Arduino Mega not being detected in the device manager

Development Tools IDE 1.x
1

After reading a lot of forums, I am not able to solve the problem yet.

The Arduino mega 2560 is not being detected by my laptop that uses windows 7 32 bit but it works fine on my 64 bit PC.

It is not a cable issue or installation problem as I did the exact same installation for bot PC and laptop.

The funny thing is I was using the board to run my 3D printer only a few days back and all of a sudden it simply disconnected from the laptop for o reason. I have been trying to get it working on my laptop but to no avail !. Will reinstalling the windows 7 software help in any way ? that's my last attempt to fix this !

Any help would be extremely useful !

Thanks.

2

Windows reinstall is imo unlikely to fix it. Does the usb port still work? Has the pc been fully power cycled? Do so, if not. Have you tried different ports? Do you get the hardware connected noise?

3

I have another 3d printer that uses the melzi board it connects just fine with the same usb port of the laptop so I am ruling that out. I do not get the hard ware connection noise when i plug it in, but the light on the arduino board does come on..

I have been trying every method available since today morning but nothing seems to be working. Tried reinstalling the drivers on my laptop as well.

I do not think the board is the problem cause it is working on my PC.

Any issues with the laptop that would stop it from working with the arduino ?

What does fully power cycled mean ?.

4

OK so i have been playing around with the arduino for a while now and with a bit of luck there is some progress.

I reinstalled the arduino IDE and the drivers for the 32 bit system.

Now the interesting part is if I connect the arduino to the usb it does not get detected by the device manager.

But if I press the reset button and keep holding it down while it is connected via USB then the com port shows up on the device manager.

The problem is the minute I remove my finger from the reset button the com port disappears and the board is not detectable.

Any Idea what I should be doing ? I want the board to work without having to keep holding down the reset button.

Thanks for the help !!

5

Also posted at:
https://arduino.stackexchange.com/q/49264
If you're going to do that then please be considerate enough to add links to the other places you cross posted. This will let us avoid wasting time due to duplicate effort and also help others who have the same questions and find your post to discover all the relevant information. When you post links please always use the chain links icon on the toolbar to make them clickable.

6

Sorry Was not aware of that,

I am new to the forums, joined stack exchange today and posting on the Arduino forum for the first time.

Will remember to do that.

7

hussainsail2002:
OK so i have been playing around with the arduino for a while now and with a bit of luck there is some progress.

I reinstalled the arduino IDE and the drivers for the 32 bit system.

Now the interesting part is if I connect the arduino to the usb it does not get detected by the device manager.

But if I press the reset button and keep holding it down while it is connected via USB then the com port shows up on the device manager.

The problem is the minute I remove my finger from the reset button the com port disappears and the board is not detectable.

Any Idea what I should be doing ? I want the board to work without having to keep holding down the reset button.

Thanks for the help !!

That is extremely weird.

On the other system, can you actually upload code to it and have the code work? Test that. When connected to the other system, does anything get hot?

I am concerned for the state of the hardware.

8

Yes I managed to upload the marlin firmware through my PC and also checked it out by connecting to the board via pronterface which is the interface software for 3D printers, it seems to work fine.

I bought another cheap arduino clone this morning to check if the problem is with my laptop, but the cheap clone seems to work fine !

https://arduino.stackexchange.com/questions/49264/arduino-mega-not-detecting-in-device-manager-for-laptop?noredirect=1#comment98936_49264

I have also been posting about this on the above link, no luck so far.

Thanks !