All Questions
Tagged with ws2812b raspberry-pi
18 questions
1
vote
1
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137
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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
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2
answers
123
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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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0
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87
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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 ...
- 11
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1
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153
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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 ...
- 410
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3
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929
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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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1
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62
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One button circuit with thyristor, controling power suply
Please forgive my lack of knowlige.
I need to make circuit with one button(normaly OFF, ON while pressing) using thyristor.
This circuit will be connecting and disconnecting raspberry pi and bunch of ...
1
vote
1
answer
951
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WS2812B strip glitches or flickers. What's the cause?
I've rebuilt the Project Piano LED Visualizer but I'm experiencing some issues with the LED strip that I don't understand.
I'm using a 10A/5V power supply to power a strip of precisely 180 WS2812B ...
- 163
3
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3
answers
31k
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How much current for a 5V 60 LED/m WS2812B 5m LED strip?
I'm planning on controlling a 5m 60 LED/m WS2812B chip 5V strip with a Raspberry Pi Zero W. According to the website it draws 18 watts per meter (90 watts total). What current would this strip draw, ...
- 33
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1
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283
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Powering 1920 leds with 32 strips of 60 ws2812b led strips each (32 meters)
I'm tring to build a led display with 32 strips of ws2812b led strips with 60 leds each. That's a total amount of 1920 leds.
How many power supplies should I buy? Given the max current of 50mA per ...
0
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3
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3k
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ws2812 strips data grounding method & flickering
I know for ws2812 strips (60ppm) you can ground the data line at the far end to reduce the chance for "echos" and improve performance.
My question is can you:
Short the data tab to the ground tab at ...
- 103
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1
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2k
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~150 WS2812b LED's with Pi Zero and SN74AHCT125N
I'm planning to control about 150 WS2812b LEDs with my Pi Zero and a 5v 11a power source (PC molex connector). Following this guide: https://www.thegeekpub.com/15990/wiring-ws2812b-addressable-leds-to-...
- 3
0
votes
1
answer
528
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How to immediately turn WS2812 LED strip on after power on?
I built a table lamp with a 1m WS2812 LED strip controlled by a RPI Zero W. It has a decent power supply that outputs 5V directly to the LED strip and also powers the RPI. The RPI takes approximately ...
- 1
1
vote
0
answers
117
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How do I wire a Rasberry Pi 3B+ to a WS2812b RGB strip?
I am working on a project where I need to use a WS2812b RGB strip. I am really worried because I have already burnt 2 Raspberry Pis with my wiring. I just want to show my schematics, and be assured as ...
user218251
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2
answers
1k
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Can i use I2C level shifters to power digital LED strips
Can I use I2C level shifters to power digital LED strips, more specifically, WS2812B strips?
I can only find I²C level shifters, are they ok?
user218251
-1
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2
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2k
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LED strip is flickering, but when I touch the data wire to the Raspberry Pi, it's almost fixed
simulate this circuit – Schematic created using CircuitLab
Figure 2. Schematic tidied up by @Transistor.
I have a Raspberry Pi which controls a 12V addressable LED strip. When the data wire is ...
- 1
0
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1
answer
791
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Raspberry Pi Zero - 5 VDC output current?
I was planing on using a Raspberry Pi Zero W for a smart lamp project with WS2812b LEDs.
To avoid needing a separate power supply for the LEDs, my plan was to power the LEDs from the +5 VDC on the RPI ...
- 697
1
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1
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847
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RaspberryPi driven LED strip is flickering
Supplies:
LED Strip Please note I'm trying to power 28 of them. ~1400 mA
Power Supply for LEDs 5v/2A
Raspberry Pi
Breadboard
Microcontroller
I am following the adafruit for driving LEDs from the pi.
...
- 113
1
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1
answer
434
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Using WS2812b Addressable LEDs on Raspberry Pis
I am attempting to control WS2812b LEDs using a raspberry pi according to this guide: https://tutorials-raspberrypi.com/connect-control-raspberry-pi-ws2812-rgb-led-strips/
So far I executed the ...
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