Electret microphone breakout

Other Miscellaneous
1

Hi ,

How do I connect the Electret micorphone breakout’s +, - and sound to a TRS jack stick?

Best regards

torben

2

There’s no set way to do this so you’re free to come up with your own standard but usually the sleeve is ground, the ring is positive and the tip is signal.

3

Hi TS-Chris,

Thank you. I will try that.

torben

4

Hi TS-Chris,

Actually it is the receptacle that determines the connections? I am using a SIM900 phone.

torben

5

Unfortunately I have no idea if our product will work with a SIM900, you’d need to consult with whoever makes that to find out if it will work and what the pinout is. If I had to guess, it’s probably designed to work with a standard computer microphone and you can get those at a computer store or a place like Best Buy. I’d try that first, it’s probably less expensive than connecting our product as well.

6

Hi TS-Chris,

I have connected a TRS jack (which I think was intended as a sterio jack - Tip and Sleeve as one channel and Ring and Sleeve as the other) to the IN-side of the amplifier and the OUT-side to the loudspeaker. It works in principle: I can hear the caller’s voice rather weakly. Unfortunately I have a RING-tone that is rather loud and which I cannot control (with AT+CRSL).

I thought that if I put in a potentiometer and increased the gain to match the RING-tone I could get them both at a reasonable level using the potentiometer.

Does that sound right?

torben

7

I’m afraid I don’t have any recommendations for you as I’m not familiar with the SIM900.

I recommend asking the manufacturer for assistance.