Questions tagged [rgb-led]

RGB (Red, Blue and Green) LED (Light Emitting Diode).

Filter by
Sorted by
Tagged with
0
votes
0answers
24 views

Integrating blinking light code and time on/off code

I'm trying to integrate code from one of my projects with another. One is code that blinks some Adafruit Neopixel LED strips at a specific rate and the other is a time on/off circuit here is the code ...
0
votes
1answer
28 views

Connecting a time on/off circuit and my adafruit neopixel light strip

I'm new to programming and hardware so be gentle. I've used this tutorial https://www.instructables.com/id/Arduino-Ultra-Mega-Timers/ to create a time on/off circuit. I'm attempting to connect some ...
1
vote
1answer
32 views

WS2812B are only white on custom board

I recently designed a board for an LED project. I am using WS2812B as the LED, and an ATMEGA328P-AU as the microcontroller. I also am using an arduino nano as my ISP and using "flash with ...
0
votes
0answers
39 views

problem controlling rgb led with one button

I'm trying to make a lamp which quality to change color by pressing a button, pressing once turns on red, pressing again turns on blue and so on, but I also want it to have a light effect in which it ...
0
votes
2answers
46 views

RGB LEd and a push button in TinkerCAD

I'm working on TinkerCAD, I want to design and simulate a circuit in which there are following components. 1. 1 RGB LED 2. 1 Push button 3. 3 Photo-resistors. 4. 1 Arduino board. So the light should ...
-3
votes
1answer
58 views

Controlling the color of an RGB LED using a single push buttton [closed]

I'm working on TinkerCAD, I want to design and simulate a circuit in which there are following components. 1. 1 RGB LED 2. 1 Push button 3. 3 Photo-resistors. 4. 1 Arduino board. So the light should ...
0
votes
1answer
51 views

Trying to draw a bitmap to an LED matrix only draws the left half

I'm EXTREMELY new to Arduino and fairly new to programming as a whole, but I thought it would be fun to try and write a program that draws arbitrary 1-bit bitmaps to an LED matrix using the Adafruit ...
0
votes
0answers
16 views

how to make stepper motor and led run sententiously but independent of each other? [duplicate]

I came across a problem with my code, I want to be able to have a servo motor constantly spin while a few leds blink at random. I already have a code written down but the problem is is that it seems ...
1
vote
1answer
52 views

Bicycle Tail Light project [closed]

For my college course we currently have to carry out a project of our own choice. I chose to make a Tail light system, with strobing indicators, fog-light and brake-light. The lighting uses Neopixel ...
1
vote
1answer
46 views

Why does the LEDs affect Analog Input?

So I'm working for a project to control RGB Led Strip using microphone or sound sensor with Arduino Nano. I'm using 5050 RGB Led Strip around 120 LEDs, and I control them using simple transistor ...
1
vote
1answer
42 views

Designing RGB leds

I am interested in creating a string of ~80 RGB LEDs run on an Arduino Uno. Each LED is to have its own on/off timing and color and the distance from one LED to the next about 4-5 feet. Since I want ...
1
vote
2answers
130 views

7-Segment Display with WS2312B and FastLED

I thought of the idea of using the WS2312B LED strip to drive a custom 7-Segment display. The project will require a large number of these displays, and driving them with a single Arduino (I'm ...
-1
votes
1answer
50 views

Addressable LEDs vs Multiplexing for a Matrix

I would like to building a 8x64 RGB Matrix and connect it to my Arduino. As this form factor does not really exist I would need to build one myself but now I am wondering if I should use addressable ...
0
votes
0answers
212 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 ...
0
votes
1answer
126 views

Arduino Nano Fried on Music Reactive Led Strip

I'm doing a project that involves an Arduino Nano, a sound detection microphone module and a RGB Led strip (individually adressable leds). I also bought an accumulator so I can connect everything ...
0
votes
2answers
51 views

NeoMatrix Button Troubles

I am creating a 20x15 LED Matrix using and Arduino Nano. My goal is to switch between different "scenes," if you will, using 4 buttons (I just need to run different code to make it display something ...
0
votes
0answers
178 views

Arduino-Controlled LED Matrix issues

I am making a 20 x 15 LED matrix, and am having some super annoying problems. I was hoping you all could help me find some answers. It is very important to note that I am following BitLuni's video ...
12
votes
6answers
5k views

Addressable RGB strip works fine individually but cannot set all LEDs to full white

I have a 5 meter strip of 12V digital RGB LEDs. The chip is WS2811 (see photo of IC). There are 50 addresses on the strip. Using the FastLED library, I am able to run the "FirstLight" example that ...
1
vote
1answer
2k views

FastLED library: How can I adjust the brightness of a single pixel on an absolute scale?

I'm using the FastLED library to control a digital RGB LED strip. While this library seems very comprehensive in capability and ease of use, I do not yet see a way to simply set the brightness value ...
-2
votes
1answer
41 views

Can an arduino Uno control led, sound and smoke?

I'm pretty new to this and I've not seen anyone answer this question yet - so I figured I would ask. I have a vape mod that is set up to expel smoke with a trigger. I want to merge this trigger to ...
0
votes
0answers
55 views

Arduino RGB IR Controller -> led always close to white

I use arduino nano. When i use this code the rgb light on the fan is showing the colors right int rossoPin = 11; int verdePin = 12; int bluPin = 10; void setup(){ pinMode(rossoPin, OUTPUT); ...
0
votes
1answer
44 views

LED fader function freezes and becomes unresponsive after a few cycles

My LED controller has a color fader mode that I am making. The controller's loop() function grabs incoming serial data to set the amount of colors, fade speed, mode, and other info then runs the ...
0
votes
0answers
65 views

RGB Matrix flickering every ~5 seconds when paired with SoftwareSerial

I'm running an RGB matrix through an Uno and trying to run it alongside SoftwareSerial so that I can integrate an ESP8266 into things. The trouble is, when I start introducing the SoftwareSerial into ...
3
votes
3answers
631 views

What can I do to increase the amount of LEDs I can power with a pro micro?

I am new to arduino and have a sparkfun pro micro that I'm using to power a one meter (60 pixels) APA 102 strip. I currently power it via USB and have a program that sends lighting instructions to it. ...
0
votes
1answer
244 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 ...
1
vote
2answers
71 views

Arduino is incorrectly reading serial input from C# program

I am trying to create a program to operate my arduino based LED controller. I'm pretty sure that my C# program is outputting to serial port correctly as I double checked the output in Debug.WriteLine()...
1
vote
2answers
359 views

How to read a text file line by line

I am making an LED controller that reads instructions from a text file on my computer. I need to get the arduino to read this text file line by line and put each line into the appropriate variables. I'...
1
vote
1answer
193 views

Join two rgb ledPanel 32x64 in order to get one 64x64 (How to)

Im making a project to make a pixelArt of 64x64 using two 64x32 RGB ledMatrix and Arduino MEGA This is the RGB Panel: https://es.aliexpress.com/item/32904852724.html?spm=a2g0s.9042311.0.0....
-1
votes
1answer
155 views

APA106 random color when power applied

The APA106 RGB LED is usually blue when 5VDC is applied. Sometimes it is a random color when turning the power supply on and off. How to keep it a consistent color when power is applied? Normal: ...
-1
votes
1answer
381 views

How to control 220V RGB Led Strip with Arduino/ESP32 [closed]

I need to control 220V RGB Led strip with Arduino/ESP32-wroom over internet. Single color led is easy (just with a relay), 12V RGB can be done with PWM and maybe external power source. But how can I ...
0
votes
0answers
29 views

MKR1000 disconnecting when hooked up to RGB 16x32 LED Matrix

This tutorial is from 2012, before the MKR1000 existed. The tutorial says the 16x32 LED Matrix panel is compatible with the Arduino Zero, which the MKR1000 is supposedly related to, so I'm thinking I ...
0
votes
0answers
308 views

LED brightness control problem

My first question here. As an example, I'm using https://howtomechatronics.com/tutorials/arduino/how-to-control-ws2812b-individually-addressable-leds-using-arduino/ code to control my lighting, which ...
2
votes
2answers
69 views

RGB LED Mode toggle - Trying to avoid using main loop()

I'd like to start by saying that I have only been dabbling in electronics (not just Arduino) for about 3 days now. I am trying to write a sketch which changes an RGB LED when a push switch is pressed....
-1
votes
2answers
59 views

What type of Arduino to buy

I am doing a project for school to run 462 LEDs in 6 series (77 each) and a stepper motor altogether, I wanna know what model of Arduino I should buy (not so expensive)? I am using individually ...
0
votes
1answer
43 views

RGB LED circuit problem

I have written the following code for RGB LED:- const int RED =11; const int GREEN = 10; const int BLUE= 9; void setup() { pinMode(RED,OUTPUT); pinMode(GREEN,OUTPUT); pinMode(BLUE,OUTPUT); } ...
0
votes
1answer
66 views

Looking for some help with an RGB LED animation

I'm working on a project that is running off of a Sparkfun Pro Micro 5V. I'm trying to accomplish a color rainbow cycle animation which will have a function when triggered to fade the rainbow to black ...
1
vote
1answer
106 views

Unexplainable int behavior in encoder/LED project

I am trying to use a rotary encoder to cycle through the brightest versions of R, G & B. And it works! Red goes to blue just fine. Then G happens. For some reason, the int for green goes ...
0
votes
1answer
56 views

Strange artifact in writing to serial while executing loop

Hope you can see this. https://gist.github.com/DevilWAH/60ad144d2858f53845ac2e80f84bb070 The main file in this is "morse-led-rfid" which is taking reading data of an RFID tag and then displaying ...
0
votes
1answer
49 views

Using LDR and RGB Led to get R,G,B values [closed]

Has anyone tried using a setup of RGB LED directed to cuvette and the LDR on the opposite side? using arduino to and get the RGB values.. Currently having problems with calibration... I was able to ...
-1
votes
2answers
1k views

Strange behaviour with WS2812B RGB LED Strip

I tried to use a RGB LED strip, following a guide. I connected the voltage pin to the Arduino UNO 5v pin, the ground pin to the GRN pin and I used the pin 5 for DIN. I used this image as reference: ...
0
votes
1answer
66 views

Trying to measure change in light levels over time [closed]

I have two LDR's attached to my Arduino Uno and an RGB LED as an output component. The two LDR's are at different offboard heights in order to see the change in light between them. I want to code on ...
0
votes
1answer
719 views

WS2812B only works while I measure the voltage

I'm going crazy, there is clearly something I'm missing here. I have a NodeMCU V3.0 and a 5V LED strip WS2812B with 10 diodes. I tested this first with a 5V 0.3A power supply, only powering 3 diodes, ...
0
votes
0answers
307 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 ...
-1
votes
1answer
61 views

RGB LED lights and Arduino [closed]

I am doing my thesis project which is a kinetic light/sound sculpture. My first step is to learn how to work with RGB LED lights and how to choose them and what other kinds of equipment I need. I ...
0
votes
1answer
136 views

Arduino RGB LED not working all the time?

I was creating an RGB LED System with one 1 RGB LED controlled by an IR Remote. I wanted to assign a button to trigger a mood-light which cycles through the rainbow, and that works fine. But when I ...
0
votes
1answer
138 views

Addressable RGB LED Strip

I am looking to create an addressable RGB LED strip circuit with my NodeMCU v3 Wi-Fi. I am looking at a strip of 150 RGB LEDs, 5 meters long, so 30 LED/m. But I am only going to use about 50 LEDs for ...
0
votes
1answer
94 views

How would I go about powering addressable RGB LED light strip? [Arduino Nano] [closed]

The addressable RGB LED I have is WS2812B. I plan on controlling the LEDs via an Arduino nano. I have a total of 188 LEDs to supply power to. Would I require anything between the addressable RGB LED ...
0
votes
1answer
593 views

FastLED: Can't address led individually

I'm unable to access the first led in my strip with this code: void loop() { leds[0] = CRGB::White; FastLED.show(); delay(100); leds[0] = CRGB::Black; FastLED.show(); delay(100); } Instead, it ...
0
votes
1answer
166 views

Arduino with using Adafruit NeoPixel library set one color, fade random pixels in strip on and off [closed]

So I am trying to get random pixels to fade on and off at one color. I want to create a power moving inside an item effect. I have several examples of the whole strip fading in and out, but cant seem ...
0
votes
1answer
555 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 ...