- Fri Apr 02, 2010 9:50 am
#97630
Hi,
I am trying to use this TRRS plug (4 connectors) to send my signal to a smartphone.
When microphone connected directly to the plug, Android on smartphone recognizes it as a headset.
When I disconnect microphone and supply my own PWN signal and ground, Android says it is a headphone.
How can I mimic a microphone connected while supplying my generated signal instead of microphone's?
UPDATE: I've noticed that mic and ground lines have resistance of 1K-1.5K depending on a headset or mic hardware, and I tried to
mimic that by placing 0.8K resistor connecting mic and ground, but still my setup seen as 'Headphones' instead of a headset.
I am trying to use this TRRS plug (4 connectors) to send my signal to a smartphone.
When microphone connected directly to the plug, Android on smartphone recognizes it as a headset.
When I disconnect microphone and supply my own PWN signal and ground, Android says it is a headphone.
How can I mimic a microphone connected while supplying my generated signal instead of microphone's?
UPDATE: I've noticed that mic and ground lines have resistance of 1K-1.5K depending on a headset or mic hardware, and I tried to
mimic that by placing 0.8K resistor connecting mic and ground, but still my setup seen as 'Headphones' instead of a headset.