Hi Tony,
if you look at the pinout you have posted, you will see that using a three pole plug would short the microphone input to the speaker output...
Try to get an appropriate connector...
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Hi Tony,
if you look at the pinout you have posted, you will see that using a three pole plug would short the microphone input to the speaker output...
Try to get an appropriate connector...
Hi Tony,
are you using a 8210 cell phone for your project?
As the three pole plug seems to be used there only.
Do you have a common ground on the phone and your circuit?
Then you should check...
Hi Tony,
as far as I remember from my Nokia phone, the headset connector was a 2,5mm plug with four contacts.
Have you verified this for your phone?
Also I would expect the input signal for the...