Hi Joedonn,
WROVER-B is an upgraded version of WROVER, we would recommend WROVER-B for new designs. And we have no plan to add new certifications for WROVER at the moment.

Please write an email to sales@espressif.com to discuss with our business team, if WROVER-B can't be used in your design. Thanks.

It should be easy to buy samples from Mouser.

Yes, as long as the product is in mass production.

Hi Possan, There is no licensing fee involved in Espressif product. Espressif don't charge any licensing fee from our users. And yes, we are aware of some of the patents held by some companies, who sent out letters to customers requesting patent royalties. Here are the facts about these companies: 1...