hi,
I m new to this. Can any one tell me about 12v, 3A, 5m, 30leds/m, 5050 smd RGB led strip.
My doubt is, When i cut it into pieces each with 3 leds, what is the current and voltage requirement ?
Pls answer me.....
The voltage requirement will remain the same, the current requirement will half if you cut it in half.
It depends on the exact LED strip as to if it is practical to cut it into lumps.
However if you actually have 5050 LEDs taking 3A then that is only 0.6mA per LED which is not enough to light them up so have you got the numbers correct?
Yes I have given the correct numbers.
3A/150 = 20mA, so each LED needs 20mA. Is it right ?
For a strip piece of 3 LEDs, 60mA is required. So I need to have a power supply of 12V, 60mA for each piece.
Is my thought is correct ?
Pls tell me a detailed solution for it.
12v, 3A, 5m, 30leds/m, 5050 smd RGB led strip
So what is the 5050 number?
3A/150 = 20mA, so each LED needs 20mA. Is it right ?
Yes
For a strip piece of 3 LEDs, 60mA is required
Yes
So I need to have a power supply of 12V, 60mA for each piece.
No you can use the same power supply for all pieces connected in parallel.
Pls tell me a detailed solution for it
For what, you haven't said what you want to do. Turn them on / off? Dim them?
Wire them up in a matrix?
Control them in groups or individually?
How you you intend to mount them?
How will they be powered?
I want to arrange 8x8 matrix, each 1x1 contains one rgb piece cut i.e 3 RGB LEDs.
then what is the power supply i have to use for every 1x1 matrix.
You don't use a power supply for every LED, you use one power supply that can handle the current with them all.
So an 8 by 8 matrix, what about the control? Is each LED to be controlled individually or do you want to multiplex them? Is there to be on / off control or do you want to be able to vary the brightness of each LED?
I want to control individual LED, just like
But here i am using 12v LED strip not individual LEDs.
So when I try and look at that video I get
This video contains content from INgrooves, who has blocked it in your country on copyright grounds.
I think you are not understanding even the basics of what I am trying to tell you. You seem to be trying to do something way above your skill level. Using a cut up LED strip is going to bring it's own problems let alone the fact that you don't seem to be able to communicate what you what to do.
Look up and learn about an LED matrix first:-
put - arduino LED matrix - into google you will come up with lots of examples like this one Arduino showing multiplexed LED matrix
Then you need to decide if you are going to use software multiplexing (or scanning) or if you want a chip to do it for you.
Then you have to decide if you want to have proportional control of the brightness of every LED. If it is a yes then it makes the project much harder.
Finally when you know what you want you have to figure out how to fit that into the parts you have and tackle the 12V problem.
You have a long way to go.
Of course you r correct...
But I know about DMX, strip lights.
Anyway thanks for ur response...
