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Questions tagged [led-strip]

LED Strips come in two designs, both on Flex Printed Circuits (FPC). 1. Simple LED + Resistor versions, typically with multiple parallel segments of three LEDs with matching resistors. 2. Digitally controllable with embedded controllers. Data is wired in series while power is paralleled by segments or pixels. Both have different and similar application challenges.

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Find out safe current for led strip in series [closed]

I have some huge led stripes and I want to give them a second life by adapting a constant current driver. The data I have about the old driver it's the output voltage was around 150VDC per channel. ...
Broom Stick's user avatar
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118 views

Using a 24V dimmer with 12V

I have a Paulmann 70975 24V LED touch dimmer that I want to use with 12V LEDs. The input voltage is provided by a MeanWell LPV-60-12 12V 5A power supply. The consumer is a 12V 2835 white LED stripe of ...
redspider's user avatar
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3 answers
72 views

Trying to T-tap wires of different gauges. Do these t-connectors even exist?

I am new to wiring and need help with a new project. I have a big box. On two sides of the box are 40 LED light strips; each light strip with a positive and negative wire. Theres a total of 80 LED ...
ANONYMOUSE's user avatar
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28 views

Designing an LED strip driver [duplicate]

I have a pretty long (5 meters) 24 V LED strip with four connectors for RGB and ground and lets say it needs 300 mA. I need this circuit to be controlled by a microcontroller. I've looked around ...
cr1tical1's user avatar
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1 answer
52 views

String of 5 WS2813B LEDs flashing White on power up or reset

I'm using an ESP12 to drive 5 WS2813b RGB LEDs, in the code I use the Fastled library and switch off the LEDS straight away but there's always a white flash of all the LEDs on power-up and reset (the ...
user avatar
6 votes
4 answers
345 views

Is there a canonical way to signal WS2811/2812 LED strip?

The WS2811/2812 protocol is well-defined and hence the chip now seems to dominate addressable strip lighting products. People have managed to use SPI and UART to control it, and someone even did it ...
Milind R's user avatar
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Design RGB Strip with WS2813 on 24 V?

I am in the process of designing a PCB with RGB LED's. I wanna control them with NeoPixel. And it has to be supplied with 24 V. Right now for reference (see picture) I have a LED strip with segments ...
Jesper Egsgaard Nielsen's user avatar
1 vote
1 answer
79 views

Raspberry Pi Pico, ensuring the circuit diagram is correct

First of all, thank you so much for your interest in my question. Introduction The following is a schematic diagram I drew up to represent my Raspberry Pi Pico WH - LED lamp project. I am controlling ...
Anjana Silva's user avatar
3 votes
3 answers
122 views

Flickering on LED strips routed through buck converter and slip ring

I am building a totem for a music festival that consists of three rotating rings covered in addressable LED strips. Each layer is connected to the one inside it via a servo on one side and an ...
Ben Bartlett's user avatar
1 vote
1 answer
125 views

Individually Addressable LED overheated

Update (19.3.24) I checked the LED string with a multimeter. The + and - wire of the burned LEDs are connected, whereas the new LEDs do not have a connection between the + and - wires. I checked the ...
TLB's user avatar
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Adding an Additional Power Source for the LED Strip Connected to the Television

I want to turn on a long LED strip when the TV is turned on. I thought of doing this using the TV's USB port. The problem is that the voltage from the TV's USB port is very low and cannot support such ...
Yoni's user avatar
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Sporadic flickering for (very) long WS2812 strips

I haven't found any information (almost anywhere, searching for weeks already) that goes beyond my research. I hope someone has a tip/idea/hint. Maybe my research helps others too. Connected are 5120 ...
cakepi's user avatar
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1 answer
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LED strip light won't work... sorta

Making a lamp using a DPDT SPDT ON-OFF-ON toggle. ON1 is the lamp. No issues there. ON2 is going to be an LED strip in the base to function as a nightlight. The single-color LED strip is what's ...
Dascalargo's user avatar
1 vote
1 answer
67 views

RGB LEDs indvidual brightness control [closed]

i want to make RGB LEDs panel using https://www.lcsc.com/product-detail/Light-Emitting-Diodes-LED_TCWIN-TC5050RGBF08-3CJH-P35C_C784539.html RGB LEDs. I will put 100 LEDs in tha panel and want to ...
Zunuran Nasrullah's user avatar
2 votes
1 answer
124 views

Reverse engineer BLE LED strip protocol

I am trying to create a custom application to control some Bluetooth-controlled LED strips. That is, I would like to reverse engineer how they are controlled without having any datasheet -- I'll ...
Quazgaa's user avatar
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1 answer
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Connecting multiple loads in self-balancing parallel [closed]

I have three (or 'n', where n=3 at the moment) large LED panels that I want to run in parallel. As we know (or should have known before the 'royal we' actually tried it!), just wiring them together in ...
jackisquizzical's user avatar
5 votes
2 answers
695 views

RGB digital to analog converter

I am seeking help to design a small PCB that can translate digital RGB like Neopixel to analog signals for driving high current LED RGB. I know it's a bit weird. I would like to connect to a board ...
Jesper Egsgaard Nielsen's user avatar
1 vote
1 answer
70 views

Trying to overdrive LEDs my power supply amperage mysteriously "backs off"

I have a 48 parallel matrix of 3v LEDs. I'm trying to overdrive it. I set my supply to 3v and 0.5amps and the display glows. Up the amperage to say 1amp it gets brighter. So far so good. I keep ...
jackisquizzical's user avatar
0 votes
2 answers
124 views

Trigger a 3 V line with 12 V

I would like to trigger a 3 V line (a push dimmer circuit) with a touch button (which is powered by 12 V). Closing the 3 V will turn off (short press)/turn on (short press)/dim (long press) the LED ...
ZTHawk's user avatar
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0 answers
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Connecting 2 LED strips and 1 driver

I have the following things: 1 5w 3in1 LED strip 1 10w 3in1 LED strip 1 20w 3in1 Driver The driver has 3 wires in output, 2 in input. The LED strips each have 3 ...
Sevil Dubariya's user avatar
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44 views

How to place light guide film cuts as part of layer PCB

How can I go about doing something like this in fusion/ eagle? https://www.pannam.com/wp-content/uploads/2017/08/Implementing-LGF.pdf and https://www.snaptron.com/2021/03/how-to-place-metal-dome-...
Wes Ellgass's user avatar
1 vote
1 answer
51 views

Fairy light led strip in parallel gets dimmer near the end [closed]

I have a string of led Christmas lights. They are wired in parallel with two wires coming from the power supply and terminating in a single led. It's missing a power source so I'm trying to get them ...
dmeek's user avatar
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1 answer
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Split WS2812B controlling each branch as if one contiguous strip

I have an output which can control 90 WS2812B LEDs. I have 3x 30 LED WS2812B strips. I cannot daisy chain the signal from these strips. What would be the easiest way to take a 90 LED signal, have the ...
Metalshark's user avatar
0 votes
3 answers
103 views

Salvaged LED Strip

Salvaged LED Strip from old wide screen TV my grand son smashed. I have made a lamp from it; I can power it using a 12vdc 450ma power supply from somewhere. I have few strips and wanted to make more. ...
OverNight Technologies's user avatar
-1 votes
1 answer
898 views

ESP32-WROOM-32 and WLED not communicating correctly to WS2812B LED strips

I am trying to follow Youtube tutorials to run WLED (a program) on an ESP32-WROOM-32 board I purchased, to control addressable LED strips (WS2812B). I bought a board that does not exactly match the ...
Eric Brown - Cal's user avatar
0 votes
1 answer
55 views

12V LED install with adressable LEDS [closed]

I am a software geek. I have a (fairly big) boat. 12V is everywhere. I want to replace all the incandescent LED courtesy lights (about 12 very small light fixtures in 2 different zones) with ...
cknowlto's user avatar
3 votes
1 answer
342 views

12v LED lights powered by 2 different circuits

I am wiring some automotive LED lights (underglow), and currently have them wired from the 12v ACC power (on when ignition is on), with a 5-pin illuminated on/off rocker switch on the dash. It works ...
GoleeMD's user avatar
  • 51
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1 answer
94 views

Issue with LED Strip Brightness using Arduino Mega and N-Channel MOSFETs

I'm working on a project to control a white LED strip (SMD5630) with an Arduino Mega (ATmega2560) using N-Channel MOSFETs (IRL530). The goal is to dim the lights using PWM signals through the digital ...
TheEshan's user avatar
0 votes
2 answers
297 views

RGB strip led controlled by Wemos D1 mini

I have read some threads in this forum about choosing the correct MOSFET needed to drive RGB LEDs, but I have some doubts. I started with this scheme: But I have some doubts about the Vout of the ...
Enrico Camilloni's user avatar
3 votes
1 answer
83 views

Fluctuating brightness in RGB-LED strand controlled by Arduino

I am controlling the three colors of an RGB strand using PWM output from an Arduino UNO (via IRF520N MOSFETs). When the signal to the LEDs is in midrange, the strand starts to visibly pulsate at a ...
Matthias's user avatar
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0 votes
1 answer
50 views

Identify this LED strip and suggestions for controllers

I am trying to find how to use this LED strip. If you can find anything about this please suggest me some controllers. Please refer to these photos. I found this while cleaning the house. It has two ...
Lime's user avatar
  • 1
0 votes
0 answers
223 views

Applying higher voltage to WS2815 LEDs to minimize voltage drop

I'm thinking about doing an LED strip project with 12V WS2815 LED strips. I'll have some relatively long runs of LEDs (>10m) and have read about how the voltage drop through the strip requires ...
bdmcnamara's user avatar
0 votes
2 answers
61 views

What is light bar component?

Have a truck light bar thats not working, one component has rust damage and needs replacing but I don't know what it is. How do I identify it?
Larry Dana's user avatar
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0 answers
50 views

LED Spot and LED Strip dimming problem

I have two 555 timer circuits, each one identical to the circuit below but the "load" is different in each circuit. In the first timer circuit, the "load" is 6 x 2m 12V LED strips (...
ksc0pe's user avatar
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0 votes
0 answers
49 views

Why does 3'x3 LED strip consume more wattage than 9'?

I can't get datasheets on these specific products, but I'm hoping there is a generic answer -- like is the length of the strip's internal wiring just causing enough of a voltage drop over the longer ...
rrauenza's user avatar
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0 votes
1 answer
61 views

Two-channel adjustable, mains-powered, 60W LED driver circuit?

Background I made a nice light for my electronics bench using a tunable LED strip and off-the-shelf driver. The strips have interleaved warm and cool LEDs, and is tunable by adjusting how much power ...
Rick's user avatar
  • 245
1 vote
3 answers
270 views

LED strip power injection

I want to power inject my 6m LED strip after every 2 meters. I wondered if it makes any difference on how I set it up. Do I need to connect the ground from the power supply like in the top figure? Or ...
Raphael Wirnsberger's user avatar
1 vote
2 answers
49 views

How to work out what need to build LED dimmer

I am trying to finish the LED dimmer project using white LEDs 5054 DC12V (240 LEDs) on aluminum plate and diffusor plate. I have burnt out couple of potentiometer and resistors trying to control the ...
William Jerome's user avatar
0 votes
1 answer
63 views

Control WS2812B LEDs independently

I am using three WS2812B LEDs in my PCB and are connected in series with each other. Is there a way that I can control each LED independently rather than controlling all three together? For example ...
Zunuran Nasrullah's user avatar
3 votes
2 answers
163 views

Salvaging/splitting up some backlight LED strips to make a lightbox

I'm trying to reuse some old HD425Y1U51-T0L6 LED Backlight LED strips to make a light box. They look like this: The closest link I found for them (but no spec sheet) is https://www.shopjimmy.com/...
Rick T's user avatar
  • 205
0 votes
2 answers
478 views

LED power injection

I'm trying to implement an LED project which consists of the following components: Mean Well UHP-350-12 / 12 V DC / 350W Power supply GLEDOPTO GL-C008P / LED controller RGBCCT 5050 60LEDs/m, 4 x 5m ...
Michael's user avatar
  • 101
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1 answer
54 views

Lower current than specified with LEDs' calculations for power supply

I have 1 meter of this ledstripe with 144 LEDs per meter. It is specified: 144 diodes/m = 34.56 W/m That would make 6.912 A per meter. But when I connect them and ...
acroscene's user avatar
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0 answers
89 views

Turn off level shifter

I'm designing an LED controller with ESP for SK6812 and there are many of them connected so I need an extra power supply. The ESP uses 3.3 V but the LED's 5 V so I need a level shifter. There is not ...
4Source's user avatar
0 votes
2 answers
249 views

Replica Board of Samsung Horticulture Gen2 Module

I want to make Replica board of Samsung Horticulture Gen2 Module but with smaller form factor. I am using 42× LM301H (Full spectrum) and 8× LM351H LEDs. IF of LM301H is 65 mA and IF of LH351H is 350 ...
Zunuran Nasrullah's user avatar
1 vote
2 answers
582 views

Drive 24 V LED strip using 3.3 V Wemos D1 mini and MOSFETs

I am searching for the right MOSFET that: Can control a high power LED strip of either 12 V or 24 V. Must be a through hole component (because I intend to solder everything by hand). Should be ...
Marco Bresson's user avatar
0 votes
1 answer
94 views

Long term availability of WS2812B or any Neo-pixel

I am considering the use of Neo-pixel or WS2812B components in a project that we are planning to run for the next ten years with mass-scale production. I am curious about the feasibility of sourcing ...
Sohaib Qamar's user avatar
0 votes
1 answer
55 views

Parallel Multiple DC/DC Regulators for Powering 100 LEDs: Load Sharing Techniques vs. Splitting the Load

Can I effectively power 100 LEDs with a total draw of 1.2A using 2 separate 1A DC/DC switching converters, each powering half of the LEDs, instead of implementing load-sharing techniques like load-...
kk3050's user avatar
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0 votes
1 answer
192 views

What is the data sent by the python-dali library for the commands Turnoff, Turnon, stepup, stepdown, and getstatus to the DALI driver? [closed]

Here is the link to the python-dali library, python-dali library command description, The table details are taken by referring - DALI COMMANDS 1 dali2560/dali.txt DALI COMMANDS 3 Connections overview ...
Mohan Das's user avatar
1 vote
2 answers
228 views

Need help designing a PCB that works the same as a neopixel would (WS2812)

I am currently working on an LED clock project, and one of the things I would like to use is the SMDs found in WS2812B neopixel. I could simply use the LED strip itself, but I wanted to use a custom ...
Win Win Tjong's user avatar
0 votes
0 answers
109 views

Pixeldriver P9813 with HP LED driver AL8860WT - transistor/Mosfet needed?

Refering to my previous question, I want to drive a bunch of High power LED drivers (Datashsheet AL8860WT-7) With a Pixel-IC (Datashsheet P9813). This is my concept: My project so far: connecting the ...
kokospalme's user avatar

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