Car led strip

konradgabi · Jun 10, 2019

hi guys , can anyone advice me how many diode i should use for fitting my led strip in my car. i connected via 3 Key 12V~24V Switch DC 8A RF remote control Dimmer LED Wireless Controller and i want also to connect the power from the door switch but it disable the controller . i know that i can use some diode to stop power flow just in one direction, i would appreciate

your help , picture attached

Spoon · Jun 10, 2019

If I understand correctly, wouldn't you be better off wiring the door switch to a relay and using that than put a diode in the circuit?

konradgabi · Jun 10, 2019

Spoon said:
If I understand correctly, wouldn't you be better off wiring the door switch to a relay and using that than put a diode in the circuit?

yes if it is possible , would you let me know what to use ? im not that good with relay , can you recommend what type should i use and how ? maybe you can understand something from my unprofessional wiring diagram

Spoon · Jun 10, 2019

konradgabi said:
yes if it is possible , would you let me know what to use ? im not that good with relay , can you recommend what type should i use and how ? maybe you can understand something from my unprofessional wiring diagram

Maybe something like this.

Spoon · Jun 10, 2019

It's against forum rules to give step-by-step instructions on how to do things.
Just use the relay to switch the power to the dimmer controller.

konradgabi · Jun 11, 2019

Spoon said:
It's against forum rules to give step-by-step instructions on how to do things.
Just use the relay to switch the power to the dimmer controller.

Uderstand the rules Boss

i attached one edited png. can you please have a look and let me know if i'm doing right ? Thank you

Charlie_ · Jun 11, 2019

You will also need to break the outgoing wires from the dimmer unit when switching the lights on using the door.

konradgabi · Jun 11, 2019

it is any electronic part that can do that ? i dont want to use switch , looks ugly

a diode will stop the power get backward to the dimmer unit ? any value for the diode if is possible ? what i'm doing wrong ?
Thank you in advance for your help

Spoon · Jun 11, 2019

The relay contact needs to go on the output of the LED unit.
Also fit a fuse to the power input to the LED unit.

Spoon · Jun 11, 2019

On the relay I showed you the N/O contact numbers are 3 & 5.
Put that in the red +12 Volts line on your original drawing.
Fit a fuse to the power coming into the LED unit.

konradgabi · Jun 14, 2019

i just got the relay , i will folow your instruction , png attached
i will also keep you update with succes rate

im a bit concerned about my lights is full on for few seconds after i close the door and dimming to 0 till is off

Spoon · Jun 14, 2019

Wire your door switch to contact 2 and 0V to contact 1.
Wire contacts 3 to the output of the LED controller (+12v on your original drawing) and contact 5 to the Anode of the diodes (Red line) in your original drawing.
This will switch the +12v line going to the LEDs.
See how that works and let us know.

konradgabi · Jun 15, 2019

ok, i will try to explain a bit better , please excuse my grammar , I'm not British

the led controler it's turn on by remote (please see picture attached) that's meaning to the output is 0V when is turned off by remote controler. it is not better to use input power from the door switch to contact 3 ?and output

contact 5 to the Anode of the diodes
question from noob like me : contact number 3 is to activate relay to send 12V+ to contact 5 I presume ... and the second one is if to contact 1 it should all time to be (-) 0V ?
in this scenarios I can use remote to turn on the led

at any time and also to be turned on when I will open any doors
I know that i'm a pain for you guys , but I can say that I apreciate your advice and I start to learn good things from the best
Thank you and I wish you all a good week end

Spoon · Jun 15, 2019

I understand better now mate.
I thought your initially just wanted to turn the LEDs on only when the door opens and the remote was for the initial setup of the LED light level. That is why I suggested switching the output of the LED controller.