How to add Next and Previous Button with Android's headset/earphones?

[sr13579]

I tried to figure out how to add different functionality with headset controller. So far I found how to make signals for volume up and down and play/pause. Now I want to add two switch which can do the next and previous operations. How am I supposed to do that?

 

[kubeek]

How about this? https://source.android.com/devices/accessories/headset/plug-headset-spec

 

[sr13579]

How about this? https://source.android.com/devices/accessories/headset/plug-headset-spec

I need a button. I don't want to press the same button for 2 times.

 

[Daveychef]

I just checked kubeeks link above and if you scroll down you'll see how to set out the circuit

so you need a 240 a 470 and a 135 ohm resistor and 4 buttons by the looks of it.

 

[sr13579]

I just checked kubeeks link above and if you scroll down you'll see how to set out the circuitView attachment 115013so you need a 240 a 470 and a 135 ohm resistor and 4 buttons by the looks of it.

This has no function for previous and next button.

 

[kubeek]

Well, the android specification says you can only get a next button, and that with a double click (that can be arranged). How do you expect to get a previous button when the specification does not support it? Do you have a set of hedphones that can do that?

 

[rjenkinsgb]

It's only possible if you use remote commands over Bluetooth - something that uses the AVRCP profile.
The "wired" remote simply does not support more than very basic functions.