Certification requirements vary based on the nature of your product and the markets you intend to target. You may want to contact a specialized laboratory to guide you in this process.

Have you looked at the Espressif Audio Development Framework? All decoders are available there, including MP3
https://github.com/espressif/esp-adf

I have sent a PM to the both of you.

Would it be possible that the fireplace control is 4-20mA and not voltage based?

Would it be possible that the fireplace control is 4-20mA and not voltage based?

Logically, longevity refers to both chips and modules, you may want to get a formal statement by asking to Espressif.

ESP32-S2-SOLO-2 might be a good candidate, there are other modules that you can use depending on your specs.

The longevity commitment page is https://www.espressif.com/en/products/longevity-commitment For your second question, it depends on the requirements of your application, you can describe in the thread and/or use the selector tool available at https://products.espressif.com/#/product-selector?languag...

Problem solved, the ESP32-WROVER-E works perfectly.

Apart from the topic, for the next revision of the pcb, you may want to update the module to the current revision, which is the the ESP32-WROOM-32E