loadbang
Posts: 36
Joined: Mon Aug 13, 2012 4:56 pm

3.5mm remote socket

Sun Apr 03, 2016 11:02 am

Most of my hi-fi gear all have a 3.5mm remote socket, manufacturers from: Naim, Arcam, Denon, Sony, Pure.

Anyone know if it is possible to control these equipment using GPIO? I'm not sure of the specs when it comes to voltages, impedance etc, from a guess it is IR codes.

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Laurens-wuyts
Posts: 716
Joined: Wed Aug 21, 2013 7:35 pm
Location: Belgium
Contact: Website

Re: 3.5mm remote socket

Sun Apr 03, 2016 11:05 am

I think it should be possible using a transistor/mosfet to control the input and LiRC to send the IR codes to a GPIO pin. ;)

Edit: It may be better to use an opto-coupler. :)

Laurens

drgeoff
Posts: 11247
Joined: Wed Jan 25, 2012 6:39 pm

Re: 3.5mm remote socket

Mon Apr 04, 2016 10:09 am

You should be able to reverse engineer the hardware interface by looking at the schematics in the relevant service manual. A lot of those manuals are available on-line if you search. You don't need one for your exact model as the manufacturers use the same interface spec on all their models.
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