Posted at 2022-04-20 by @gfwilliams

I'm afraid we'd need more information... Have you checked with NRF Connect to ensure that the ESP32 is actually advertising the right stuff?

If so, NRF.findDevices/requestDevice/setScan should all return an object that contains the BLE advertising data from a BLE device - things like service data should be decoded automatically - check the reference: http://www.espruino.com/Reference#l_NRF_findDevices