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Keyestudio SK6812 5050 40Bits LED Shield For Arduino UNO R3

KS0416
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Introduction:

keyestudio SK6812 shield is particularly designed for Arduino controllers. Simply stack the shield onto UNO board to use.

The 40 SK6812 LEDs are all controlled by D13 pin on UNO board. When using, connect other components to the female headers of 2.54mm pitch, controlled by UNO board.

SK6812 LED is an intelligent controlled LED light source that integrates the control circuit and light-emitting circuit.  

Each LED shape is as same as a 5050LED bead. Each element is a pixel. Each pixel interior not only includes intelligent digital port data latch and signal reshaping amplification drive circuit, but also includes a precision internal oscillator and a 12V programmable constant current control part, effectively ensuring the highly consistency of the pixel point light color.

The data transfer protocol uses single RZ (return-to-zero) communication mode. After the pixel power-on to reset, the DI port receives data from controller, the first 24bit data is extracted by the first pixel,and then sent to the data latch inside the pixel. After being amplified by the internal shaping processing circuit, the remaining data will be forwarded to the next cascade pixel point through the DO port of the LED. 

The signal will be reduced by 24bit for each pixel point transmission.

The automatic shaping and forwarding technology is adopted for the pixel points, so that the cascade number of the pixel points is not limited by the signal transmission, and only limited by the signal transmission speed requirement.

LED has the advantages of low driving voltage, environmental-friendly, energy saving, high brightness, large scattering angle, good consistency, long life span, etc. 

 

Specifications of Single LED:

1) Anti-reverse protection circuit; the reverse power connection will not damage the internal IC of the LED.

2) IC control circuit and LED point light source use the same power supply.

3) Control circuit and the RGB chip are integrated into a 5050 packaged component, forming a complete external-control pixel point.

4) Built-in signal shaping circuit; the signals received by any pixel point will be waveform shaping first and then output, ensuring the circuit waveform distortion not accumulate.

5) Built-in power-on reset circuit and power-down reset circuit.

6) Each pixel of the three primary color can achieve 256 brightness display; complete full-color display of 16777216 kinds of color;  scan frequency no less than 400Hz/s.

7) Serial cascade interface, to complete the reception and decoding of data via a signal line.

8) When transmission distance between any two arbitrary points is no more than 5 meters, no extra circuit needed.

9) When the refresh rate is 30fps, cascade number no less than 1024 points. 

10) Data sending speed can reach 800Kbps.

11) The color of the light is highly consistent, cost-effective.

Advantages:

1) Built-in IC light bead is brighter than common light bead

2) High consistency of RGB chips inside all LEDs

3) Reliable performance of built-in drive IC

4) Use hard plastic packaging, preventing press damage.

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