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Topic: arduino is extremly hot!!! (Read 2617 times) previous topic - next topic

srrs4

when i plug the usb cable to the arduino(reddboard) the arduino is getting hot and its not working... help!!!

Grumpy_Mike

Quote
the arduino is getting hot and its not working

Sounds like it is broken.

srrs4

how can it be broken? im not doing anyting speciel to the arduino... i just put it on the table... there is no way to fix it?

Zapro

It's probably just a dud - get a replacement.

// Per.

Grumpy_Mike

Quote
how can it be broken

I don't know, what have you been doing to it?
Did it ever work?
Does your computer see it as a USB device?
Is there anything else connected to it?
Has it been subject to any static?

What you describe is not normal, it is broken:-
https://www.youtube.com/watch?v=4vuW6tQ0218

AWOL

Quote
i just put it on the table.

Is the table at all conductive?

steinie44

Sounds to me that when you put that 1000uf cap on + & - last month, it may have burned the regulator.
You can't do that stuff. A discharged cap is a direct short when power is applied.

srrs4

Did it ever work? yes
Does your computer see it as a USB device? yes
Is there anything else connected to it? no


steinie44 - im dont think that the voltage regulator is burn because the microcontroller is the hot component... not the voltage regulator. and the aruino was keep working after i connect the capacitors...

there is any way to fix it?

sorry about the english :)

Zapro

Replace the Atmega328P-chip.

// Per.

srrs4

if there is no other way im Probably buy a new board... thanks for help!!

Zapro


if there is no other way im Probably buy a new board... thanks for help!!


$4 vs. $20, your call.

// Per.

cjdelphi


Sounds to me that when you put that 1000uf cap on + & - last month, it may have burned the regulator.
You can't do that stuff. A discharged cap is a direct short when power is applied.



A 1mf capacitor on it's voltage rails would not have damaged the atmega chip, I doubt the regulator would have cared much either...


If the cap was on an output pin, different story.



mart256

#12
Aug 11, 2014, 05:30 am Last Edit: Aug 11, 2014, 05:33 am by mart256 Reason: 1

im dont think that the voltage regulator is burn because the microcontroller is the hot component... not the voltage regulator.


If regulator doesn't get hot doesn't mean it's not dead I guess.. Check voltage levels on it.
The microcontroller gets hots when there is a short between VCC and GND. Check with your tester.

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