMX
- 0h 26m 4s
Power line communication
- 0h 26m 55s
X10
- 0h 27m 54s
Playtime products
- 0h 29m 44s
"real engineer"
- 0h 30m 45s
Worked 5 years out of a spare bedroom
- 0h 32m 1s
Toy industry
- 0h 32m 54s
Low cost sound chips
- 0h 35m 56s
Shenzhen in 87
- 0h 38m 48s
Figuring out the Taiwan trading company to figure out the voice chip
- 0h 39m 31s
Coding up on DAT tapes
- 0h 40m 6s
Winbond in the speech business
- 0h 41m 27s
Power Speech
- 0h 41m 40s
TI LPC speech
- 0h 44m 12s
Magic bottle baby
- 0h 45m 27s
LR44 cells
- 0h 46m 42s
Singing tree
- 0h 48m 18s
Digital picture frames
- 0h 48m 22s
$450 when they came out
- 0h 48m 59s
Digi-Frame
- 0h 49m 25s
Licensing a design
- 0h 52m 28s
22 or 23 granted patents
- 0h 55m 6s
Spin master
- 0h 57m 3s
Feasibility studies
- 0h 58m 7s
Toy factories have costing engineer
- 1h 0m 42s
Came back to Connecticut
- 1h 1m 47s
Zildjian cymbals
- 1h 2m 13s
Perforated cymbals
- 1h 3m 23s
Zildjian gen16
Cymbal being hit in slow motion
Microchip design partner
- 1h 12m 49s
Consultant stuff from factory
- 1h 15m 46s
TUV Rheinland
- 1h 15m 57s
EMC consulting
- 1h 18m 1s
Henry Ott on The Amp Hour
- 1h 20m 54s
Keith Armstrong
- 1h 21m 0s
3D printer stuff
- 1h 21m 53s
Zortrax
- 1h 23m 16s
KiCon
- 1h 24m 20s
Express PCB
- 1h 24m 38s
Power distribution
- 1h 29m 15s
Skill building
- 1h 30m 26s

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