278: Bricks' Batteries Last Forever
Embedded15 Helmi 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.

Jaksot(569)

498: To Consume Stickers

498: To Consume Stickers

At the end of this week's show, Elecia reads a Winnie the Pooh poem as Cookie Monster death metal. Before that, Chris and Elecia chat about mental health, journaling, personal projects, and listener q...

4 Huhti 20251h 6min

497: Everyone Likes Tiny

497: Everyone Likes Tiny

OpenMV has a new Kickstarter so CEO Kwabena Agyeman chatted with us about more powerful (and smaller!) programmable cameras. See OpenMV's site for their existing cameras. See their (already funded!)...

20 Maalis 20251h 24min

496: Beauty, Elegance, Consistency

496: Beauty, Elegance, Consistency

Professor Shimon Schocken spoke with us about teaching computer science from NAND logic gates to arithmetic units, micro assembly, virtual machines, compilers, operating systems, and the Tetris games....

6 Maalis 202559min

495: Shortcut the Difficulties of Reality

495: Shortcut the Difficulties of Reality

Professor Cindy Harnett spoke to us about new and different sensors and actuators, primarily designed for soft robotics and fabricated with relatively low cost materials. Cindy is a professor of elect...

21 Helmi 20251h 1min

494: All Tech Is Wearable

494: All Tech Is Wearable

Debra Ansell joined us to talk about finding friends and exchanging neat gifts, accidentally tricking people into making unmanufacutable boards, and happy, blinking lights. Debra is usually known by t...

7 Helmi 20251h 15min

493: Put the Peeps in the Chili Pot

493: Put the Peeps in the Chili Pot

Elecia and Chris talk with each other about the state of Chris' mind, what makes an embedded developer stand out, "LEGO block" based design, unit tests, and astronomy. Whew! Elecia was recently on the...

24 Tammi 20251h 20min

492: Octopus Army

492: Octopus Army

Nathan Jones chatted with us about his proposal for a computer architecture book based on a 4-bit computer. Nathan found the 4-bit computer in the Hackaday SuperCon 2022 badge and was amazed by some...

27 Joulu 20241h 9min

491: Oscillators Oscillating Other Oscillators

491: Oscillators Oscillating Other Oscillators

Chris and Elecia spoke with Kirk Pearson about running audio-electronic-art workshops, interesting sounds, and their book Make: Electronic Music from Scratch: A Beginner's Guide to Homegrown Audio Gi...

13 Joulu 20241h 6min

Suosittua kategoriassa Tiede

rss-mita-tulisi-tietaa
tiedekulma-podcast
rss-poliisin-mieli
utelias-mieli
rss-duodecim-lehti
mielipaivakirja
rss-metsantuntijat-podcast
rss-luontopodi-samuel-glassar-tutkii-luonnon-ihmeita
university-of-eastern-finland
docemilia
vinkista-vihia
rss-vaasan-yliopiston-podcastit
rss-duokkari-ekstra
rss-astetta-parempi-elama-podcast
rss-tiedetta-vai-tarinaa
rss-pandapodi
rss-lapsuuden-rakentajat-podcast
rss-miljonaarien-tasavalta