hey guys
Love the forum and am attempting my first Arduino project
I'm trying to create an led Tunnel. it's about 16 m (50ft), Long
I know I need ws2812b addressable led strips a 5-volt power supply And an Arduino. and the Fast Led Library
I don't know which model to buy or what power supply to get. any help would be greatly appreciated.
I have included a pic of what I'm trying to build for reference
The maximum current per led (when set to white) is usually 60mA 0.06 Amps so your power supply needs to handle that
You may want to use multiple power supplies and in any case you'll need to supply power to each end of a long LED strip, and you may need to power them in the middle. With multiple strips you can daisy-chain the data line but each strip needs it's own connection(s) to the power supply.
amazing! so the Arduino Uno will work to program the lights?
and how many led strips can i run to that brain? because I'm having two separate led strips(both sides of the tunnel.
Thanks!
Audreamo:
amazing! so the Arduino Uno will work to program the lights?
Depends.
You might need a different board with more memory for long strips and/or more patterns.
16m of 30LEDs/m strip could work. 16m of 60LEDs/m might not.
Leo..
Audreamo:
amazing! so the Arduino Uno will work to program the lights?
and how many led strips can i run to that brain? because I'm having two separate led strips(both sides of the tunnel.Thanks!
Those are awfully bright lights. Are you sure they are even LEDs?
As Wawa said, the UNO probably doesn't have enough RAM for that many lights. Plan on 3-bytes of RAM per LED.
I would use 12-Volt LEDs because there is less voltage drop over the length of the string.
The WS2811 12-Volt LEDs are the least expensive but you have one LED driver for three LEDs.
You might also consider the WS2812 LED Strings where the LEDs are 4-inches apart.
Lights in the tunnel on that image are quite certainly not single LEDs. Can still be LED lighting of course.
An Uno/Nano can do about 500 LEDs, that's 3/4 of the memory, leaving 1/4 to do the work. A Mega will be able to address a lot more, but refresh rates start to suffer; at about 1,000 LEDs you can't do more than 25 fps, not counting the time needed for calculating the next frame.
what type of lighting do you think they have on there?
Most likely just RGB LED bulbs. Of the high power kind. Probably individually addressable. Seen them in the shops for many years now, for colourful home lighting, typically with some form of wireless control.
