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I just blew up my Arduino ☺. It's actually kind of fun to connect 5v to gnd while on mains power. Makes a nice big flame. I might buy a new one just to explode it again and take a video...

Comments
  • 1
  • 2
    DO IT! For Science ™.
  • 0
    @rutee07 💣
  • 1
    You monster.
  • 2
    I WANT VIDEO!! Destruction and anarchy!!!
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    I am not sure, but the only thing that is dead should be the voltage regulator. You could probably just solder on a new one (SMD though) and make it go BOOM.
    Correct me if I am wrong.

    To add some Michael Bay flair, edit in a mushroom cloud in the video.
  • 2
    Desolder the regulator, it might still work on USB power.

    Also dont waste good, expensive electronics.
    Just blow up the voltage regulator next time.
  • 1
    If you're working close to the hardware, it has to blow up from time to time.

    May handicap is 2-3 years per blow-up
  • 0
    I wonder why the over current protection of the voltage regulator didn't trigger.
  • 0
    @sbiewald Probably because of the wrong polarity.
  • 0
    @sbiewald Wich protection? The NCP1117 has none.
  • 0
    @lastNick "Internal protection features consist of output current limiting."
    On first sight I'd have said this included protection against short circuiting... But you seem to be right here.

    @Scade Unlikely, as there is a diode at the external voltage input.
  • 0
    @lastNick @sbiewald Or in other words: these cheap voltage regulators* are the protection.

    *Example: LD1117-5.0 from lcsc.com costs 0.037USD/piece
  • 0
    @lastNick It's not there is a poly fuse to protect the USB port... I wonder how much it would have cost to add one for the external power, too.
  • 2
    @sbiewald SMD resettable fuse with I_hold=500mA and I_trip=1A costs at least 0.00289$/piece + mounting/piece + schematic and pcb dev costs
    If you use another fuse than the existing USB fuse you have to add additional costs for the supply chain and quality control
  • 1
    Just fuse blew up. Replace it and its OK.
  • 1
    Looks to me like you only blew the 5v regulator?!
  • 0
    240fps video please
  • 0
    Why don't learn electronics basics? You were lucky only Arduino died (actually, the MCU is alive, the regulator and/or the diode died), a short circuit can burn the USB port on your PC.
  • 2
    @Haxk20 the fuse actually seems to be 100% fine. I guess only the regulator released the magic smoke.
  • 1
    @bytecode Shit im blind. Yeah you are right. But i would replace the fuse too.
  • 0
    @lastNick Was more a rhetorical questions, but thank your information.
  • 0
    Same thing happened to me 2 year's before on an arduino mega , you can just disolder the regulator and use is with the Vin pin on the rail (you must only supply 5v through that because its unregulated) , or just replace the regulator.
  • 0
    Perhaps you just blowed up the Mosfet
  • 0
    is yours a newer one? I see no 3.3v...

    EDIT: nvm, bottom-right corner
  • 0
    @LuxARTS
    He was using external power.
    USB in PC's usualy have protection against shorts.
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