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Smoked Stamp? — Parallax Forums

Smoked Stamp?

FlyingFishFingerFlyingFishFinger Posts: 461
edited 2005-12-28 07:14 in General Discussion
Waaah!
I think I blew my Stamp!
I accidentally raised an input pin to 12V instead of 5V for a second or so. I'd hoped that it only blew that pin, but now the whole Stamp doesn't register any more...sniff...sniff..
What to do?
Rafael cry.gifcry.gif

Comments

  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2005-12-28 02:05
    You can contact Tech Support on January 2nd regarding this.

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    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
  • FlyingFishFingerFlyingFishFinger Posts: 461
    edited 2005-12-28 02:10
    Oh, right, you're all on holiday. Damn it, this is the only time I have time to play with my Stamp stuff, after Jan 2 I'm back to school too and then I have almost 0 time till March. Oh no,oh no...
    I just noticed that all pins, incl. AUXIO, show a little voltage. They all make a LED glow faintly.
    Rafael
  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2005-12-28 04:29
    My sympathies. I have been waiting for Chinese Lunar New Year's vacation to play with my stuff.

    Technology requires quite a bit of attention and it is difficult to get regular work accomplished at the same time. I guess that is why Edison only slept 3-4 hours a day. He was passionately devoted to his ideas.

    I am not sure if you blew the I/O or the voltage regulator. You can check by providing battery power [noparse][[/noparse]3AAs at about 4.5-5.0volts] to the unregulated power input. If the damage is to the regulator, you can provide 'auxilary regulated power' and continue on.

    AUXIO - It sounds like you have a BX40p.

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    "When all think alike, no one is thinking very much.' - Walter Lippmann (1889-1974)

    ······································································ Warm regards,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
  • FlyingFishFingerFlyingFishFinger Posts: 461
    edited 2005-12-28 07:14
    Yes, you're right, I do have a BS2p40. What I did was this: I have a 12v SLA running the Stamp with a 7805. During my testing with the CM8880 circuits I accidentally raised pin 7 to the 12V strip instead of the 5V strip on my breadboard, so I don't think it has anything to do with the onboard regulator.
    Anyway, there's not much I can do except to wait till Monday, is there (sniff)?

    Rafael
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