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Questions tagged [ws2811]

The tag has no usage guidance.

-5
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0answers
31 views

ws2811 pnp driver [duplicate]

I am going to drive 9 RGB leds with a WS2811 LED Driver and NPN transistor as a switch. Can you please check my schematic for mistakes or advice?
-3
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0answers
38 views

ws2811 driving RGB LEDs [duplicate]

Iam going to drive 9 RGB leds with WS2811 LED Driver and NPN transistor as a switch, Can you please check my schematic for mistakes or advice?
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votes
0answers
46 views

WS2811 driving npn transistor

i've designed a schematic based on WS2811 LED Driver to drive 9 RGB LEDs - total load 9 * 60 mA each LED = 540 mA -, could you please check it , Is there any mistakes? , Also i have a problem in ...
0
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0answers
27 views

WS2811 flicker to random colors when trying to turn them all off in a 3x3 array

I am trying to do more, but for starters, I am trying to write code to turn all of my WS2811 off that exist in a 3x3 array. Currently, when I run my Arduino project, they are flickering from red, to ...
1
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0answers
76 views

WS2811 LED Strip Driver

I'm in the process of designing a LED strip driver using a WS2811 chip and 3 MOSFETs. I've attached the schematic below. I based it on the reference circuit in the WS2811 datasheet (link), and this ...
3
votes
1answer
537 views

LED-driver board with WS2818/WS2811 and PT4115

I want to develop a board with a WS2818 IC and three PT4115 as high current LED drivers. Input voltage shall be 12-18V. You can easily mount a Wemos D1 Mini ESP8266 board on the top edge, as the pins ...
0
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0answers
152 views

Red divider resistors for 5050 RGB strip coming from WS2811 chip

To split up a WS2811 data signal into discrete 5050 RGB 12V LED signals, I followed the example on the WS2811 datasheet and hooked up its outputs to a separate power supply. This example shows one ...
0
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1answer
74 views

multiple strings ws2812 chip led

I want to connect 8 strings of addressable LEDs so the strings do exactly the same thing at the same time. All 8 strings start at the same point, but radiate outwards. Would the controller be able ...
0
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1answer
163 views

busted WS2811 LED strip by overpowering, totally useless now?

Powered a 5V WS2811 LED strip with 12V by accident. It turned on for a split second, it fried a microcontroller, I noticed the smell and turned everything off as fast as I could. When i tried ...
0
votes
3answers
947 views

How to implement constant current LED driver for WS2811?

I want to use WS2811 to drive high current LEDs. As it is mentioned in the datasheet this chip provides 3 channels with 18.5mA constant current sinks. Maybe what I need is a simple PNP BJT with ...
0
votes
0answers
633 views

5v/2.1A Power Bank batteries powering LED strip dropping output at 260mA

I am having an issue with powering a 30 x ws2812 RGB LED strip with a 5v/2.1A "power bank" battery. The strip is controlled by an Arduino Pro Mini(-ish) clone (3.3v @ 16 MHz) (http://www.anarduino....
2
votes
1answer
62 views

2 meter data cable to rgb LED

I need to run a 2 meter data cable from an Arduino UNO to a series of 40 RGB LEDs with integrated WS2811 drivers. What kind of cable do I need? Do I need something between the cable and the first rgb ...
0
votes
1answer
82 views

power and fusing for first mains-powered project (100x WS2811 (RGB LED))

I'm a software guy who's done simple Arduino projects powered by a computer but doing my first project which involves mains/"wall" power. Working backwards: 2x 50-LED chains of WS2811 addressable ...
0
votes
3answers
271 views

WS2803 12V Strip Controller

I have made a circuit that is meant to control 12V LED Strips using a WS2803 Chip. The problem I am having is that the L7805CV regulator reaches 80°C while the 1k resistor bank reaches 40-50°C. ...
0
votes
1answer
845 views

High currents LED switcher circiut for WS2811?

I am making one High Amp for WS2811 RGB LED driver in range 2 Amp, SO base on it's Datasheet the driver working by this way: there are some switcher circuit similar to this : But this kind of ...
0
votes
1answer
2k views

Arduino Uno only lighting up 3 of 8 LEDs in WS2812 Strip

I have an Arduino UNO driving a 8 x WS2812 strip but only the rightmost three of the strip are lighting up. The UNO should be able to deliver current for more than 3 WS2812s. That previous link states ...
2
votes
2answers
2k views

Driving WS2811 LED strip from microcontroller

I'm planning to drive the input of a WS2811 based LED strip (total approx 450 LEDs) from a microcontroller/arduino, as per the diagram below. Do I need a transistor, buffer or anything else between ...
2
votes
1answer
325 views

Impedance matching resistor for ws2811?

I want to design a circuit using ws2811 on page 5 of the datasheet It says "To prevent the reflection and hot-swap protection, we suggest to connect a 33ohm resistor at the data input or output port ...
1
vote
2answers
3k views

Driving high power LED using WS2811 or WS2801

I want to use either WS2811 or WS2801 to drive high power LEDs with spacing between LEDs up to 15 meters. These are going to be used outdoors or in a water feature. As you know WS2811 output is ...