Questions tagged [ws2812b]
The ws2812b tag has no usage guidance.
118
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LED data integrity inconsistency issues using Raspberry Pi
My Raspberry-Pi controls 480 LED's on a WS2812b- strip. I have cut the strips into the shape of large digits and soldered these strips of 4 or 5 LED's together to create the number '8'. I then decide ...
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2
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Power supply parameters to be used for WS2812B addressable leds
I bought WS2812B addressable leds. LED strip has a length of 5 meters and has 144 LEDs per meter. So there are 720 LEDs in total. I want to control this strip led with Raspberry Pi. I want to use ...
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Common-output WS2812 LED strip alternative control
I try to build an RPi controlled LED strip, however, while the Linux is booting, I still want a minimal effect on the LED strip. So my idea is that once the device gets voltage, a cheap ...
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WS2812 LEDs with ESP32-schemantic
I have a WS2812 LED module I want to interface with an ESP32. I want to use a button and a sensor to control the LEDs.
I am not sure if the schematic is OK. Do I need a resistor for the LEDs, and if ...
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31
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Best approach to driving custom RGB mechanical keyboard LEDs
I am in the middle of designing a custom mechanical keyboard and have just finished the PCB schematic, but before I spend a few hours placing and routing components, I thought I might ask y'all a few ...
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WS2812b with Wemos D1 Mini: first LED has a constant color, further ones stay dark
I'm trying to connect a WS2812b LED strip to a Wemos D1 Mini. I'm powering the strip from the 5V pin of the D1 (which is powered from USB). The data pin of the first LED is connected through a level ...
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2
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98
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How to produce a perfect color wheel using an RGB LED?
I am trying to produce a perfect color wheel using a bunch of WS2812 RGB LEDs.
My current attempt is to convert HSL (H = angle in color wheel, S = 100%, L = 50%) to RGB and send the RGB to the LEDs.
...
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What is the correct way to connect a power supply to an Arduino and LED strip?
I am working on a project with a 5 V 15 A power supply with a barrel connector.
What is the proper (safe) way to connect this to an Arduino and also power a WS2812b strip?
I can't power the LEDs ...
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77
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What wire rating do I need for a WS2812b LED strip?
I am looking to make my first Arduino project. I use 140 LEDs of a WS2812B strip. I've got a 5 V, 15 A power supply plugged into a breadboard that goes to my Arduino and my LED strip. I have a roll of ...
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173
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ws2812b + ESP32 + 2 meter wires
I have a WS2812B Led strip, and use a ESP32 with FastLED.
It works great, as long as the led strip is near the ESP32. as soon as I add a 2 meter extension cable between the esp and the leds it stops ...
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132
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Fusing power injected LEDs from both sides [closed]
I am involved on a project where we will be installing thousands of LEDs (WS2812B Addressable strips) on the floor. I have a question about about fusing and if there is a more efficient way to go ...
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55
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How can I test WS2812B 5 m 60 LEDs/m with NodeMCU?
I bought this WS2812B 5 m 60 LEDs/m. I want to know if it works properly. I have a NodeMCU 1.0 and I recently bought a 5 V, 10 A adaptor for these but the damn thing still only lights up the first LED ...
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74
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Arduino USB Protection
I am an absolute novice when it comes to electronics. I want to use a PC to control an Arduino UNO clone that will in turn control a
strip of 122 neopixels. My fear is that I will somehow damage the ...
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46
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Ardunio Errors with ATmega644A Fastled (MCUDude Mightycore)
Good Morning,
I am trying to compile a ardunio project with ATmega664A using the MCUDude MightyCore plug in while using the Fastled library.
I have used this before with ATtiny167 with Spence Konde ...
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367
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Addressable LEDs (WS2815): power and data in a multicore cable
Would it be possible to use a multi-core cable to have power and data in the same wire?
I'm using WS2815 LEDs. The total current needed is 9.6A. For a cable of 8 meters, a 2.5mm wire is needed. ...
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166
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What's wrong with my wire connections? (LED strips only getting ~1 V)
I'm trying to make an LED strip work, with these parts:
A WS2812B LED strip (60 LEDs/m), 5V
An Alitov 5V 15A power supply
An Arduino Nano
My issue is that the strip isn't getting the 5v it requires. ...
- 121
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3
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134
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Use CAT 5 cable to control LED with ESP-12E
I plan to use the ESP-12E's GPIO pin to dim a 12 V LED strip wire and control a 5 V [WS2812B] 1 panel via CAT 5.
I tried using a 10 ft CAT 5 cable to link the ESP12E pin to the DIN pin on the WS2812B ...
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119
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WS2812B NZR protocol at 8 MHz ATMEGA328 doesn't work
Related with my old threads, I'm trying to set up ATMEGA328 at 8 MHz, in this way I could supply to ATMEGA328 with 3.3 V. I'm trying to make it by these lines:
...
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102
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Noisy behaviour of multiplexer 74LVC1G157
I'm trying to use a WS2812B addressable LED with a multiplexer 74LVC1G157. The WS2812B uses NZR protocol comunication at 800 Kbps and each pixel scan frequency not less than 400 Hz.
I have test code ...
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45
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NZR signal and multiplexer 74LVC1G157
I'm trying to use a WS2812B addressable LED with a multiplexer 74LVC1G157. I have test code on an Arduino, and if I connect the LED to I0 or I1, the color of the LED changes, but the delay selector ...
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129
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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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6
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Powering two 5 V strips using a 12 V power supply
I'm working on a lighting project for a van build out. I'm using 12 V car batteries that are solar-powered. I know that I can use WS2811 strips that are 12 V strips and power them directly off the car ...
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3
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180
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PCB design, 30 5 V LEDs per board (probably 6)
It's my first time designing a PCB. I had the idea to make a pyramid out of (probably) 6 same PCBs. Each pyramid would have 30 WS2812B B LEDs. Online I read that on the one side you should be ...
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101
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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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954
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WS2812B absolute maximum voltage
The data sheet I have of the WS2812B is found here.
I can see that there is a defined operational voltage that puts it below 5.3 V. It doesn't mention an absolute maximum voltage which I am interested ...
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156
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Cannot set up WS2812B LEDs with bit banging and ATmega328P at 16MHz
I have an ATmega328P (16MHz extern, GBoard with SIM900 module). I bought 10 LEDs with WS2812B module. My ATmega works with 3.3V but for LEDs I need 5V so I decided to connect TXB0104.
I connected ...
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2
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353
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High-frequency voltage conversion (3.3V control of Neopixels)
I have repeatedly heard that control of Neopixel LEDs running at 5v requires special voltage conversion when using a 3.3v processor, as the 3.3v control input is actually out of spec for the WS2812B ...
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308
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Powering this circuit off 3A USB charger, but it's only supplying 350mA
I have a very simple circuit for a small RGB lamp I'm building. My plan was to power it off one of my many spare old USB phone chargers via micro-usb. It's just a string of 60 WS2812B LEDs with a ...
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2
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413
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WS2812B PWM Noise Interference
I am somewhat new to electronics and I am encountering an issue with a WS2812B LED Strip and noise from other PWM data lines near by causing the LED strip to flicker. I am using an NodeMCU ESP8266MOD ...
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65
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Can I connect a 1A device to a USB 3 port?
All,
If I were to connect 16 WS2182b LEDs in series (16*0.06=0.96A) and an Arduino to a USB 3 port on my PC (0.9A max I think), would my PC/USB controller get fried or would the LEDs just run dimmer?
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275
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WS2812B-8 Strip has two grounds. Is one a signal ground?
I'm running 5 x WS2812B-8 RGB LED strips off an ESP32.
The strips have 4 pads on each end: (from top to bottom)
GND - Is this signal ground?
In / Out - Signal
VCC - 5V
GND - Is this power ground?
I ...
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634
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WS2812B first LED flickering Wemos D1 mini
I'm running 110 WS2812B LEDs with an Wemos D1 mini clone (AZDelivery) and the first LED flickers and won't even turn off but rather show red or green. I changed the data line cable several times, ...
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388
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WS2812b flickering at low levels
I'm having trouble with a circuit I'm building using WS2812b LEDs. The 41 LED pixels are connected to the D3 pin of a Wemos D1 Mini. They are powered by a sufficient strong power source, with a power ...
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133
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Need help with standalone circuit; atmega328p and WS2812
I have a problem involving those two modules, can't keep them work together in board for more than 30 secs. Randomly, leds WS2812D-F5 w/ WS2812B-B, starts to turn on when should be off and then all ...
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3
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213
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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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3
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159
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Does a USB port provide enough power for my LED project?
I'm not quite sure whether or not my LEDs will draw too much current. I can't put the schematic right now, but basically I'm using just using the power line from the USB 2.0 port on my board, and it ...
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1
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721
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WS2812 LED Flickering
Ihave a problem. i need to solve is as fast as possible. Maybe someone here has an idea what to do.
I have WS2812 LEDs.
Beetween each pixel is 30cm cable.
I have to drive about 150 pixels of them ...
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3
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497
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Flickering LED strip when dimming
I have a 5m LED strip (Ultimate Fancy LEDs) that consists has 30 LEDs per meter of WS2812B chips.
Is uses a SP601E Bluetooth controller and was delivered using a 5V/6A power supply.
Out of the box, ...
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300
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Do I need to use a MOSFET to drive 60 WS281Bs?
I’m building a custom keyboard and have 60 WS2812Bs as part of the backlighting system. I’m worried about the signal integrity as I’m using an STM32 and the max current on that pin is 25mA. Do I need ...
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Individual WS2812B circuit: Do i need a capacitor?: Power distribution?
I am currently designing a Circuit that is similar to typical WS2812B ARGB strips but seperatet into modules.
In the offical datasheet, there is no mention of using capacitors as noise protection, but ...
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173
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Controlling WS2818B matrix with ATTiny85
I am working on a small LED board project. The LED board is a 16x16 panel of WS2818B LEDs; they are also known as Neopixels. Controlling these thing is a bit of a pain, and I thought I would look ...
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129
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12V AC to 12V DC converter to power an Arduino and some WS2812B 5050 LEDs
I am looking to convert 12V AC to 12V DC to power an Arduino through the VIN pin. The Arduino will be mounted on a PCB through header pins, please see below.
This is the board I have at the moment.
I ...
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60
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Keep an Arduino Nano and 24 WS2812Bs alive if the power drops for a second
Im working on a project for a pinball machine, working on a arduino controller and beacon boards to replace old filament flashers,
The supply voltage to the new arduino controller and beacon board ...
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564
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Can't get WS2812B LED strip working with PC power supply
I am an absolute beginner in both electronics and LEDs.
I would like to power my WS2812B LED strip (5m, 300 LEDs) with an old PC power supply.
The power supply has 600W so more than enough power.
To ...
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39
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How to select the correct CM choke?
Say I want to reduce noise on the data line for WS2812B led strips.
Is it a viable option to use CM chokes to reduce this noise?
According to the docs, WS2812B data speed is 800Kbs. Which I guess ...
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Can I use a ferrite bead instead of a resistor on the data wire of my LED strip?
I have a WS2812B[PDF] LED strip which I want to control with the PWM0 pin (GPIO18) of my Raspberry Pi.
Multiple sources highly recommend to insert a 330-470𝛀 resistor in between the data pin of the ...
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184
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How individual LEDs in LED strips (or matrixes or cubes) are being powered when supplied with >=12V instead of 5V?
I've been wondering about LED strips and how its individual LEDs are being powered.
My knowledge about LEDs is very basic. I know they're diodes, I know they tend to draw more current than what's good ...
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2k
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How do I safely power 2 m 144 LEDs/m WS2812B strip with 5 V and 10 A?
I am using a 2 meter strip with 144 LEDs/m on a WS2812B LED strip. By doing the maths on how much current would be required to power this we get:
60 mA * 288 = 17.28 A.
However, I am not planning on ...
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233
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How does a ws2812b chip work?
I know what a ws2812b chip does, but how does it work internally?
How can it control the led?
Is there a datasheet that goes into detail?
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Adding more LEDs in the strip causes white to become red-ish
I have an LED strip with 62 LEDs. The type of the LEDs is WS2812B. I am powering them with a 5V 10A switching power supply.
When I set the LEDs to white and full brightness, they look a bit red-ish. I ...
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