Accidentally supplied 24V 0.5A to Arduino UNO R3

Using Arduino IDE 1.x
1

My concern is now if my components connected to the digital output pins of the Arduino is damaged.

I currently don't have access to the lab so I can't test them for the time being and is very anxious and stressed out thinking about this at home.

I have an speaker, 5v LED strips, Load cell and servo connected to the Arduino

Anyone with experience on this matter?

Edit:
I forgot to add that when I connected the Arduino to my laptop via USB it fried my laptop.
Tbh I'm over that my laptop is dead but I'm really hoping the components are still working

Update:
I'm not sure what is happening, I managed to get into the lab to pick out the Arduino Uno and I'm able to successfully run a basic Example blink code using the onboard LED. I used the board on Wed for about 3 hours with it working fine for the first 2 hrs even though it was on 24Vs. During the later half of the day was when the board stopped working, fried my laptop and wasn't recognized when plugged into another laptop.

I still currently don't have the means to test the remaining components, I'm really hoping this means that the Arduino simply overheated from the high voltage.

Thank you for the comments

2

Yes. And not good. Where did you connect the 24v? Did you see smoke?

3

It was connected to the AC socket
There wasn't smoke and it was working for quite some time initially

4

You mean the Vin jack connector?

Most likely scenario is that you have damaged the onboard voltage regulator. If that is all then it's not the end of the world.

Have you tried to power the Uno via a 5v power supply direct to the 5v pin?

5

Yeah thats what I meant

I'm hoping that this is the case, but while trying to resolve this issue before I tested one of the servo with another Arduino board which didn't respond, leading me to believe now that all the components could be broken

6

Those little smt 7805's have a nasty habit of failing shorted, esp to 2x overvoltage. If you connect via usb do you have any leds even flicker?

7

Yes, at the time I couldn't figure out what went wrong but I remembered the LEDs still flickering

8

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