278: Bricks' Batteries Last Forever (Repeat)
Embedded11 Helmi 2022

278: Bricks' Batteries Last Forever (Repeat)

Matthew Liberty 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.

Find Matt on Twitter as @mliberty1.

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(567)

512: What if I Didn't Stop?

512: What if I Didn't Stop?

Katherine "Smalls" Connell spoke with us about making thin and flexible circuits, making stretchable electronics, and running a successful Kickstarter. Katherine's Kickstarter: Sprite Lights LED Body...

16 Loka 20251h 5min

511: Forty Trillion Divides

511: Forty Trillion Divides

Chris and Elecia talk about the show overflowing to another bit, fight over vim vs nano, consider awards, discuss writing (and self-motivation), consider linear algebra on AI cores, encourage remote d...

2 Loka 20251h 22min

510: The Secret Chip

510: The Secret Chip

Christina Cyr spoke with us about building cell phones, entrepreneurship, social purpose corporations, awards, lithium recycling, and her interesting career path. We talked about Christina's Cyrcle P...

19 Syys 20251h 4min

509: Swarmed by Engineers

509: Swarmed by Engineers

Steve Hinch wrote a book about engineering, innovation, and business. He shares decades of wisdom gleaned from his career at Hewlett-Packard and Agilent as an engineer, manager, marketing director, an...

5 Syys 20251h 13min

508: Descartes' Demon

508: Descartes' Demon

William Griffin spoke to us about hardware-in-the-loop testing, simulation, terminology, learning complex topics, and books. We don't usually expand upon the show title but Wikipedia has a rabbit hole...

21 Elo 20251h 22min

507: Turn Our Data Into Predators

507: Turn Our Data Into Predators

Chris and Elecia chat about books, courses, alternate podcasts, electronics, statistics, kidnapping Roo, and journaling failures. The Embedded Patreon book club is reading Data-Driven Science and Eng...

7 Elo 20251h 14min

506: How Do I Fit a Whale Into an Apartment Building?

506: How Do I Fit a Whale Into an Apartment Building?

Dmitry Grinberg joined us to talk about running Linux on small microprocessors (physically small and/or 4-bit). Dmitry does this by emulating a MIPS processor. Boot times vary between minutes and days...

25 Heinä 20251h 2min

505: Potato in a Number Field

505: Potato in a Number Field

We spoke with Peter Griffin about Jumperless Breadboards, no-install GUI development, Excel, and puppies. Jumperless Breadboard at CrowdSupply Colab GUI for Jumperless Breadboard Website GUI for ...

10 Heinä 20251h 18min

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