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Questions tagged [led-strip]

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2 votes
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Can the Blink class be used on a 5v to 240v relay?

I have found the following code and it works fine on a breadboard controlling small LEDs but I want it to work with LED strip lighting with external 240v transformers. We have built the circuit using ...
Zed's user avatar
  • 21
2 votes
0 answers
78 views

My LED display fails with MSGEQ7 output stuck

I have an Arduino setup with a pro-mini, a MSGEQ7, and a auto-gain mic. Even if I remove the audio input to the MSGEQ7 remains the same in the 890s (out of 1024). It's the same on each of two new ...
mystack's user avatar
  • 21
2 votes
0 answers
250 views

How to test continuity on signal wire?

I’m reassembling an LED strip, SK6812, that I had cut into smaller lengths. I don’t have a lot of faith in the connectors I’m using or my ability to solder, so I’d like to test it before I put power ...
Johnny Rollerfeet's user avatar
2 votes
0 answers
75 views

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 ...
CodeHard's user avatar
1 vote
0 answers
56 views

How to change between loops? IR Remote + led strip

#include <IRremote.h> #include <Adafruit_NeoPixel.h> #define LED_PIN 7 // define the LED strip data pin #define LED_COUNT 150 // define the number of LEDs in the strip Adafruit_NeoPixel ...
Martin's user avatar
  • 11
1 vote
0 answers
206 views

FastLED changing colour at holding state

Basically make a code to guide users through a box breathing exercise (breath in for 4 seconds, hold for 4, release for 4, hold again for 4, repeat) to help relax them. Right now my code is running ...
entirelyreverse's user avatar
1 vote
0 answers
158 views

xQueueGenericReceive error on ESP32 (using FastLED which relies on FreeRTOS) for adapted MeteorRain LED animation

I'm trying to adapt the MeteorRain animation from Tweaking4All to work on segments of my light string (vs using the entire string) and I'm getting an error in FastLED.show() (on a line that is used ...
Johnny Rollerfeet's user avatar
1 vote
0 answers
385 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 ...
Thomas PomTom Steel's user avatar
1 vote
0 answers
362 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 ...
Fuxi's user avatar
  • 111
1 vote
0 answers
1k 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 ...
Gianlo's user avatar
  • 11
1 vote
0 answers
1k 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. ...
Reese Houseknecht's user avatar
1 vote
0 answers
567 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 ...
Niek's user avatar
  • 11
1 vote
0 answers
268 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 ...
Wes Summers's user avatar
1 vote
0 answers
161 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 ...
Angus Comber's user avatar
1 vote
1 answer
123 views

Is this a feasible circuit?

The last couple months I’ve been working on this project, I’m nearing its end and I’m getting really excited! However, this is still pretty new to me and so I was hoping my electrical diagram/...
dhw123's user avatar
  • 11
1 vote
1 answer
334 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 ...
Wes Summers's user avatar
0 votes
0 answers
290 views

WS2812B LEDs start flickering after some time

I've built a WordClock with a NodeMcu and some ws2812b LEDs some time ago and it worked really well for like half a year but now the LEDs are starting to flicker when the WordClock runs longer than ...
Janik's user avatar
  • 41
0 votes
0 answers
459 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 ...
Ursula Das's user avatar
0 votes
1 answer
84 views

Addressable LEDs using SM16704

I've been asked to interface with some LED strips that use SM16704 pixel chips. A site search here doesn't show any mentions of this chip, so I wonder if anyone knows if they're compatible with the ...
Jim Mack's user avatar
  • 235
-1 votes
1 answer
63 views

LED ring with different effects cycling

I need help for my little project. I don't know Arduino so I used ChatGPT to write me the code. After few hours of testing I almost got what I need. The scheme is the following: LED ring, push button ...
Niki's user avatar
  • 1
-1 votes
1 answer
1k 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 ...
Alex G's user avatar
  • 1
-2 votes
1 answer
149 views

Powering LEDs with Arduino uno 5v

I'm working on the sound reactive led lamp as my first project and have slightly different materials to start with. First I'd like to simply learn to power the LED strip. from https://www.youtube.com/...
Ellie S's user avatar