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  1. #31
    Senior Membrane spirilis's Avatar
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    Used the TI TPS61221... looked like it was optimized for these scenarios
    intp | type 9w1 sp/sx/so

  2. #32
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    Nice project. I might have use for a remote monitoring device also. I'll take a look at the parts you used.

  3. #33
    resonance entropie's Avatar
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    Quote Originally Posted by spirilis View Post
    Used the TI TPS61221... looked like it was optimized for these scenarios
    Ouh yeah 5,5µA quiscient current is a luxus model, that way you really should be able to make those bats last a year.

    I have lately been looking into combining an avrs sleep mode and power down states with a boost converter in one chip. As in when the load is not needed the chip will go to sleep and the conversion will stop. That way you could stop the conversion if not needed and reduce power consumption some some nA.

    I am still working on my nixie clock:







    Since I am no electrotechnician I have no idea tho if I placed the parts correctly on the layout and havent build some sorts of current loops, which will prevent that thing from functioning :/
    [URL]https://www.youtube.com/watch?v=tEBvftJUwDw&t=0s[/URL]

  4. #34
    Senior Membrane spirilis's Avatar
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    Nice, I might have to make a VFD or nixie tube-based clock one of these days... although LEDs work well enough for me generally.

    I'm not too familiar with the intricate details of switching power supplies, I generally understand what they do but I leave the implementation details to the experts and buy their ICs
    intp | type 9w1 sp/sx/so

  5. #35
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    For home use, the placement is not too important. Even a breadboard would work in most cases.

  6. #36
    resonance entropie's Avatar
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    My Nixie layout is done, gona see if it works. When I am lucky I get around the weekend to soldering it

    [URL]https://www.youtube.com/watch?v=tEBvftJUwDw&t=0s[/URL]

  7. #37
    Senior Membrane spirilis's Avatar
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    nice! I scored a freebie from someone on the 43oh forum, a launchpad boosterpack PCB plus sample chips to get a VFD tube clock working... just no tube, so I will have to go hunting for that at some point.

    Also tackling the Renesas RX, approaching it methodically "one peripheral a week." Currently trying to figure out how to write & read to the 32KB Data Flash segment onboard...
    intp | type 9w1 sp/sx/so

  8. #38
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    Oh shit, I remember uC programming.

    We had a club back in college that built robots and pitted them against other robots in our area of the country. Nobody understood deadlines and testing, so we often didn't have a working machine. Then again, neither did anyone else.

    We used ATmegas because you could pretty much use straight C with them.

    My role was mostly reorganizing the hell out of that club, introducing training programs for freshmen to get exposed to this stuff, etc. I'm an enabler. I guess that's in my blood.

    My best personal project was a guitar pedal.

    Quote Originally Posted by entropie View Post
    My Nixie layout is done, gona see if it works. When I am lucky I get around the weekend to soldering it
    Damn, that looks pretty neat.

  9. #39
    resonance entropie's Avatar
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    Quote Originally Posted by spirilis View Post
    nice! I scored a freebie from someone on the 43oh forum, a launchpad boosterpack PCB plus sample chips to get a VFD tube clock working... just no tube, so I will have to go hunting for that at some point.
    You could have a look here: http://www.tube-tester.com/sites/nixie/nixie-tubes.htm

    That guy has lots of Nixies and VFDs, he fluently speaks english so you can mail him too (he just looks a bit scary)
    [URL]https://www.youtube.com/watch?v=tEBvftJUwDw&t=0s[/URL]

  10. #40
    resonance entropie's Avatar
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    I majorly effed up with the resistors in the layout . Looks funny tho

    Need to program the chip tho still, so now test run yet. Soldering russian nixies is a bitch, took me 7 hours ....
    [URL]https://www.youtube.com/watch?v=tEBvftJUwDw&t=0s[/URL]

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