Fake or legit?

MRamone
Posts: 13
Joined: Fri Jan 27, 2023 6:56 am

Fake or legit?

Postby MRamone » Tue Mar 07, 2023 7:50 am

Hi,
I have been using wrovers from a reputable distributor. Yesterday I received some new wrover E from a "not so well known" source. The front is very similar, just the size of the letters is a bit different, but was called strongly my attention is the back. The "reputable" seller boards (picture, left) have a lot of visible vías, while the new boards have much less (picture right). My question is, fake or legit?
Thanks for your comments.
IMG_20230307_083532.jpg
IMG_20230307_083532.jpg (1.56 MiB) Viewed 2695 times

ESP_LJH
Posts: 387
Joined: Tue May 18, 2021 9:21 am

Re: Fake or legit?

Postby ESP_LJH » Tue Mar 07, 2023 11:53 am

It should be due to different thickness of silkscreen layer.

MRamone
Posts: 13
Joined: Fri Jan 27, 2023 6:56 am

Re: Fake or legit?

Postby MRamone » Tue Mar 07, 2023 2:33 pm

ESP_LJH wrote:
Tue Mar 07, 2023 11:53 am
It should be due to different thickness of silkscreen layer.
So i understand that it might be legit then?

ESP_Sprite
Posts: 9764
Joined: Thu Nov 26, 2015 4:08 am

Re: Fake or legit?

Postby ESP_Sprite » Wed Mar 08, 2023 12:40 am

Looks like a different PCB manuf but the same module. One uses 'open' vias, the other uses plated-over vias. (You can still see where the vias are because they leave slight 'bumps' in the copper.)

ESP_LJH
Posts: 387
Joined: Tue May 18, 2021 9:21 am

Re: Fake or legit?

Postby ESP_LJH » Wed Mar 08, 2023 2:16 am

Yes, it should be legit, and they should be manufactured by different factory.

MRamone
Posts: 13
Joined: Fri Jan 27, 2023 6:56 am

Re: Fake or legit?

Postby MRamone » Wed Mar 08, 2023 5:23 am

Thank you all, much appreciated.

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