Electronics > Beginners

Control two circuits with one switch

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24ariel3:
well the remote controller was only an example my question is a general one assume we have two different systems is it possible to control one of the systems by controlling the other system.

Another example can be controlling a BT receiver from car's stereo system, pressing 'next' on the stereo system will 'press' next on the BT receiver and will skip a song.

Microcontroller/arduino may be needed but I'm not sure yet how to it

Karlo_Moharic:

--- Quote from: 24ariel3 on October 27, 2018, 12:58:15 pm ---well the remote controller was only an example my question is a general one assume we have two different systems is it possible to control one of the systems by controlling the other system.

Another example can be controlling a BT receiver from car's stereo system, pressing 'next' on the stereo system will 'press' next on the BT receiver and will skip a song.

Microcontroller/arduino may be needed but I'm not sure yet how to it

--- End quote ---

In that case your question is too general to be given a specific answer.

24ariel3:

--- Quote from: Karlo_Moharic on October 27, 2018, 01:11:04 pm ---
--- Quote from: 24ariel3 on October 27, 2018, 12:58:15 pm ---well the remote controller was only an example my question is a general one assume we have two different systems is it possible to control one of the systems by controlling the other system.

Another example can be controlling a BT receiver from car's stereo system, pressing 'next' on the stereo system will 'press' next on the BT receiver and will skip a song.

Microcontroller/arduino may be needed but I'm not sure yet how to it

--- End quote ---

In that case your question is too general to be given a specific answer.

--- End quote ---

Ok. let's focus on my last example it is closer to my actual problem.

can we control a BT receiver from car's stereo system, pressing 'next' on the stereo system will 'press' next on the BT receiver and will skip a song.

Karlo_Moharic:
Give me the exact model & make of both your car radio and BT receiver.

spec:
+ 24ariel3

Part of your schematic from reply #8 is reproduced below. When SW2 is open would a current, Iq, of 100uA be acceptable?

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