I still can't understand how cURL can help me send an http GET and receive a response throught BLE.

Thanks for your reply but I saw cURL and noticed that it is only a tool for coding any data as a URL and I don't see how it helps reaching web pages through BLE

I want to connect my esp32 to my android on which I have enabled bluetooth tethering enabled it's 4G data. The problem is that the HTTP client on esp32 needs a wifi client but I don't want to use wifi due to power inefficiency. Is there any HTTP library that could use GET method using the internet ...

The ESP32 I2S peripheral actually can do PDM to PCM decoding in hardware. I have no idea if that functionality is exposed in Arduino libraries, though.

Is there any other way to use the PDM to PCM decoding in other frameworks?

Hello!
I have an ICS-41350 MEMS microphone with PDM output and a project to record and play the sound with an ESP32 mcu board. There are two main parts: 1.recording from mic and getting data in pdm format 2.proccessing the audio and and sending it to DAC.
for the first I'm gonna use I2S.h library in ...