r/WLED

I have 6m of these LED at 30 LEDs per metre, 12v. I don't have a suitable ammeter to hand so trying to work out the true max current draw so I can size my cables, fuses etc. appropriately.

• 6m @ 30 LEDs per m = 180 LEDs.
• Manual says 0.3w per LED max == 54w @ 12v == 4.5A
• If I set the auto brightness limiter above 5A with the lights on full white, I can't perceive an increase in brightness, so that seems to square.
• However, the manual for the LEDs says max 4W per metre, or 0.13w per LED, == 23.4w @ 12v == 1.95A.

Basically am I throwing too much current down the wire, so even though it works I will slowly cook the wiring somewhere?

I should be getting my multimeter back later today so I can measure properly, but keen to see if my maths is mathing!

ETA:

https://preview.redd.it/t0eu5k8njbkh1.png?width=1605&format=png&auto=webp&s=8d2d1158cacc92111250fd41a8ff043191ed9416

Okay so maybe I should trust the spec: with my multimeter, white full brightness, 180 LEDs, 1.9A. that matches the manual's max 4W per metre.

Strange the ABL still reduces the brightness if I set it below 5A. I know these LEDs are a bit strange with the way they use resistors to dim the colours, so the draw is the same for one colour or all three, roughly.

That totally doesn't line up with the calculator.

WLED + ESP32 somehow reacts to my fan switch with ZERO physical connection

This is probably the weirdest electronics coincidence I've come across 😂

I have an ESP running WLED, connected to my laptop through a USB hub. The USB hub also powers several other devices, and everything works normally.

There's a ceiling fan in the room controlled by a completely separate wall switch.

There is absolutely no physical connection between the fan switch/circuit and the ESP setup. Different board, no GPIO connection, no relay, nothing.

But here's the weird part:

When I turn the fan OFF, my WLED lights suddenly turn ON.

If I don't turn the fan off, the lights don't do it.

The ESP is only connected to my laptop via USB. The fan isn't connected to the laptop, USB hub, ESP, LED controller, or anything else in the setup.

So I'm genuinely curious: how is this even possible?

The other devices connected to the same USB hub don't seem to react at all.

Could this realistically be mains noise/EMI causing the ESP to reset or glitch, or am I just witnessing an extremely specific coincidence?

I'm more curious about the mechanism than looking for a fix.

So I recently took a task upon myself for me and my friends to deck out our basement so we can host some house sets as well as a couple parties a month. My plan is to do something similar to this

​I'm looking to control them with WLED whole also having the strips be 60leds/m. I would like to do around 8 ports with each port running 10 meters or two 5 meter strips. I've been looking into building my own set up with the Bong69 controller and a separate power supply, but I'm looking for some guidance on getting this done before September.

Hi everyone,

Not exclusively a WLED question but I figured you'd have the answer. Once upon a time a was tinkering with WLED on a D1 mini and a WS2812B. I plugged an old 5V phone charger directly into the D1 mini and powered about 7m of LED strip from that and everything was great.

Now I'm refreshing my knowledge since I haven't touched it in years and everything I read says there's no way I should be able to power that many LEDs directly from the D1 mini. I'm seeing 7 LEDs max in most places.

So my question is, how many LEDs should I be able to power by connecting the LED strip directly to the D1 mini?

Thanks.

Hi everyone,

​This might be a newbie question, but I want to do a quick sanity check to make sure I’ve understood everything correctly before buying the rest of the hardware and flashing firmwares.

​Here is what I'm trying to achieve:

- ​Control WLED (probably QuinLED DigQuad) using physical KNX wall switches.

- ​Integrate with Home Assistant via a KNX-IP interface for smart automations and dashboards.

- ​Audio reactivity: Make the addressable LEDs react to music from my multi-room audio setup (WiiM streamers).

​KNX integration: To make the QuinLED controller act as a native KNX device, would i need to flash OpenKNX firmware onto it and use an OpenKNX UP1-UART module connected to the board? Or is this possible using WLED with KNX-IP?

​Audio input: To feed a physical line-in audio signal (3.5mm / RCA) directly from my WiiM streamer into the WLED controller, I need an I2S ADC module (like a PCM1808 or WM8960) wired to the ESP32’s I2S pins, right?

​For audio reactivity across multiple rooms, would you recommend feeding line-in via an I2S ADC directly into the DigQuad, or running LedFX on Home Assistant and streaming DDP data over Ethernet instead?

If I control DigQuad through KNX commands over UP1-UART, do I lose the ability to push DDP data over ethernet from Home Assistant server?

Probably the easiest way would be to send KNX signals to Home Assistant server, and just let HASS command WLED. But I don't want the basic functionality of my led strips to rely on the HASS server running 24/7.

​Would love to hear your thoughts or info about similar KNX + WLED + Audio setups!

​Thanks!

bought 5 m ws2812b strips to make my own led with wled and esp32 but there is no extra power wires for me to connect the 5v 10amp power supply adapter. i saw a bunch of videos they all had them i assume i got a different version of the strips. how can i solve the power issue with manual soldering.i can do soildering but no clue where to connect which wire or the extra 2 wires

usually the 2 extra wires are connected to strip rather than the connecter in the videos.any help or guide video would be appreciated

https://preview.redd.it/qkqib6l8j3kh1.png?width=1600&format=png&auto=webp&s=0ff836deb4e3e6471743ebdf21da4cf2a39c2ae7

So I’ve done some basic low voltage electronics work over the years, most for battery powered items, and have always had smooth experiences. Ive recently decided I want to add led strips to all my my cabinets and bookcases in my office, so happy to take the project on.

However, over the years my wife has developed a fear of electrical work, with a small fear that almost anything has the potential to burn the house down.

Some of that has now rubbed off on me and I’m doubting myself as I move into a project powered from an outlet.

I’m running a 24v power supply to an ESP32 and then to all of the lights. What are my chances that I burn the house down? And most importantly how can I get over the hurdle of feeling like maybe I will by taking on these types of projects?

I'm finishing a playroom for my kids, I want add LED strips in the ceiling. I've been trolling this sub for awhile as well as watching Chris Maher videos and other various stuff on youtube.

I ordered some LED profiles to go in the drywall

I ordered the GLEDOPTO controller with 4 Outputs and was going to order some 12v SK6812 strips.

The room is about 14'x23' I plan to run about 4 strips running the long way. About 7ish meters each. Do I need power injection?

Can I power the GLEDOPTO directly with the same 14 gauge wire coming from the 15 amp breaker for the ceiling lights?

I tried looking on the calculator on https://www.wled-calculator.com/calculator/ and https://wled-calculator.github.io/ and they're getting a little confusing

https://preview.redd.it/4l4iqiuzfzjh1.png?width=622&format=png&auto=webp&s=52c61c12ce9fd9a7bab93ec75217ec4ac0e03e3f