I understand that the BC127 can be directly connected to a microphone and 32ohm speakers.
I wish to connect the BC127 to a wired headset, using a 4-contacts 3.5mm PL audio jack with the following pinout:
1- TIP (Right Speaker Out)
2- Ring1 (Left Speaker Out)
3- Ring 2 (Common GND for both speakers and microphone)
4- Sleeve (Microphone in)
First question - Microphone connection:
There is an example how to connect a single microphone to the module:
Is it possible to connect the microphone to both LP/LN and RP/RN inputs? (marked in red lines)
Second question - Speaker outputs:
As mentioned, the speaker connection is a single ended type (both left and right are referenced to GND)
With no use of an external audio amplifier, What is the correct way of connecting both speakers in a single ended configuration?
Is this the right way?