Addressable LED strips raise the benchmark to a whole new level. They give you more options and more excellent lighting effects such as running chases, flowing fades, meteor trails, and much more. You can even design your lighting effects with the control system.
But there are so many types of addressable LED strips that it is difficult for people to distinguish them correctly. For example, what people ask most is what is the difference between WS2811 and WS2812B.
What Is WS2811?
The WS2811 is a simple addressableRGB LED strip. It means that you can show each LED color with the help of an information signal. You can get these signals from several places, like the digital pin on an Arduino board or a suitable SPI RGB LED controller.
It is essential to know that this information signal is a pulse-width-modulated (PWM) heartbeat. The most important thing to remember is this. Pulse width modulation, or PWM, is what gives LEDs their power. The word comes from the ws2811 driver IC, which is where it got its start.
People often know these LEDs by their acronym, ws2811. This addressable RGB LED ws2811 is powered by DC 12V, so the voltage difference can be seen. Even if DC 12V is used to power the WS2811 RGB LED Controller we are building today, it can still do its job.
For more details, you can download the WS2811 specification.
What Is WS2812B?
Inside the WS2812B intelligent control LED light source is a package of 5050 parts, including the control circuit and the RGB chip. It has a signal-reshaping amplifier drive circuit, and an intelligently-processing digital port data latch. Also built into the device are a precision internal oscillator and a programmable constant current control element. These parts work together to keep the pixel point light’s color height the same.
In the data transfer protocol, there is only one NZR communication channel. After the pixel has been turned on and reset, the controller will send the data to the DIN port. The first pixel will get the first 24-bit data and send it to the internal data latch. The internal signal of the amplification circuit shapes the other data, which is then sent through the DO port to the next cascade pixel.
After the signal has been sent, it is cut down to 24 bits for each pixel. Pixels use auto-reshaping transmit technology, which means that the number of pixels in a cascade is not limited by how fast the signal can be sent. LEDs run on a low voltage, which is good for the environment and saves a lot of power. They also have a high level of brightness, a wide angle of scattering, good uniformity, low power use, and a long lifespan. The integrated control chip in LEDs is changing to become a circuit with fewer parts, less space, and an easier way to put it together.
For more details, you can download the WS2812B specification.
What Is The Difference Between The WS2811 And The WS2812B?
For the WS2811 LED chip to work properly, it needs a voltage of 12 volts. In contrast, the WS2812B chip only needs 5V to operate. When you use an LED strip with many LEDs, the voltage will drop a lot along the length of the strip. This means that the last few LEDs at the end of the strip and farthest from the board will have a lower voltage.
For example, your strip has 30 LEDs, and the voltage drops by 2V near the end. The WS2811 chip will control the rest of the LEDs, and each will get about 10V. For a 12V LED, this is still fine because it was made to work with that voltage. If you use a WS2812B that operates at 5V, the voltage drop you experience will be 3V, not the 5V that is reported. Right there, the voltage has significantly dropped there.
|WS2811 LED Strip||WS2812B LED Strip|
|Voltage||DC 12 Volts||DC 5 Volts|
|LED Per Meter||60 LEDs Per Meter||60 LEDs Per Meter|
|Power Consumption||14 W/M||18 W/M|
|Wires||Positive + Negative + Single Data Line||Positive + Negative + Single Data Line|
Differences In LEDs Controlled Between WS2811 And WS2812B
The WS2811 can’t be used to control even a single LED on its own. Instead, it controls three LEDs that are grouped together. Because you can’t control them in groups of less than three LEDs, you can’t control them at all. On the other hand, each WS2812B can only run one LED at a time. If you only need to control one LED at a time, you should choose the WS2812B instead of the WS2811 because it has a finer control granularity.
Differences in LEDs Controlled Between WS2811 vs. WS2812B
|WS2811 LED Strip||WS2812B LED Strip|
|Control Mode||3 LEDs Group Control||Individual Control|
|IC Quantity [60 LEDs/Meter For Example]||20 Pcs||60 Pcs|
Differences In Power Consumption Between WS2812B And WS2811
Because it runs on 12V, the WS2811 uses much more electricity. The WS8212B, on the other hand, uses much less power because it works on 5V.
Pros And Cons Of WS2811 And WS2812B
Pros Of WS2811
- Twelve volts give it the power it needs to work. Because of this, it can control many LEDs in a strip.
- This makes it easier to work with many LEDs straightforwardly.
Cons Of WS2811
It can only control a maximum of three LEDs at any given time. Because of this, the control granularity level with the least amount of granularity is three LEDs. Because it runs on 12V, it uses a lot more power.
Pros Of WS2812B
- Each LED has an on/off switch that can be turned on or off.
- In the LED system, each piece of control is represented by a single LED.
- The amount of power that is used goes down.
- For the WS2811/WS2812B to work, it needs data to match at a specific moment. The WS2812B is cheaper and easier to make, and each RGB LED takes up much less space on strips.
Cons Of WS2812B
- Since it runs on 5V, the voltage will drop noticeably as the number of LEDs in the strip increases.
Whether you should use the WS2811 or the WS2812B will depend on how you plan to use it. The WS2811 chip is the best choice for controlling a long LED strip.
Furthermore, if you want to control LEDs down to the level of a single LED, the WS2812B is the part you should use. Both the WS2811 and the WS2812B come with their own set of benefits and drawbacks, so you should consider your needs before making a decision between the two.
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