Hi, I have this arduino kit and I would like to connect these leds, knows how to do it, what power will I need and how to connect this power?
EDIT: these leds is WS2812B-ECO Black, IP30 No-Waterproof, 30LED 5m.
The page you linked to for the LEDs has diagrams for connections!
yes, but it doesn't explain everything
Like what? It looks complete to me.
You connect Gnd and Signal to the Arduino.
You connect 5V and Gnd to the power supply.
Plan on 60mA/LED. Count 'em and do the math.
Will probably want to connect 5V/Gnd to both ends, and perhaps in the middle of the strip as well.
Look up the FastLed.h library and learn how to use it. I've only done very little, turn 44 LEDs on, off, and all the same color.
Adafruit Neopixel.h is another library you can use.
I don't quite understand how or where to count this because I'm totally new to this
You don't know how to count LEDs?
If this is the case the product description TELLS YOU that you have 5 meters with 30 LEDs per meter, thus 150 LEDs.
At FULL brightness you would need a MINIMUM of a 10 Amp 5V power supply.
tysm
Well that diagram is wrong for starters because it shows the 5 V and not the ground connected to one end of the first strip.
You do need a substantial cable - 2 mm2 at least - running alongside the strips (the two should not be separated significantly) and tapping power into both ends of every 5 metre strip and given 60 LEDs per metre or 3 Amps for 60 LEDs at full white, then you should tap 5 V - and always the ground of course - into the middle of each strip as well as the foils on the strips will drop significant voltage under that condition.
You certainly need to connect the "Data in" and ground of the first strip to your Arduino. When you have the necessary 5 V regulated power supply for the number of LEDs you are using, you can also connect the 5 V back along with the data and ground wire, to the "5V" pin on your Arduino to power it but only when you are not connecting it to the PC via USB for programming.
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