5pcs/LOT RGB WS2812B full-color driving lights LED lamp beads 4 feet
RGB full color LED lamp beads 4 feet
A price of 10
main feature
● Intelligent reverse connection protection, power reverse connection will not damage the IC.
● The IC control circuit and the LED point light source share a power supply.
● The control circuit and the RGB chip are integrated in a 5050 packaged component to form a complete external control pixel.
●Built-in signal shaping circuit, any pixel point receives the signal after waveform shaping and then output, to ensure that the line waveform distortion will not accumulate.
● Built-in power-on reset and power-down reset circuits.
● The three primary colors of each pixel can achieve 256-level brightness display, complete the full-true color display of 16,777,216 colors, and the scanning frequency is not less than 400Hz/s.
● Serial cascading interface, which can receive and decode data through a signal line.
● When the transmission distance between any two points is less than 5 meters, there is no need to add any circuit.
● When the refresh rate is 30 frames per second, the number of cascades is not less than 1024 points.
● The data transmission speed can reach 800Kbps.
● The color of the light is highly consistent and cost-effective.
Main application areas
● LED full-color luminous character string light, LED full-color module, LED full-color flexible light bar, hard light bar, LED guardrail tube.
● LED point light source, LED pixel screen, LED special-shaped screen, various electronic products, electrical equipment marquee.
product description
It is an intelligent externally controlled LED light source that integrates a control circuit and a light-emitting circuit. Its appearance is the same as a 5050LED lamp bead, and each element is a pixel. The pixel point contains an intelligent digital interface data latch signal shaping amplification drive circuit, a high-precision internal oscillator and a 12V high-voltage programmable constant current control part, which effectively ensures the color height of the pixel point light is consistent.
The data protocol adopts a single-wire return-to-zero code communication method. After the pixel is power-on reset, the DIN terminal accepts the data transmitted from the controller. The first 24bit data sent is extracted by each pixel and sent to the data inside the pixel. In the latch, the remaining data is reshaped and amplified by the internal shaping processing circuit and then forwarded and output to the next cascaded pixel through the DO port. After each pixel is transmitted, the signal is reduced by 24 bits. Pixels adopt automatic shaping and forwarding technology, so that the number of cascaded pixels is not limited by signal transmission, only limited by signal transmission speed requirements.
LED has the advantages of low voltage drive, environmental protection and energy saving, high brightness, large scattering angle, good consistency, ultra-low power, and ultra-long life. Integrating the control circuit on the LED makes the circuit simpler, smaller in size, and easier to install.
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