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Worldsemi WS2812 RGB LEDs
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The Worldsemi WS2812 Integrated Light Source — or NeoPixel in Adafruit parlance — is the latest advance in the quest for a simple, scalable and affordable full-color LED. RGB LEDs are integrated alongside a driver chip into a tiny surface-mount package piloted through a single-wire control protocol.

They can be used individually, chained into longer strings or assembled into still more interesting form-factors; some product example can be found at `Adafruit dedicated page <https://www.adafruit.com/categories/168>`_.

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Technical Details (for single WS2812 RGB LED)
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* Power Supply Voltage (Vdd): from 4.5 V to 5.5 V
* Input Voltage (Vi): from -0.5V to Vdd+0.5 V
* Operation Temperature: from -25 °C to 80 °C
* Data Transmission Rate: 400 Kbps (duty ratio 50%)

**LED Characteristic Parameter**

+----------------+-----------------+--------------+-------------+
| Emitting Color | Wavelenght (nm) | Current (mA) | Voltage (V) |
+================+=================+==============+=============+
| Red            | 620-630         | 20           | 1.8-2.2     |
+----------------+-----------------+--------------+-------------+
| Green          | 515-530         | 20           | 3.0-3.2     |
+----------------+-----------------+--------------+-------------+
| Blue           | 465-475         | 20           | 3.2-3.4     |
+----------------+-----------------+--------------+-------------+

Here below, the Zerynth driver for the Worldsemi WS2812 led strips and some examples to better understand how to use them.

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