My project is about to make a one way communication. which means i used my phone microphone and lm386 amplifier. Can anyone gave me idea with the code and give opinion with current device implementation.
Between what and what?
How did you connect those?
that will be part of the code,
void setup() {}
void loop() {}
the rest depends on what you want to achieve
the issue is that your red wire is a bit loose and there is a memory overflow on line 42 in your code..
I'm not 100% sure this is the issue, that's only a guess because my crystal ball is still in the dishwasher
joke aside, do yourself a favour and please read How to get the best out of this forum and post accordingly (including code with code tags and necessary documentation for your ask like your exact circuit and power supply, links to components etc).
Your thread is about Bluetooth connection. A connection requires at least two ends otherwise it is not a connection, but only a point in space. Bluetooth, if you remember, is a "pairing" of two devices and they communicate with each other, alternately.
I'm using esp32. Is it possible to done this or i have to change my amplifier ?
so im using #include <BluetoothA2DPSink.h> code. This to make connection from my phone to esp32 and from my phone to open a mic app which download from play store connect it.