Use only one microcontroller pin to control as many as you can chain. , Raspberry Pi, Teensy) may require level shifting on the data line. From Wikipedia - Adafruit: "NeoPixel is Adafruit's brand of individually-addressable red-green-blue (RGB) LED.
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A 5050 RGB LED + LED Driver IC combo makes a single “unit”.It internal include intelligent digital port data latch and signal reshaping amplification drive circuit.
2 V, whether that's at the start, middle, or end of the 180 long black strip. There are two ways this can be addressed: NeoPixel's are awesome you can control hundreds, thousands, millions of lights with 3 wires (pwr, signal, gnd). 3v signaling it is likely the neopixels will not consistantly pick up the signal. “NeoPixel” is Adafruit’s brand for individually-addressable RGB color pixels and strips based on the WS2812, WS2811 and SK6812 LED/drivers, using a single-wire control protocol. NJM2041D LOW-NOISE DUAL OPERATIONAL AMPLIFIER.
happyinmotion wrote: The supply Voltage is steady, at 5. They are based on the WS2812 LED and WS2811 driver, where the WS2811 is integrated into the LED, for reduced The LIN (left in) and RIN (right in) pins are connected to a 3. Bought a 32 LED 1 meter neopixel strip.h> #define N_PIXELS 16 // Number of pixels in strand #define MIC_PIN A9 // Microphone is attached to this analog pin #define LED_PIN 6 // NeoPixel LED strand is connected to this pin #define DC_OFFSET 0 // DC offset in mic signal - if unusure, leave 0 #define NOISE 10 // Noise/hum/interference in mic signal That’s great news for efficiency, but can present a communication problem with 5V NeoPixels.