Questions tagged [led-strip]

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Can't get fastled.h and remoteme.h to work together

I'm trying to make a Google Assistant controlled LED strip, but I'm stuck. I can control the on board LED of the nodemcu with Google Assistant, and I can control a LED strip too, but I can't combine ...
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1answer
2k 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 ...
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1answer
14 views

Pca9685 & WS2818B, 1 Nano

Arduino n00b here. I currently have an Arduino Nano set up to run 6 servos from a PCA9685 board. I'm looking to add 6 switches and 6 LED indicators to switch servo positions. What I'm curious about is ...
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2answers
62 views

First time arduino attempt. 4 switch inputs controlling 8 LED outputs

This is my first venture into Arduino. I am unsure which one to use even for this. As this will be a dedicated unit, and size is a small priority, the smaller the better. Here is more info on the ...
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52 views

WS2811 strip not working on NodeMCU, works fine on Nano

Sorry if this is something simple, but im scratching my head over this for a while and there are a few things that have me super confused. I have two WS2811 strips lighting up my outdoor stairs Both ...
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164 views

Using 4-pin RGB LED strip connector with 3-pin RGB LED strip

Is it possible to use this type of connector down below to connect 2 addressable 5050+WS2812 5V RGB strips with each other? The connector has 4 pins which is probably for 12V 4pin RGB strips. My stip ...
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35 views

ESP-01S + Fastled

I am trying to control a WS2812B Led Strip with my ESP-01S board. It works fine with my ESP32 DevKit board, but the ESP-01S won't do anything :/ I couldn't figure out which 2 GPIO the ESP-01S is using ...
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1answer
60 views

Powering LED Strip at both ends shorts my psu?

I've got a 200 LEDs strip of sk9822's hooked up to a 5V 8A power supply. As expected, at full white, there's considerable voltage drop and the far end of the strip turns from white to amber. I wanted ...
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41 views

WS2812B not fully working with NodeMCUv2 [ESP8266]

I have a problem with my NodeMCU v2 board and my WS2812B led matrix with 256 (32x8) LEDs. The Board cannot be able to turn on the 191th led and stops working after the 190th without changing the ...
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146 views

Using MOSI and MISO pins for multiple devices

For the device I am creating, I am hooking up an apa102 led strip to pins 11 and 13 to control each LED. But I would also like to hookup my NRF receiver to the arduino, but I also use pins 11 and 13. ...
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1answer
225 views

How to connect two LED strips (APA102/SK9822) to Arduino UNO?

So what I am trying to do is to connect two SK9822 LED strips to Arduino UNO. I am a bit confused about how to properly set this up so I can individualy control any led. So obviously 5V should go to ...
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165 views

Connecting multiple led strips in parallel with arduino

I am making a led panel using led strips. Each of the two led strips are 5M long containing 300 LED SMD Striplights. I have cut each of the 2 strips into many small strips of lengths of about 38 cm ...
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1answer
461 views

MIDI keyboard controlled LED strip

My objective is to light a led on a strip corresponding to a keyboard note. I have Arduino Uno with MIDI in module hooked up to a serial port. Piano is hooked with a standart midi cable, Led Strip is ...
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0answers
291 views

FastLED Rainbow Wheel Fade on an 8 Pin RGB Matrix

So, I have an RGB matrix (using PL9823 LEDs) that's 32 x 8 that I'm trying to run a circular spinning rainbow pattern across in a continuous loop. Now, there's lots of code online for different ways ...
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189 views

Audio Signal to LED Lights Code Speed Improvement

I wrote this code that inputs audio from a jack (DC offset at 2.5V), performs the fft on a portion of the data, and then outputs a signal to an LED light strip dependent upon which frequency has the ...
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108 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 ...
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161 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 ...
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0answers
142 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 ...