Hi,
I am new to Arduino and in general electronics. I need to build a sensing unit which can acquire signals from 3 microphones, thermometer ,gyro and accelerometer and send theses signals to a Raspberry Pi via bluetooth or wifi or both for analysis. I have no idea what type of Arduino to choose and what other parts (Bluetooth module which can send both audio signal and other type of signals, or amplifier, etc. ) to make sure they are compatible. I really appreciate it if someone can help me with this or recommend some references so I can learn where to start.