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.
791
questions
0
votes
1
answer
35
views
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 ...
1
vote
1
answer
66
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 ...
- 119
3
votes
3
answers
90
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 ...
- 139
1
vote
1
answer
123
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 ...
- 11
0
votes
0
answers
15
views
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 ...
- 101
0
votes
0
answers
73
views
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 ...
- 1
0
votes
1
answer
68
views
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 ...
1
vote
1
answer
60
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 ...
2
votes
1
answer
110
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 ...
- 41
1
vote
1
answer
50
views
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 ...
- 125
5
votes
2
answers
635
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 ...
1
vote
1
answer
60
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 ...
- 125
0
votes
2
answers
122
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 ...
- 3
0
votes
0
answers
63
views
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 ...
0
votes
0
answers
35
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-...
- 333
1
vote
1
answer
46
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 ...
- 113
0
votes
1
answer
82
views
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 ...
- 103
0
votes
3
answers
98
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.
...
-1
votes
1
answer
617
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 ...
- 101
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 ...
- 1
3
votes
1
answer
271
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 ...
- 51
0
votes
1
answer
71
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 ...
- 1
0
votes
2
answers
223
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 ...
3
votes
1
answer
81
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 ...
- 133
0
votes
1
answer
48
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 ...
- 1
0
votes
0
answers
154
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 ...
- 25
0
votes
2
answers
57
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?
0
votes
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 (...
- 1
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 ...
- 291
0
votes
1
answer
58
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 ...
- 245
1
vote
3
answers
167
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 ...
1
vote
2
answers
47
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 ...
0
votes
1
answer
60
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 ...
3
votes
2
answers
131
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/...
- 205
0
votes
2
answers
378
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 ...
- 101
0
votes
1
answer
53
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 ...
- 179
0
votes
0
answers
76
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 ...
- 1
0
votes
2
answers
206
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 ...
1
vote
2
answers
460
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 ...
0
votes
1
answer
82
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 ...
0
votes
1
answer
52
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-...
- 15
0
votes
1
answer
153
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
...
1
vote
2
answers
186
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 ...
0
votes
0
answers
89
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 ...
- 21
0
votes
0
answers
82
views
SP511E + TTP223 Swapping tactile switch for capacitive touchpad
I'm new to electronics and I'm a little bit lost here.
I am making a lightbox powered by a 12V power supply, an SP511E wifi controller and a LED Strip. Everything will be inside the wooden lightbox (...
0
votes
2
answers
105
views
Voltage Divider as Input to Level Shifter
I need to shift a 3.3V PWM signal to 5V to power a strip of LEDs. We are using a set of JSTs to connect from an Arduino to an LED strip and so only have access to the 5V power. I am having trouble ...
1
vote
2
answers
100
views
Why are most of the LED lights for living dimmable just by their remote (they do not work with a wall dimmer)
I am trying to replace the lights in the entire house with LED lights with a more modern style like this one https://www.amazon.ca/dp/B09582MM2J. They all use LED strips and they say they are not ...
- 111
0
votes
0
answers
117
views
Control LED strips (SK6805) using Arduino Nano and Lipoly 3.7 V battery
I am creating an LED strip controller with an Arduino Nano and a 3.7 V LiPo battery. As I understand it, the operating voltage of the Nano is 5 V, and the logic voltage is 3.3 V. Furthermore, (...
- 13
0
votes
1
answer
48
views
Design using 64 SK6812 LEDs - Matrix vs 8x8 matrix
I am designing a 64 LED ring and am curious about the advantages of a matrix design for addressable LEDs.
For example, if I want to use 64 SK6812s, what is the difference between connecting all of ...
- 13
1
vote
1
answer
261
views
How can I switch the positive line with 5V in a 12V circuit?
I have a 12V LED. I have a sensor. I am trying to switch the 12V wire that feeds the LED with the 5V current coming out of the sensor, but I have not been successful.
I can switch the ground line, but ...
- 11