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A detailed description of WS2812B small plate intelligent external control LED light emitting angle 180 degrees decorative plate:
Small plate products:
Using the current best-selling ws2812 mainly a boss of a pixel, each platelet which contains the driver IC includes RGB beads, powerful, using simple stable quality built-in IC-WS2812 is a set of control circuit and the lighting circuit in one of the intelligent control of the LED light source. The appearance of a 5050LED lamp, each element is a pixel. The pixel point includes the intelligent digital interface data latch signal shaping and amplifying circuit. It also includes a high precision internal oscillator and a 12V high voltage programmable current control part.
Data protocol:
The way of communication with single line to zero
After the pixel point in the power on reset, the DIN terminal receives data transmitted from the controller, first sent to the 24bit data after the first pixel point to the data latch, the remaining data through the internal plastic processing circuit after the DO port forwarding to the next cascade of pixels, each pixel point of transmission, signal reduction 24bit. An automatic shaping and forwarding technology is adopted to make the number of the pixels of the pixel is not limited by the signal transmission, and only limited by the speed of signal transmission. LED has low voltage drive, environmental protection and energy saving, high brightness, large scattering angle, good consistency, ultra low power, long life, etc.. The control circuit is integrated on the LED, the circuit is simple, the volume is small, and the installation is more convenient.
Small circular product features:
Intelligent back protection, power supply will not damage IC. The IC control circuit and the LED point light source. The control circuit and the RGB chip are integrated in one of the 5050 components, which constitute a complete external control pixel. Built in signal shaping circuit, any one pixel received signal after the waveform shaping and then output, to ensure that the distortion of the line will not accumulate. Built on power reset and power down reset circuit. Each pixel of three primary color to achieve 256 brightness display, complete the 16777216 colors the Quanzhen School of Taoism, color display, scanning frequency not less than 400Hz/s Serial interface, which can complete the data's receiving and decoding through a signal wire. Any two transmission distance in less than 5 meters without any increase of circuit. When the refresh rate of 30 frames per second, the cascade number is not less than 1024 points. Data sending speed of up to 800Kbps. The color of light is highly consistent, cost-effective.
Small circular product advantage:
Small, free installation and strong powerful, 256 gray levels, arbitrary RGB display convenient use, at both ends of the wire can be controlled using. Stable performance, continuous light 10000000 hours will not appear any signal terminal on a resistance, effectively protect the signal end won't burn bad make-up sale, customer welding convenient spot inventory to sell, at any time to ensure a small cargo plate size parameters: board size:
Plate shape: round plate
Plate diameter: 1CM
Plate height: 2-3mm integral parameter:
Working voltage: 5V
Working current: 20mA
Power: 0.3W/
Gray level: 256 gray level built-in driver IC model: WS2811S
Signal transmission: single signal transmission line (plus two power line number: 100) - small /1 panel