The Kenwood protocol part 3

How to get SAAB 95 steering remote to work with the Kenwood protocol

Project completed

PCB build

Just a tiny PCB is needed

including a 7805 with estimated current draw of 20mA

5.1V zener as input protection via 2k resistor (SMD)

IR LED is installed behind

the display

Proof of concept 2

C code v4.0

IR Lightguide viewed in Infrared lighting

Steering wheel connector

Measured in car (blue -cavity 1):

Vol- 1.253V

Vol+ 1.668V

Src 2.072V

Seek + 2.485V

Seek - 2.904V

Nxt 3.313V

No button 4.020V

Engine running gives same result

Project not completed..

time to make PCB

(Part 3)

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