I'm not sure if it will have certification yet (the Pico and Espruino do though - CE and RoHS)... I think it depends how popular it is - if nobody buys it I might not recoup the costs.
I'll have a word with Seeed too - the ESP8266 module will have certification, so it may be the radio itself doesn't need testing, which might make it a lot easier/cheaper to do.
Very few esp modules do have a ce and rohs certifications.
That's a problem as soon as you want to juild anything commercialy sellable in Europe.
I think ESP-12F is CE/FCC/RoHS certified?
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