Arduino project random reset and stopped working

Dear All,

I am new this arduino forum.And I have a problem for my arduino project.

I completed 3 pc ds18b20, 1pc dht22,1 pc 20x4 lcd and 1 pc sim800l project with arduino uno. And this project worked healthy for almost 20 days. But for the 2 days, it random reset itself and stopped working.

By the way ı powered my arduino with usb charger(5v 2A) adaptors and powered my lcd with external 5v adaptors.

could you please precious comments with me ?

Best Ragards

Thank you so much

Good Luck

I have a problem for my arduino project

Not THE Arduino project? Then, why did you post here?

You haven't posted any code. That could be the problem.

Thanks your comment.

As ı already said ı have problem in my arduino project.ı would share code but ı dont know what is the problem. And my project has worked for 20 days.But suddenly ı have faced paused issue.

ıf you want ı can share my code.

Generally, what is the reason of pause of arduino suddenly?

Thanks again.

Generally, what is the reason of pause of arduino suddenly?

For projects using GSM devices, the reason is usually unrealistic expectations about the reliability of the hardware and its ability to stay connected to a network.

I am using sim800l. And ı powered it with arduino. But ı read datasheet of sim800 , it writes, average voltage must be 4,2 volt.

Do you think , does this situation effect that paused of arduino suddenly?

Thanks