Good suggestion, really hard to say with such little information. I am still stoked over a great Superbowl gameHi,
Also, if you could provide a drawing of how you hooked it up just before it blew that would help evaluate what went wrong.
And what kind of Arduino was is, Nano, Uno, etc. ?
I ask this because you can get a new Nano for about $3 USD with free shipping from a place called "Banggood" (online store) and several people on this forum have ordered from them and got a lot of different parts like that. A new Uno is a little more. The shipping takes a little longer but once you get it you'll have a brand new one. I then suggest that you go to the Arduino site forum and ask about how to connect other things to the board or ask right here. If you need a Nano with a USB cable also then it's a little over $4 USD. Uno's are about $5 USD.
You did not specify your country so you have to check if they ship to your country, but they do ship to most countries i think.
Why not just clip the leads on the regulator going to the board? Looks simple enough to do.If you don't have the proper equipment and you are good with your hands you can simply cut out the damaged voltage regulator chip with a small craft knife, but you must be very careful not to damage the printed circuit board that the regulator chip is solder
Good point Mike- I like to make things difficult.Why not just clip the leads on the regulator going to the board? Looks simple enough to do.
Arduinos can also operate from a regulated 5V supply line from a USB power source. You could try this and your Arduino may still work. But the chances are that you will have to remove the damaged regulator chip and then see if the Arduino will run from a 5V USB source.
Is there any chance of the OP damaging the USB port in doing this?
I am willing to bet that he just put a direct short from +5v to gnd and everything else is just fine.
Reminds me of the old adage, measure twice, cut once...
In that case, I would say the board is toast.I'm not sure that shorting the 5V supply line from the voltage regulator to 0V would do any damage because the voltage regulator has thermal and current overload protection.
Would you be willing to risk your PC making that assumption?Similarly, USB 5v sources are normally tolerant of a short circuit
Not necessarily Mike, if the voltage regulator has been over volted and has gone short circuit.In that case, I would say the board is toast.
No mention of PC- I would have no hesitation in using a $2US USB wall wart though.Would you be willing to risk your PC making that assumption?
Hi Oro,
Sorry to hear about the mishap with your Arduino.
I am assuming that when you say transistor you are in fact referring to the voltage regulator chip U1 in the schematic below.
Afraid to say that your Arduino may be a write-off, but there is also a good chance that the voltage regulator chip, failed short-circuit to ground and saved the rest of the board.
Arduinos can operate from a non-regulated supply of about 6 to 14V: I would guess that you exceeded 14V and that blew the voltage regulator chip. On the other hand if you connected more than 5V to one of the GPIO pins on the Arduino that is liable to write the processor off but you may be lucky.
Arduinos can also operate from a regulated 5V supply line from a USB power source. You could try this and your Arduino may still work. But the chances are that you will have to remove the damaged regulator chip and then see if the Arduino will run from a 5V USB source.
If you don't have the proper equipment and you are good with your hands you can simply cut out the damaged voltage regulator chip with a small craft knife, but you must be very careful not to damage the printed circuit board that the regulator chip is soldered to.
Alternatively, you can smash the case of the regulator with a small pair of pliers. It does not matter if there are bits of the regulator still attached to the printed circuit board so long as there is a gap between the three or four legs of the voltage regulator chip.
If you are thinking of replacing the regulator chip, it is normally part number: NCP1117ST50-3G but there are many similar regulator chips used, so look for the 1117 50 bit in the part number (the 50 means 5V regulated output). AMS1170-50 is a common part number. 1117 50 voltage regulator chips are available on the net for around $1US with free post and packing; make sure you get the 5V version and not the 3.3V version which is more commonly available. But you will need to get someone with the right equipment to remove the old voltage regulator chip and fit the new voltage regulator chip.
But, as the other members have stated, Arduinos are so cheap, depending also on the specific Arduino that you have, that it is hardly worth repairing a damaged Arduino.
**broken link removed**
VOLTAGE REGULATOR SUPPLIER LINK
https://www.ebay.com.sg/itm/AMS1117...hash=item33c37bb61b:m:m9PR62n_w7NsGJVbfGndKpA
VOLTAGE REGULATOR DATASHEET
It is annoying when you do something like that.Hi,
Nice to see the whole schematic in one shot like that.
I messed up one of my Nanos by pulling UP too hard on the small mini USB connector that is soldered to the board when i went to remove the cable. It ripped the whole connector right off the board. Nasty. Lucky the Nano still works, but i'd have to program it with a serial programmer, as when using a second Arduino "as programmer" and with some jumpers.
It is annoying when you do something like that.
I fu**ed one of the USB sockets on my laptop by plugging in a faulty USB plug and also trashed a HDD by spilling beer on it.
Seems like many people are getting into Arduinos and Raspberry Pi these days. I have a few of each in the spares box but have only looked at the theory side so far.
spec
If I posted my opinion of the mechanical side of the USB standards the ETO mods would probably sensor it.Wow, definitely not good, sorry to hear about that. How was the USB plug faulty? Just wondering how it could mess up a socket.
What a sad use of a precious liquid (beer, haha). For that i guess the HDD was out of the computer?
Yeah a lot of people are getting into Arduino because of three main factors i believe:
1. Low cost, even to start with your first one, and free IDE.
2. Programs are done in C or C++ and are pretty easy to get up and running, so once you do a little programming in the IDE and get used to it a little you can create applications and projects in an hour or less sometimes, depending of course on how sophisticated they have to be.
3. No programmer required, just plug into the USB and the IDE can upload programs into the chip on board.
But even an LED blink program takes less than 15 minutes to create and upload and run. There's so little too it. That acts as groundwork for more complex projects, which are not that hard to produce really.
The Arduino has an I2C library so you can use displays as easy as sending characters to a port. Easy to use displays include the 1602 and 2004 displays, which require almost no work to get going.
If you havent used one yet you should give it a try, you'll be surprised at how simple it can be. Beware though you'll get hooked
Alcohol AbuseWhat a sad use of a precious liquid (beer, haha).
I think this is due to the open source platform, at least that's what I read.Seems like many people are getting into Arduinos and Raspberry Pi these days.
Gee, I did not even think of that.No mention of PC- I would have no hesitation in using a $2US USB wall wart though.
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