DESCRIPTION
Round and round and round they go! 12 ultra bright smart LED NeoPixels are arranged in a
circle with 1.5" (37mm) outer diameter. The rings are 'chainable' - connect the output pin of one
to the input pin of another. Use only one microcontroller 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 choke resistors are required making the design slim. Power the whole thing with 5VDC
and you're ready to rock.
There is a single data line with a very timing-specific protocol. Since the protocol is very
sensitive to timing, it requires a real-time microconroller such as an AVR, Arduino, PIC, mbed,
etc. It cannot be used with a Linux-based microcomputer or interpreted microcontroller such as
the netduino or Basic Stamp. Our wonderfully-written Neopixel library for Arduino supports
these pixels! As it requires hand-tuned assembly it is only for AVR cores but others may have
ported this chip driver code so please google around. An 8MHz or faster processor is required.
choose from. Please select one from the