Rgb diode rgb controller hookup

[jaslion]

Hi,

 

I'm currently prototyping some backlight 3 emblem prints and wanna hook up 12 3v rgb diodes to it. Did some tests with a arduino and breadboard with power and all was well.

 

Now for simplicity I want to hook all of them up to a generic off the shelf 12v rgb controller with a remote for easy control. However I'm quite confused as to how to do this. My plan is to have all of them in parralell in case one fails. But I'm not sure how to hook this up to a generic rgb controller youd use for a ledstrip and if that could possibly overpower the diodes and kill them.

 

Im a bit strapped for time as I want to have a prototype running this week so its basically gonna be a one shot wonder and I really dont wanna mess things up.

 

My understanding is to just hook up the r,g and b channels all to one wire and split off from that many times. Ground same.

 

Then for 3v have the appropriate resistor that can carry the 420mA and get 12v to 3v and hook that to a wire that will go to all 3 emblems (all house 4 rgb diodes)

 

Fully open for change of plan and recommendations of parts:

 

Currently I have:

A baggy of 3v rgb diodes

12v generic rgb led strip adapter

A bin of small prototyping diodes (imagine all thr stuff youd get for a arduino or raspberry pi)

Wiring

Needed solder equipment, tape, shrinkwraps,...

And 5 days

[Heats with Nvidia]

What type of 3V RGB diodes do you exactly have? If they have an internal resistor, just connect 4 of them in series each and then you basically have a 12V diode. If they don`t have internal resistory, you can only have 3 of them each in series and then a resistor in series for them. Then you need to connect all of these 3 or 4 LED packs in parallel.

[jaslion]

12 minutes ago, Heats with Nvidia said:

What type of 3V RGB diodes do you exactly have? If they have an internal resistor, just connect 4 of them in series each and then you basically have a 12V diode. If they don`t have internal resistory, you can only have 3 of them each in series and then a resistor in series for them. Then you need to connect all of these 3 or 4 LED packs in parallel.

Generic 3.05v 55ma rgb diodes with no internal resistor.

[Heats with Nvidia]

Here you will find a Schematic, that you can use. https://learn.sparkfun.com/tutorials/non-addressable-rgb-led-strip-hookup-guide/all

 

If you want the full brightness, just use 56Ohm resistors. Choose resistors that can withstand at least 0.256W of power, because they will have to dissipate at least 0.157W and its always a good idea, to let your resistors not warm up too much.

[jaslion]

1 hour ago, Heats with Nvidia said:

Here you will find a Schematic, that you can use. https://learn.sparkfun.com/tutorials/non-addressable-rgb-led-strip-hookup-guide/all

 

If you want the full brightness, just use 56Ohm resistors. Choose resistors that can withstand at least 0.256W of power, because they will have to dissipate at least 0.157W and its always a good idea, to let your resistors not warm up too much.

Exactly what I needed thank you!

 

1 hour ago, Heats with Nvidia said:

to let your resistors not warm up too much.

Yup learned that the hard way.