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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59 views

Is my LED strip broken?

I'm attempting my first ever electronics project, trying to do what's in this video. I have: A WS2812B LED strip (60 LEDs/m), 5V An Alitov 5V 15A power supply An Arduino Nano Some little corner ...
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65 views

Microcontroller MOSFET-driven RGB LED strip controller

I'm trying to DIY a very simple RGB strip controller, nothing fancy. The goal is that it has to be driven from a 3.3 V / 5 V microcontroller output, using some N-channel MOSFETs. I will control them ...
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67 views

Ways to Control RGBW LED Strip

There are these RGB & RGBW LED strips with a common anode (V+) input that I want to control. In the past, I've built circuits around the AL8861Y-13 LED driver IC that can control RGBW LEDS if all ...
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>20kHz PWM LED strip ceiling light

I am planning to make a smart controller for ceiling LED light strips inside aluminium profiles. Because of the placement, it is hard to put the power supply unit and controller inside the profile. To ...
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LED Driver Advice Reqd

I'm looking to put LED strips into my converted van. Using some before, it wasn't long before they dimmed or individual leds failed. I was told it was because automotive voltage, especially on newer ...
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68 views

Connecting 12 V led strips to 48 V PSU in series

I have 4 led strips of 12 V, I want to connect them to a 48 V PSU, is the schematic bellow correct? Can I connect them in series? Or do I have to connect them using a step down buck to 12 V? Thanks.
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Why is my calculated wire size a lot bigger than the traces on my LED strip?

I've 3D printed a nanoleaf assembly which will have WS2812B LED strips in them. I'm calculating the correct wire size but my result seems off. I have 14 hexagonal parts which have sides of 10 cm. I ...
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78 views

Flashing random LEDs when multiple wires fished through hole

I've been building a large, 3D printed dodecahedron infinity mirror. Prior to adding the polycarbonate pentagons with mirror film applied, the LEDs worked perfectly in the frame. Once I fished the ...
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74 views

Is it safe to attach COB LED light strips to a desk with a metal frame?

I am kind of new to electronics, and I wanted to make sure that I am not doing something dumb. My SO and I work on one big desk, 177 inches / 4.5 meters long. It has a metal frame and a MDF desktop. ...
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121 views

Can't read power from this product description (10W + 10W notation)

Here is the product in question: https://www.ledbe.com/24v-cob-tunable-white-led-strip My question is: what does it mean by Output Power: 5W+5W, 10W+10W, 15W+15W? ...
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Did I burn out the data pin on my LEDs?

I had my 500 WS2812Bs working. Power injection all along and they were working good for the most part. They had a little flicker when they turned white so I was adding the recommended resistor and ...
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Using constant current and constant voltage power supply with LED strips

I have a Meanwell 12V power supply (ELG-200-12) which is constant voltage and constant current. Note 2: I want to power t one 5 meter 12V LED strip that consume 11.52W/m with it. The specifications ...
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PCB design review request: ESP32 as LED strip controller

I'm trying to create my very first PCB and before wasting my money on ordering non-functional PCB, I'd like to ask your advice. Background: I have WS2815 LED strip, controlled by ESP32 which uses two ...
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51 views

LT3965 Octal Bypass Switch

I have 10 strings of LEDs, string 1 to string 6 have 4 LEDs in series, S7 and S8 have 3 LEDs in series, and S9, S10 have 6 LEDs in series. Each LED has a forward voltage of 3.2 V on average. I'm going ...
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53 views

AL5873QT16E-13 LED driver

I have a requirement wherein strings of LEDs need to be driven with a maximum forward current of 250 mA, and the dimming should be analog, not PWM. I have chosen AL5873QT16E-13 which has 3 channels ...
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Computer PSU tripping as Bench Power Supply

I am currently attempting to construct a bench power supply using an old PC PSU (350W) and having some issues. I have managed to set up a basic standby and power on led's, an on/off switch and a dummy ...
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Running 3-4 red LEDs on 3xAAA batteries efficiently

I have one of these generic Motion Sensor LED Night (example) and I modified it to stay on all night on a much dimmer light. It lasts about 150 hours the way it is now (I just disconnected the IR ...
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Designing UVC LEDs strip using WS2811 LED driver IC

I'm designing a UVC LEDs strip using WS2811 LED driver ICs. I'm using the Vishay UVC emitting diodes [3] having the forward voltage of 6.8 V and the radiant power typically 2.5 mW at 20 mA. I used one ...
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125 views

How do bicolor LEDs switch colors?

I recently purchased a decorative light with two different bicolor LEDs connected in alternating series fashion. It has red/green and red/blue LEDs connected in alternating series On the driver side ...
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145 views

Over 12V output on a 5V power supply? [closed]

I recently bought two 40A, 5V power supplies (Letour) for 990 WS2812B LEDs. Each LED strip (3.3 of them total) is rated for 5V, 20A each. However, when I tested the voltage of both power supplies they ...
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51 views

I'm trying to find out the voltage of my TV LEDs as I wish to replace them [closed]

I have a seven LED strip from a 32" Soniq TV. The strip's model number is E340369 and I want to find out its voltage. Could someone please help as I don't have a multimeter to test.
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83 views

Determining an Output Capacitor Value for LED Driver

I'm designing a buck LED circuit using a LED2000PUR (Data sheet). The issue that I am having is that the LED I'm designing for doesn't have a data sheet, and I need to determine the dynamic resistance ...
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59 views

Connectors on ARGB strip confuse me

I am looking for a nice ARGB strip for a project of mine. I am quite familiar with the 3 pads concept for ground, data and power, but a lot of the strips that I'm looking into buying have multiple ...
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58 views

Correct "correlated" voltage tuning for (multiple) LED

I need to tune the voltage between 6 LED drivers (Meanwell hlg-320h-36ab) that delivers 36Vdc and a LED that can take 30-41Vdc 250w for each of its 6 strips (total 1500w). This will change the color ...
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56 views

How to maintain a stable DC current in case of intermittent disconnections

Aplogies if the question sounds very basic. I have a set of LED strips which are powered by a 12v 5A LED driver (which is plugged to my wall socket 220V AC). As the intermidiate connection between the ...
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57 views

4x 12V LED strips in parallel with dimmers on 8xAA batteries?

I've built a play kitchen for my kids and would like to make the stove and oven light up. It's been a long time since I've done electronic tinkering so wanted to check I've done my homework right. The ...
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222 views

What is the best LED driver to use for this setup - Help with WS2815 data amp over long lines

Currently have 5 m WS2815 strips installed running from 18 AWG wiring connected to 12 VDC Meanwell power supplies and our controllers (SP108,SP102,SP608), power injection on all lines. When we tested ...
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74 views

Heat concerns using 12/14 AWG wire for 30A 5V DC power over shorter distances?

I’m hoping for some advice on wire gauges in practice with respect to heat/safety. I am planning an LED strip setup and have created the following diagram: The setup is designed to be modular, A ...
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1answer
72 views

Understanding LED Forward Voltage in a Constant Current Boost Driver

I am wishing to control different clusters of LEDs. Each cluster can have a different number of LEDs in its string, for example, one cluster might have 8 in series and another only 4. I was thinking ...
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2answers
77 views

Providing sufficient power to multiple components inside of an enclosure with one power input [closed]

First of all, I apologize ahead of time if my terminology is a bit off. I'm more of a software guy, so the hardware side of things is a little tricky for me. My problem is as follows: I'm building a ...
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70 views

Max a current tolerance of led strip and microcontroller

I am trying to hookup a led strip to a 5 V 40 A power supply and ESP8266 microcontroller. I know that the led strip and microcontroller can only draw as many amps as needed. I am concerned about the ...
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137 views

Why does my Ethernet upload speed go to 0 Mbps when connecting an RGB LED strip?

I recently installed the following RGB LED strip on my bedroom's ceiling: The computer and the lights share the same electrical connection. However, everytime I plug the lights into the wall my ...
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2answers
74 views

Will connecting LED strips of varying lengths in parallel cause different levels of brightness?

I'm new to electrical engineering and I've studied the basic elements like resistors, capacitors, and inductors in DC and AC circuits, but I haven't studied LEDs or diodes in general. Right now, I'm ...
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38 views

Interpreting LED light strip data sheet

I'm trying to understand data sheets for flexible LED light strips. I'm looking at https://www.inspiredled.com/wp-content/uploads/2018/03/12V-SB-White-Flex-Spec-2.2.pdf, for example. It says: To ...
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392 views

Ammeter (DSN-VC288) showing wrong values

I am building my own RGB-LED-Strip (WS1812B) controller, including an Ammeter bought at my local electronics store to monitor the current consumed by the LEDs. On the back it can be identified as a &...
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76 views

Replacing a 6 V LED backlight with two 3 V LED backlights

I have a 65" TCL TV which have backlight problem and I have another 60" TCL TV with broken screen. Now when I opened both TV to swap with LED backlighting strips, and I and I noticed the 60&...
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180 views

How do I deal with acoustic noise from a transformer under PWM load?

I am working on a hobby project involving controlling LED strips (working at 12 volt and drawing up to 5A). The light intensity of the strip is controlled using a single MOSFET transistor (...
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2answers
68 views

Mystery RGB LED ring from defunct Hello Sense device. Trying to make it work

I can't seem to figure out how to get this LED ring to work. It's got 4 labeled pads: GND, VCC, VIN, DO. I tried wiring DO to an Arduino and running FastLed on it but it won't light up. I tried using ...
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88 views

Drive very long WS2812B RGB strip (80 meters) [closed]

I have to drive an 80 meters long RGB strip. 100 LEDs/m. What's the best option? I read Arduino hasn't enough RAM to drive them all so I was thinking about split the strip in slices and every slice be ...
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41 views

Help identifying LED strip and its connectors

Some years ago, I was given, what I assume is an LED strip by a friend. I'm interested in building a "NeoPixel"-like solution for a Pi Pico and hope I can use this strip. IIUC from trying to ...
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1answer
46 views

How to correctly wire LEDs and minifans into my greenhouse cabinet [closed]

I am building a small 4-shelf vertical indoor greenhouse. Each shelf has a 3-port USB hub-splitter which powers 1 USB minifan (5V, 1A) and 2 strips of 50cm USB LED lights (5V, 1.8A (30 * 0.06)). Then ...
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2answers
59 views

Putting LED near incadescent light source on lava lamp

I am currently trying to modify a traditional lava lamp, to change the colour of light it emits, by placing an LED strip somewhere around the body, so it also lights the inside of the lamp. My lava ...
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1answer
60 views

Meaning of TV Backlight LED strip details

I am learning electronics and I just disassembled a broken TV with the purpose of reconverting it into a smart light lamp. The issue is that I don't understand the details of the backlight LED strips. ...
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1answer
96 views

WS2813 Lead Wire Issues

I've wired a set of WS2813 leds to a Raspberry Pi. The led strip is found here: https://www.amazon.com/gp/product/B077J27Y4X/ref=ask_ql_qh_dp_hza When I have this strip connected via the short cable/...
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78 views

Series repeating sheets in Altium

I need several number of WS2813 LEDs (20 LEDs), to be connected to each other in series, to form a strip ring. Each WS2813 has an input DI (D1) which is generated by MCU and also has an output DO ...
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45 views

Can LED Power Supply accept different gauge wires at the same time? [closed]

We have under cabinet lighting with this: It's in the middle of the kitchen on strip of under cabinet lighting goes to the left and one to to the right, black splices together with the black and red ...
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59 views

Controlling RGB LED strip with transistor

So I am building 7 segment display with RGB LED strip. To power it, I was thinking of 1 transistor on the input and 3 on the outputs. And my question is: Could I be controlling all 3 of the from one ...
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84 views

MCU, N-channel MOSFET, ~15m led strip, 24V power supply. Whats happening?

Disclaimer Hi, Firstly, I'd like to underline, that I do not have masters degree from electrical engineering and I didn't study electrical engineering on high school. I'm software engineer who likes ...
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81 views

How to use audio signal from car speaker as transistor switching signal?

I want to make reactive LED strip for my car and I want to make it somehow smart... I figured a schematic like the one below: The LED has a 12 V source at the beginning of course. KEY3 is a relay but ...
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1answer
50 views

About to start a new project I have some questions before I start [closed]

So I am going to start to build a table that will have two different stands of lights, which are linked below. I was planning on using an 18 volt Milwaukee battery, but after getting the lights, I ...

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