Catalog > Consumer Electronics > Kits > Smart Kits WS2812 Neopixel Ring with 8 RGB LEDs WS2812 8 RGB LEDs Neopixel Ring BMT WS2812 NEOPIXEL RING-8 LED WS2812 NEOPIXEL RING WITH 8 RGB LEDS. RINGS CAN BE CASCADED AS AS ONLY 1 MCU I/O PIN IS USED FOR CONTROL. OD 32MM 4-7V Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features Round and black shape, this is great for making interesting project.8 ultra bright smart LED NeoPixels are arranged in a circle with 32mm outer diameter.The rings are cascaded connected – connect the output pin of one to the input pin of another. Use only one MCU I/O pin to control as many as you can chain together!Each LED is addressable as the driver chip is inside the LED. Each one has ~18mA constant current drive so the color will be very consistent even if the voltage varies, and no external resistors are required making the design slim.Power Supply : 4-7V DCWS2812 use a single data line DO communication protocol, but a very timing-specified.This ring board can be driven by AVR 8mhz MCU, such like AVR, PIC, Arduino, etc.WS2812 required a capacitor, but it is already designed on the board. References