Dave demonstrates how much fussing around can be involved in selecting just a couple of cost optimised parts for a new design, using Digikey, Mouser, FindChips, Octopart and Atmel websites.

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By YTB

21 thoughts on “Eevblog #87 – let’s hop on the electronics design merry-go-round”
  1. Avataaar/Circle Created with python_avatars Demographic Replacement says:

    not done yet?

  2. Avataaar/Circle Created with python_avatars SimoWill75 says:

    In many ways, things were easier when we had LESS choice!

  3. Avataaar/Circle Created with python_avatars lnpilot says:

    Haha! So true! I've gone through half a dozen part iterations on some designs. Tried DC/DC converter IC #1, it got too hot. Tried a different one, the pins are too close for proper input voltage isolation (75V max input voltage with ~1mm pin separation? Really? On what magical super-insulator PCB?)

  4. Avataaar/Circle Created with python_avatars Austin says:

    Haha… "Hi…. just want to show you what it ta….what goes into designing…" lol

  5. Avataaar/Circle Created with python_avatars Martin D A says:

    With the design parameters chosen I am guessing the automatic cat polisher is near completion??

  6. Avataaar/Circle Created with python_avatars Martin D A says:

    I cant stop trying to scroll…

  7. Avataaar/Circle Created with python_avatars Bluelight says:

    I was wondering.. Is ExpressPCB software and service any good? Also do you have a small design I can do? I need to order PCB's and make something. Maybe a transistor audio amplifier or something! I want the lead free produscts I have soldering station and lead free tin! Thank you for your videos, they are great!

  8. Avataaar/Circle Created with python_avatars rwdplz1 says:

    True story – half way through watching this video, I received an email from an HR person at Digikey about a software engineering job, Really wish I could program, but I'm an utterly hopeless hardware guy.

  9. Avataaar/Circle Created with python_avatars Fern says:

    The only bad thing about these videos is I keep trying to use YOUR scroll-bar with MY mouse to look at other things on the screen.. :-(( WAAAH, Fail!

  10. Avataaar/Circle Created with python_avatars blueduck577 says:

    At just a glance I thought the filename of datasheet for the attiny48 was BOOBS.pdf

  11. Avataaar/Circle Created with python_avatars Srscricket says:

    "blow it out my ass" made me laugh

  12. Avataaar/Circle Created with python_avatars Randy Lott says:

    I can't find through hole transformers anywhere! None on digikey or mouser. I'm looking for 6V@500mA.

  13. Avataaar/Circle Created with python_avatars EEVblog says:

    @JeromeDemers ZXCT1009

  14. Avataaar/Circle Created with python_avatars fknrdcls says:

    Yeah this shite sends me crazy… hope u took it easy on ur interweb quota back then looks like u were a bit over 😉

  15. Avataaar/Circle Created with python_avatars DJGacke says:

    Hey Dave,

    There's a news article on the Sparkfun website that talks about how to make Digikey to sort by price. The post date was May 10. Sorry I couldn't post the URL, the comment system doesn't like that…

  16. Avataaar/Circle Created with python_avatars skonkfactory says:

    @EEVblog Yeah, but if you're just trying to get a couple boards made ASAP and it's something simple like an adapter for a ROM package or something…

  17. Avataaar/Circle Created with python_avatars EEVblog says:

    @skonkfactory
    I wouldn't recommend using propriety PCB software like that. Best to use something that can generate standard gerber files.

  18. Avataaar/Circle Created with python_avatars skonkfactory says:

    Hey Dave,

    just wondering in an unrelated sort of way- how do you feel about places like Pad2Pad?

  19. Avataaar/Circle Created with python_avatars EEVblog says:

    @Afrotechmods
    Probably, one day. Countless things to cover though, but I might basically convert my PDF PCB tutorial into a video for starters.

  20. Avataaar/Circle Created with python_avatars EEVblog says:

    @justthistime1000
    Youtube being retarded again!

  21. Avataaar/Circle Created with python_avatars doodoodood says:

    I appreciate the peek into the practical aspects of EE design

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