Questions tagged [neopixel]
The WS2812 Integrated Light Source from Adafruit.
103 questions
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Controlling UCS2904 LED flood with Neopixel library
I'm attempting to control one of these UCS2904 floodlights using the Neopixel library; according to the chip documentation it uses 800khz and RGBW ordering, both of which are set in my Arduino code ...
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Adafruit_NeoMatrix / Adafruit_GFX / Print class - how does printing text work here
I am entirely new to Arduino and have not coded in C/C++ for quite a few years. I'm looking through a NeoMatrix library which extends upon NeoPixel class. That class extends Adafruit_GFX class which ...
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strip.clear() is not clearing/turning off the NeoPixel strip after resetting the ESP8266
In the code below which is running on a WEMOS D1 (ESP8266), a NeoPixel strip turns on 1 LED in red which moves left to right and then right to left whilst the board attempts to connect to Wi-Fi in the ...
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WS2812b - Interpolate pixels on neopixel matrix with mask
simplified my goal is to display a transitional Background and some shapes. This shapes are not moving hard rasterized by 1 pixel, more like .1 each cycle. So I need a way to interpolate the movement ...
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Multiple if else statements for distance-triggered LEDs
I have a sketch that calculates simple distance from the device to the nearest preset GPS coordinate (there are 3 in total) and I would like to have LEDs in the neopixel strip light up according to ...
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Using both FastLED and Webserver without glitches possible?
I'm using an ESP8266 to control a short strip of WS2812 LEDs. I also want some way of remote Control so I'm looking into using a Web UI with the ESPAsyncWebServer library.
However using that Webserver ...
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How to smooth transition to another color NEOPIXELS
I am working on a led strip project and was looking for ways to smooth transition from color to another. Problem is my current method is not so good.
#include <Adafruit_NeoPixel.h>
#define ...
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Modifying the neopixel rainbow function to work with 4pins
So my setup is i have strips that is separated into 4 pins and would like to modify this rainbow function from the neopixel so that it will work on 4 separate strip that are on 4 separate pins. I ...
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How can I make my code Thread-Safe?
So I made a post yesterday running into an issue on my ESP32 using both cores on the microcontroller (with wifi enabled, incase that is important).
I'm using both cores to control two Neopixel strips ...
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How to use 5v and 12v addressable led strip together
Hi guys I’m new to this forum and also not much experience about led lights question already asked but didn’t get any detailed answer I want to know can I provide working data signal to 2 different 5v ...
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two adafruit neopixel loops
i'm making a device that's kind of based on Russian roulette.
I have 5 LED's that are normally white, and when you press the button one of the LED's is marked red.
After some tinkering I figured out ...
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Unexpected and incorrect HEX codes coming from IR remote, but only in second function..?
Hello:) I'm working on a lil project with some NeoPixels being controlled by an IR remote, and with there being multiple strips, I felt it would be best to first select the desired strip, and then the ...
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Reading from EEPROM and writing to addressable LED with limited connections
UPDATE
Clock speed code has been tweaked as per the suggestion from @timemage due to inability for Wire library to reduce to below 30304Hz. Unfortunately problems still persist:
Nothing printed out to ...
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How can I operate the leds and neopixel strips together (at the same time)?
Here's the code I wrote:
#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
#include <avr/power.h> // Required for 16 MHz Adafruit Trinket
#endif
int latchPin = 8;
int clockPin = 12;
int ...
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ESP32 light strips showing incorrect colours
I bought some individually addressable LED strips (a large reel). To keep the cost down they are WS2811 and it's one chip per 6 leds. I don't know the cheapness or LED styl makes any difference to the ...
