278: Bricks' Batteries Last Forever
Embedded15 Feb 2019

278: Bricks' Batteries Last Forever

Matthew Liberty (@mliberty1) shared good advice for lowering power. We talk about different ways to measure current (Matt has a nice write-up) and things software can do to decrease power consumption.

Sleeping is critical, of course, as is choosing your clock speed and setting the GPIOs to good states. Everything is fine until you start getting into the microamps, then your multimeter measurements may start to fail you. (EEvblog explains why in his uCurrent intro.)

Eventually, you may want to measure nanoamp sleep states along with amp-consuming wake states. Matt's Joulescope is a tool to do just that (Kickstarter goes live Feb 19, 2019!), automatically moving between 9 orders of magnitude of dynamic range and graphing the results on your computer.

Matthew's consulting company is JetPerch.

We mentioned Colin O'Flynn's ChipWhisperer which uses differential power analysis for security attacks. We also talked about Jacob Beningo's post on protecting your tools.

Elecia is giving away a chapter of her O'Reilly book, Making Embedded Systems. It is Chapter 10: Reducing Power Consumption. Hit the contact link if you want a copy.

Avsnitt(571)

19: Bacon and Beer Event

19: Bacon and Beer Event

Karen Field (@karenfield) and Elecia talk about 2014 DesignWest, the embedded systems conference, and how to submit your idea for a session. 2014  DesignWest is March 31 - April 3, 2014. Call for abst...

18 Sep 201346min

18: Brine Solids Building Up in Strange Places

18: Brine Solids Building Up in Strange Places

Elecia White and Amy Button discuss Amy's dream of going to Mars, her previous role in training astronauts to handle disasters, and her current work on a magic box of rocks that will keep Orion's air ...

11 Sep 201343min

17: Facebook Status: Maybe Not Dead

17: Facebook Status: Maybe Not Dead

Elecia White spoke with Elizabeth Brenner about devices that can be used to help families worry less about grandparents who live alone (and 87-year-old neighbor friends named Dolores).  Life Alert is ...

4 Sep 201353min

16: Democracy Is the Worst Form of Government

16: Democracy Is the Worst Form of Government

Elecia tries to get a handle on whether Agile works with embedded software.  Curtis Cole (@citizencurtis) argues in favor of user stories, scrums, and story points. Agile software development on Wikip...

28 Aug 201353min

15: Robot on the Front

15: Robot on the Front

Andreas Eieland (@AndreasMCUguy) from Atmel joined Elecia to talk about how the AVR processor line came to life, why there is an AVR in Arduino, and the spirit of making things. Arduino AVR Freaks Atm...

21 Aug 201348min

14: Hot

14: Hot

Artist Kristin Anderson of Idle Creativity spoke with Elecia about the technology of working with slumped glass, getting started on Etsy (Elecia mentioned her craft electronic ideas), and moving from ...

15 Aug 201341min

13: Introspective Nasal Gazing

13: Introspective Nasal Gazing

Christopher White ( @stoneymonster) emerges from his producer responsibilities to chat with Elecia about starting a podcast: the gadgetry, the software, the distribution, and, the big question, why we...

7 Aug 201354min

12: You Have a Jedi Sword

12: You Have a Jedi Sword

Dr. Edward White spoke with Elecia about how technology has changed medicine. He described gadgets used in surgery (harmonic scalpel!), how hospitals acquire tools, and why engineers should be focused...

31 Juli 201349min

Populärt inom Vetenskap

dumma-manniskor
p3-dystopia
allt-du-velat-veta
svd-nyhetsartiklar
kapitalet-en-podd-om-ekonomi
rss-vetenskapsradion
det-morka-psyket
rss-spraket
rss-vetenskapsradion-2
medicinvetarna
rss-ufo-bortom-rimligt-tvivel-2
barnpsykologerna
dumforklarat
sexet
hacka-livet
paranormalt-med-caroline-giertz
vetenskapsradion
doden-hjarnan-kemisten
halsorevolutionen
vetenskap-och-halsa