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Thanks for the class. Very informative

Iron

The example designs really helped provide an overall view and understanding of how the concepts can be used to improve our own designs. Thanks Warren.

Iron

We use UARTs a lot.

Iron

We have not used different run frequencies.

Iron

Many of our devices run at a higher voltages (3.3 to 5 volts).

Iron

I am currently working in the medical device industry.

Iron

Downloading slide deck...

Iron

Hello from Beaverton, Oregon.

Iron

hello all from Edmonton, Alberta

Iron

GREAT sir warren and thank you so much for giving us the topic...

thanks also to DIGIKEY and DESIGN NEWS for this wonderful continuing education for us to attend in renewing our mindset to a new learning while we are on job...

thanks to all and looking forward for another class...

i am now on slide 23 of the presentation, i am tired now for the whole day attending this continuing education in straight hours...but GREAT, at least i did finished all...

another goal for this day, which is my OFF DAY, that i have finished the lessons...

i have nothing to say on the delivery of the presentation, that's GREAT and well informative...i have learned alot...

 

i am now on slide 7 of the presentation...

i am now abot to begin with sir warren lecture with slide 3...

by the way, i am in the building services engineering industry...thanks.

i am now downloading the presentation slides of day 5 lecture...

yap, attendance make us worthwhile of a very informative lecture...once again, good afternoon sir warren and here i am for day 5 of your presentation...thanks alot.

thank you Warren for an interesting seminar. Attendance was definitely worth it.

Iron

catch up in last of this series

Iron

Thanks to Mr. Miller, Ms. Muskett and Digi-key.  Thanks also for archiving the class slides and lecture.  Overall a good class that improved each day and came together very well.  The example slides are well done and presentation audio ties it together.  Certainly worth the review.

 

Power Monitoring is a good application example.  It is a place where we may consider it heroic to save a few hundred micro Amps, but where we need to be thinking of saving 400 MWatts in each region of the country, be it from consumer, commercial, industrial, entertainment, municipal or other sources.

 

Be careful y'all with your battery charging designs!

@host: industry - telecom

Iron

Almost done with the track (last lecture).

Iron

Great to have access to the recorded sessions!

Iron

Better late than never...

Iron

Taking the class offline

Iron

Thanks Warren

I great week of information

I work in the gas detection field

Picking up the last day 

 

Thank you Warren & Lauren.

Iron

HW/SW R&D Engineering

Iron

good morning from San Jose, CA

Iron

Thanks Warren for this very informative course. I look forward to finding previous courses you've done or more in the furure.

Iron

Thank you Warren, I hope to hear you next time! Best Regards!

All presented material is great. I do not have any specific questions about content at this time.

Suggestion, it would be nice to talk about power preserving, distribution and harvesting at MCU level as self contained module of some sort.

@All- Appreciate all you comments. Please let me know if you have any thoughts on how future classes could be improved.

Iron

@richwillaims- Yes the Internet of Things is going to have some very important low power requirements. I believe this is one of the major drivers for more Low Power MCUs and more advanced low power features. Once the wireless block becomes more integrated things become even more interesting (from a low power standpoint).

Iron

As the intiernet of things moves to mesh networks(like power meters), the power estimates need to include waking up to relay other nodes messages and an estimate of total network traffic.  Not really a question, just a thought.

Thanks Lauren and Warren, it was a very useful information. 

Iron

thanks for the webinar.

Iron

@Pat Mc- Great to hear that this will be useful in your design. make sure you check out the references I included at the end of the first 4 lectures. I think you will find that they provide even more details that will be useful.

Iron

Great layout of the strategy for controlling energy usage!

Thanks.

Iron

@DaveWR- Yep typo in that bullet point. Should say that usually higher frequency operation is more power efficient (if you are compute bound).

Thanx!

Iron

I found your presentations very beneficial. Thanks Warren!

Iron

Thanks for some good information

Iron

Great series, Thank you very much Warren, all sesions were great!

Iron

Thank you Lauren & Warren for your efforts and time.

 

Iron

Thank you!, Great choice for a topic.

Iron

Thank you Warren.  I am working on a low power MCU project right now and I will be able to put what I have learned to use immediately.

Iron

Thanks Miller, It's very useful class.

Iron

Thank you so much!!

Iron

Excellent class! Thank you.

Iron

Thanks Lauren and Warren

Iron

Thank you Warren and Lauren

Iron

Thanks, the real world examples were very useful

Usually sensors conditioned and unconditioned.

Iron

UART, I2C and spi interfaces used

UART, I2C. Moving to USB

Iron

UART & I2C most common

Iron

Mostly I2C, plus UART, Ethernet  to PC

Iron

usually uart, sometimes SPI, occationally bit banged.

Iron

usually slower designs but this is usually layout issues and RFI rather than power.

Iron

Not so far, but I can visualize using this technique in the near future.

Iron

No. But interesting idea

Iron

Plan to use two frequencies on upcoming project. One mode needs higher clock on peripheral, but this mode is used very infrequently.

Iron

several designs have used multiple clock freq

Iron

Yes, 8MHz, and 32KHz

Iron

 

Note that the higher frequency will always usually in a lower average current drain.

 

You do have to fix that sentence ...

Iron

3.3V, down to 1.8V

 

Iron

Usually 5V, 3.3V sometimes.

Mostly 5V or 3.3V.  Next battery project will use 2.7V or less

Iron

3v typically. Previous designs were 5V

Iron

3.3 volts during normal operation and sleep, 1.8 volts while on back up battery

Iron

Thank you for hosting another class.

Iron

development & design

Project Leader

Iron

@JSP: We have had trouble with turning off Ethernet -- usually means trying for the IP again... In a DHP style system. It can be a real nuisance with Windows and Linux systems.

Iron

Hardware EE, R&D, Test, medical devices

Electronic Control Devices

Iron

Industrial Measurements

Iron

audio working after click the play button serveral times. How come it does not auto start? like the old days of 2011?

Iron

Hello from Sunny SE lake Simcoe Ontario Canada -- -12C this morning.

Anybody got work avail in Calif. or Florida?

Jus' askin'

Iron

currently HVAC Control systems

Iron

Security and Surveillance

Iron

Still cold here in the South,  the information and discussions this week have been very good and I am glad that I could listen.  Have a great 2013 to all.

Iron

Here we go audio is up!!

Iron

Hello from Cedar Park, TX

Iron

Hello from chilly Boston! Brrrrr!!

Iron

Hello from Tennessee

 

Iron

Hello from Costa Mesa, CA

Iron

@JSP- I don't really cover the types of processors your are asking about, but hopefully some of the techniques and triacks will still apply. Power off as much as you can (hopefully Enet, USB etc cab be powered off/down or at least gate the clocks) and make sure any external devices that are running off your battery are in low power states too. Could you use an external MCU to do the wake-up and put your processor in a really low power state? Wake time of your processor seems to be the big issue however.

Iron

Good afternoon from Chicago

Iron

@Roy Normally within an hour or so after the lecture. I hope you mean Pacific.

Iron

Good morning from the best coast!.

Does anyone know if the audio portion of lectures is available in the archives?

Thanks in advance,

 

Roy

Iron

So we've been talking about rinky-dinky little processors so far, but I wonder if there is going to be any mention about power-saving techniques with heavy-hitting ARM9/11 processors that can run at 400MHz, 700MHz (Pi), 1GHz (Cubieboard) with an embedded OS such as some Linux distro. I'm currently working on a project where I have to sleep this behemoth and then have it wake up to perform heavy-duty processing when an ext INT/rtcwake is applied. No, it doesn't have a user (interface, push-button finger) and it can't wait the 30 seconds+ while Linux/M$Win/whatever fires up. Any tips to power down all the usual PC-like junk USB/Ethernet/video/SSDs/CPU etc on these boards and have them not consume all the meagre battery capacity when not in use ? 

Iron

Wir benötigen etwas Aufzugsmusik, während wir warten

Iron

Please join our Digi-Key Continuing Education Center LinkedIn Group at http://linkd.in/yoNGeY

Platinum

Hello all from SLC - i glad the audio will play. I just wish it would auto start playing, without my manual  intervention to click the triangle play button.

Iron

37 degF and sunny in Minneapolis today!

Iron

Greetings from Chicago!

Iron

Good afternoon, everyone

Iron

Howdy folks!  TGIF  :)

The streaming audio player will appear on this web page when the show starts at 2pm eastern today. Note however that some companies block live audio streams. If when the show starts you don't hear any audio, try refreshing your browser.

Platinum

GOOD afternoon from Sunny Boston, TGIF.... GO PATRIOTS!

Iron

Hi Everyone. Morning! I am sherlock in Vancouver

Iron

Good morning from SoCAL

Iron

Be sure to click 'Today's Slide Deck' under Special Educational Materials above right to download the PowerPoint for today's session.

Platinum

Morning!

Starbucks cards good

Iron

Can't spell yet, no coffee

Iron

Good monring from Long Island

Iron

This has been a good series!

Good morning from Scottsdale

Iron

Good Morning from Milwaukee!

Iron

Very informative week session. No audio when i try to attend archived session

Iron

Good Morning from Mobile, AL



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