Hello, want to do a project with WS2812B leds. A led of this type consumes 0.018 Ampere and I would like to put 76 and I don't know if the 5 volt output will be able to supply them all and if not, what should I do?
That will be almost 1A total which will exceed the output rating of most controllers (you did not specify what board you are using). If this is just on/off, you would use a relay with a power supply capable of a 1A load.
There are 3 LEDs per pixel.
I use an arduino nano and a power supply by USB C of 1.67A for the card even with that it will not work?
You will need to do something like this:
For reference: How to Control WS2812B Addressable RGB LEDs using Arduino
No it will not.
The maximum current draw for a WS2812B is about 0.056A.
76 of them would need 76 x 0.056A = 4.26A @5V
A 5V, 5Amp supply will be OK
so I have to buy a 5v and 5a power supply and a capacitor
I don't know anything about the quality of the product.
The 5V 5A or 6A model would be good
ok thanks
You need 5V with at-least 5A of current capability.
The voltage needs to be constant and then the actual current will depend on how many LEDs are on at any given time. i.e. With noting connected 5V is present but no current flows.
...I don't trust "cheap stuff" from AliExpress, eBay, or 3rd-party Amazon suppliers, etc. You'll probably be OK but I like to buy from reputable electronics suppliers, and most of what thyey sell is from known-reputable manufacturers. I might cost more, but you get good stuff and usually you get a link to the datasheet or other important documentation.
Here in the U.S., Mouser, Digikey, Jameco, SparkFun, and Adafruit are all good. A lot of electronic manufacturer's buy components from Mouser and Digikey. Mouser doesn't have a minimum order and I buy from them a lot.
ok and the capacitor must also be 5v?
thanks and the capacitor must also be 5v?
Suggest your capacitor be rated at 10v or more.
The value can be 470uF to 1000.
The capacitor should 10V or more
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