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Questions tagged [led-strip]

The tag has no usage guidance.

0
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0answers
24 views

Arduino Uno and FastLED WS2812B Glitching

I’m using an Arduino Uno and a fastLed WS2812B. I have the leds set up correctly. Every 2 seconds, the lights pause of about a second and display seemingly random colors. Does anyone know what's ...
0
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3answers
59 views

WS2812B LED strip + Arduino First Pixel keeps dying/breaking

I am trying too hook up a WS2812B LED strip to an arduino nano. The current strip consists of 6 pixels, and the whole thing is powered via a 5.26V Pc power supply. The problem is that the first pixel ...
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1answer
35 views

Stacks on arrays on arrays

I am trying to find a "vanilla" way of writing several arrays into one. I spent a lot of time searching for how to do this but everything that comes up is either a tutorial that doesn't cover ...
-1
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0answers
54 views

Flickering issue with powering WS2812B LEDs

Hello I'm having a flickering issue with my WS2812B LEDs, I know that it's obviously something that I have done incorrectly and to rule one possible issue out that it cannot be the Arduino code as it ...
1
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3answers
35 views

Do I need the Ground and 5 V pin connect to Led?

I am building an ambilight. So I bought a 3 pin LED Strip which I power with the USB hub from my TV. Next step is to connect it to the Arduino Nano. Is it OK when I only use the dataport from the ...
0
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1answer
93 views

RGB LED strip 100m [closed]

Hello all, I'm working on RGB LED strip SMD 5050 5m This all setup is working on 12v 2A with about diagram. I want to use same connection with 100m of LED strip using Arduino. Please support ...
1
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0answers
193 views

FastLED fill_rainbow - Unexpected red pixel

I'm using FastLEDs builtin fill_rainbow function for generating a rainbow spectrum on an LED strip. The issue is, I get a random red pixel midway through the yellow region. I've tried it on 3 ...
0
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1answer
28 views

Powering Arduino and LED strips from one adapter

My project has my Arduino controlling 10 led strips. I'm going with a plan by @gre_gor that is posted here: Setting 10 RGB Strips Independently from Single Arduino ...where each strip is controlled by ...
1
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4answers
82 views

for() loop doesn't seem to break?

So I'm quite new to the whole Arduino coding but constructed a sketch that does work, but I think it doesn't work properly. So I'd love to get some advice on how to improve it. This script is ...
0
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1answer
92 views

RGB LED strip controlled through PySerial only somewhat functional

I am trying to set up an LED-strip of 30 RGB LEDs (model WS2801). The strip is connected to an Arduino Uno and an external power supply and the goal is to send colors to the arduino using PySerial ...
0
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0answers
141 views

Output multiple arrays to single LED Strip

I'm currently working on a rather large LED display and am wondering if it's possible to output more than one CRGB LED array to a single pin (using offsets; I don't want to write different values to ...
0
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0answers
68 views

How to connect an addressable (ws2811) led-strip with long cable to an adruino?

I set up a light show on my Arduino and it worked perfect when I tested it. I connected the the data line of my 1 meters (3.2ft) of addressable ws2811 ledstrip direct on the breadboard next to the ...
0
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1answer
121 views

Is there any problem in running Arduino logic to 12V LEDs?

I want to run a strip of 300 12V LEDs (Adafruit Neopixels with WS2811), with my Arduino. Is it safe to connect a follows, or is there some "separation" between voltage levels needed? 5V voltage/out ...
2
votes
2answers
60 views

How to measure room light without LEDs interfering?

I'm trying to measure the light in a room with a simple circuit: a phototransistor connected in series with a resistor. An LED strip changes brightness according to the brightness level in the room. ...
1
vote
1answer
179 views

RGB LED strip inverted PWM

This bug/stupidity-of-myself/problem is killing me: I'm have created an RGB strip controller that cycles through the additive-rgb-color spectrum while turning a potentiometer. I have a pot hooked up ...
4
votes
2answers
102 views

FastLed LED Strip Output Checksum

I am wondering if anyone has ever connected the output of their LED strip back to the Arduino to read and make sure the strip is functioning correctly, kinda like checksum functionality. I am using ...
3
votes
2answers
544 views

Setting 10 RGB Strips Independently from Single Arduino

I want to control 10 different 12V RGB LED strips independently from a single Arduino. As a clarification - I've setup a bunch of NeoPixels and understand how to wire and control them independently. ...
0
votes
1answer
407 views

RGB led strip is too dim

I'm following this tutorial to build an Arduino powered RGB led strip controller but I'm facing two problems: When I use digitalOutput the lights are too dim. When I use PWM the leds change so ...
1
vote
3answers
1k views

Control multiple WS2812B strips with different leds count

First of all, my English is not that good so sorry if I made any mistake. I'm using the WS2812FX, an awesome WS2812 effect library base on Adafruit NeoPixel library to make a small controller for the ...
0
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0answers
66 views

Lighting up long led strip no longer works when my code grows

I have a 144 LED strip - Adafruit NeoPixel Digital RGB LED Strip 144 LED, link here: https://www.adafruit.com/product/1507 If I create a simple project, eg turning pixels on off from the serial ...
1
vote
0answers
123 views

Run 5V LED Matrix and LED Strip on one Arduino [closed]

I am fairly new to the Arduino community but have electronics and programming experience. I was able to connect and run a 5V RGB 8x32 LED matrix on my Arduino displaying some running text. Now I would ...
0
votes
1answer
41 views

RGB LED strip green LEDs cannot be dimmed to less than 50%

I have an RGB LED strip which I want to control with my arduino uno, everything works fine, except for the green LEDs. They cannot be dimmed to less than 50%, because they will simply turn off. I ...
0
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2answers
102 views

Attiny13 project with leds and electret microphone

I want to make a project similar to this Turn Signal Biking Jacket . But, instead of using Arduino Lilypad I want to use an 8 pin attiny13A-SH and want to use one electret microphone instead of the ...
0
votes
1answer
919 views

Connect optocoupler 4N35 to Arduino Uno to control LED light strips

I want to use an Arduino Uno to control the LED light strips, based on the input signal from a robot controller. The robot controller sends a digital signal with "HIGH" of 24 V and "LOW" of 0 V. I ...
1
vote
1answer
454 views

Do I have to wire up my WS2812 LED strip in “series”, if I want to address each LED individually?

Let's assume I want to make an asterisk (*) out of LED strips. I want to control each leg individually, while still being connected to only one GPIO pin. The layout I had in mind, looks like this: ...
-1
votes
2answers
134 views

How to identify RGBW LED pins? [closed]

I have a RGBW LED but I don't know how to identify the negative and the colors pins. I tried different combinations with an Arduino Uno but it never produce light. I never used it so I am not sure ...
2
votes
1answer
704 views

Control LED strip IR controller using Arduino

Is it possible to connect to one of these, which run at 12v, to turn on the LED strip using an ESP8266? It doesn't matter if it's an Arduino or the ESP8266, both should be able to do this. The board ...