Page 4 of 10 FirstFirst 123456789 ... LastLast
Results 31 to 40 of 93

Thread: General question about powering an arduino

  1. #31
    Resident 100HP water-cannon operator SXRguyinMA's Avatar
    Join Date
    Jun 2008
    Location
    MA
    Posts
    5,865

    Default Re: General question about powering an arduino

    alright I go tmy caps in today, Is hould be able to get this breadboarded tonight. Now I know I can hook it to the 5v pin on the arduino to get power, but will this pin also pwoer the arduino or only the USB or jack?

  2. #32
    Fox Furry crenn's Avatar
    Join Date
    Apr 2005
    Location
    In the shadows behind you
    Posts
    4,067

    Default Re: General question about powering an arduino

    Wait a bit because I think we need a couple of extra components.
    Antec Sonata II | Pioneer DVR-212
    Good news! You can follow my website or follow me on twitter!

  3. #33
    Resident 100HP water-cannon operator SXRguyinMA's Avatar
    Join Date
    Jun 2008
    Location
    MA
    Posts
    5,865

    Default Re: General question about powering an arduino

    k

  4. #34
    Resident 100HP water-cannon operator SXRguyinMA's Avatar
    Join Date
    Jun 2008
    Location
    MA
    Posts
    5,865

    Default Re: General question about powering an arduino

    well I ended up breadboarding it up anyways and it works! I don't see the point in the resistor from the cap + to board + though, it seems to just make the caps take longer to charge. I let it run until both caps read about 2.5v, then unplugged the power supply. I cycled the servo back and forth several times and it worked fine

  5. #35
    Fox Furry crenn's Avatar
    Join Date
    Apr 2005
    Location
    In the shadows behind you
    Posts
    4,067

    Default Re: General question about powering an arduino

    The reason for the resistor is to reduce the current drawn from the PSU, the other thing I wanted to do was make sure when the system was off, that the current wouldn't leak back into the computer.
    Antec Sonata II | Pioneer DVR-212
    Good news! You can follow my website or follow me on twitter!

  6. #36
    Resident 100HP water-cannon operator SXRguyinMA's Avatar
    Join Date
    Jun 2008
    Location
    MA
    Posts
    5,865

    Default Re: General question about powering an arduino

    this is now I've got it hooked up, but with the 2 10F caps instead of the .47F one


    http://www.arduino.cc/cgi-bin/yabb2/...m=1279813240/0

  7. #37
    Fox Furry crenn's Avatar
    Join Date
    Apr 2005
    Location
    In the shadows behind you
    Posts
    4,067

    Default Re: General question about powering an arduino

    A 5v zener diode?

    Also, how long does it take to charge the circuit?
    Antec Sonata II | Pioneer DVR-212
    Good news! You can follow my website or follow me on twitter!

  8. #38
    Resident 100HP water-cannon operator SXRguyinMA's Avatar
    Join Date
    Jun 2008
    Location
    MA
    Posts
    5,865

    Default Re: General question about powering an arduino

    yes 5v, seems to take about 4 or 5 mins to fully charge both. I hooked my multimeter to them and watched it creep up ever so slowly, but one got to 2.497v and the other to 2.502 and seemed to stabilize there

  9. #39
    Fox Furry crenn's Avatar
    Join Date
    Apr 2005
    Location
    In the shadows behind you
    Posts
    4,067

    Default Re: General question about powering an arduino

    Got a model number for that zener? I'm guessing the capacitor at 2.497v was closer to ground?

    I'm currently fiddling with the simulator.
    Antec Sonata II | Pioneer DVR-212
    Good news! You can follow my website or follow me on twitter!

  10. #40
    Resident 100HP water-cannon operator SXRguyinMA's Avatar
    Join Date
    Jun 2008
    Location
    MA
    Posts
    5,865

    Default Re: General question about powering an arduino

    actually the lower voltage one was the one hooked to the diode, resistor adn 5v, the higher voltage one was on the ground side.

    This is the diode I used:

    http://www.radioshack.com/product/in...erValue=Diodes

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •