Audio and steering wheel adapter EGO Talk <=> Infiniti FX 35 Documentation

0.1

Handsfree adapter for EGO Talk Unit to Infiniti FX 35 -2004

Copyright 2009 Jorgen Birkler jorgen.birkler@gmail.com

Download handsfree-adapter-egotalk-infiniti.tar.gz

overview.sch.small.png

Overview of the EGO Talk unit (the bluetooth handfree module), the adapter and the radio headunit.

In-call Music
steering_wheel.png

Steering wheel controls.

Vol+ (B) Vol Up -
Vol- (B) Vol Down -
Mode (A) - -
Up (C) Answer Next track
Down (C) Reject/Hangup Previous track
Vol- -> Vol+ Vol Up (EGO)
Vol+ -> Vol- Vol Down (EGO)
Mode + Down Switch to music mode Switch to phone mode

The adapters performs the following functions:

Steering wheel signals are two resistor arrays that are shorted by switches on the steering wheel; two signals with voltages between 5V and 0V. See btn_t and wheel_control_t

 * RedLed    GreenLed  Mute  Precond     Buttons     Deduced state    Output              Note
 * --------------------------------------------------------------------------------------------------
 * On        x         On    Inactive    VolUp       In-call          VolUp               Volume up on both car radio and EGO talk
 * On        x         On    Inactive    VolDown     In-call          VolDown             Volume down on both car radio and EGO talk
 * On        x         On    Inactive    Up          In-call          Green (Answer)
 * On        x         On    Inactive    Down        In-call          Red (Reject)
 * On        On        Off   Inactive    Down+Mode   Not in call      Red (Switch)        Switch EGO talk to media mode
 * Off       On        Off   Inactive    Up          Media            Next
 * Off       On        Off   Inactive    Down        Media            Prev
 * Off       On        Off   Inactive                Media            Green (Play/Pause)  (Not mapped)
 * Off       On        Off   Inactive    Down+Mode   Media            Red (Switch)
 * Off       On        Off   Down <0.3s  Up          Media            VolUp               Volume down-up on radio, volume up on EGO talk
 * Off       On        Off   Up <0.3s    Down        Media            VolDown             Volume down-up on radio, volume up on EGO talk
 * Off       Off       x     x           x           Not connected    -                   No output sent to EGO talked
 * 
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