Hi, I have an ESP32 One (https://www.waveshare.com/wiki/ESP32_One) with an inbuilt microphone and I would like to have an application that measures noise and sends it via wifi to a server or another computer. The application should either measure the noise in absolute values or in decibel and take a...

Hi , I am stuck in sending an mp3 file from mobile to ESP32 .The idea is to send a mp3 file to the flash of ESP32 using BLE and that file will be stored from the flash to some other external flash memory connected using SPI. If you have any idea about doing this or let me know.
Thank you in advance.