This may help.
A Thread Starter abc77 Joined May 10, 2017 59 Jun 9, 2017 #22 nobody pointed out that the audio female socket is not for microphone(TRRS) connection. it is wrong. also nobody replied on the split power supply, just commented that it is wrong
nobody pointed out that the audio female socket is not for microphone(TRRS) connection. it is wrong. also nobody replied on the split power supply, just commented that it is wrong