Wht is a neopixel ring?
Neopixel ring is made of linking multiple super bright intelligent individually addressable LEDs, the single LED output pin can be connected to another input pin to form a ring, bar, panel, and matrix; data transmission is through the data line of a specific timing protocol, matching SPI/Arduino/Raspberrypi microcontroller, showing different lighting effects; single LED is driven by constant current, even if the voltage changes, the color remains highly consistent.
How do neopixel rings work?
Neopixel LED integrated IC and control circuit are packaged in SMD5050, with an embedded microcontroller inside, which uses PWM precision to set the brightness and color of the single LED, the LED is controlled by a shift register, and only one digital output pin is needed to send data down; PWM is built into each LED chip, so once you set the color, you can stop talking to the ring, and it will continue to control all the LEDs for you.
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