Hallo Leute,
ich habe dieses Video gesehen und möchte mir die LED-Leiste nachbauen:
Die Projektseite ist diese hier:
Ich habe dort schon eine Anfrage gestartet, doch leider wird mein Kommentar nicht freigeschaltet 
Ich habe folgenden sketch:
/* WS2812B LED Stripe Magic - Demo
*
* Sharp IR Sensor: Analog Pin A0
* WS 2812B NeoPixel Pin: Digital 6
*
* More information http://www.makerblog.at/2016/12/der-magische-ws2812b-led-streifen/
*
*/
#include <Adafruit_NeoPixel.h>
#define PIN 6
#define NUMPIXELS 22
#include <SharpIR.h>
#define IR A0
// Running average variables
const int numReadings = 20;
int readings[numReadings]; // the readings from the analog input
int readIndex = 0; // the index of the current reading
int total = 0; // the running total
int average = 0; // the average
int newValue = 0;
int lastpixel = 0;
SharpIR sharp(GP2Y0A02YK0F, A0);
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
void setup() {
Serial.begin(115200);
pixels.begin(); // This initializes the NeoPixel library.
// Reset running average array
for (int thisReading = 0; thisReading < numReadings; thisReading++) {
readings[thisReading] = 0;
}
}
void loop() {
int dis=sharp.getDistance(); // this returns the distance to the object
// map distance to LED strip
// map 20-110cm distance to LEDs #0 to #59
// play with this value to match your LED strip
int dispix = map(dis,18,95,0,60);
// Ignore results out of bound, send -10 to average array instead
// This leads to LED marker gliding to end of strip when no object is within distance
if ((dispix >= 0) && (dispix < 60)) {
newValue = dispix;
} else {
newValue = -10;
}
// Running average code from
// https://www.arduino.cc/en/Tutorial/Smoothing
// subtract the last reading:
total = total - readings[readIndex];
// read from the sensor:
readings[readIndex] = newValue;
// add the reading to the total:
total = total + readings[readIndex];
// advance to the next position in the array:
readIndex = readIndex + 1;
// if we're at the end of the array...
if (readIndex >= numReadings) {
// ...wrap around to the beginning:
readIndex = 0;
}
// calculate the average:
int avePos = total / numReadings;
// set LEDs with following function and show them
draw(avePos);
pixels.show();
}
// Simple function resetting all pixels and lighten some around desired distance
void draw(int pix) {
for (int i=0; i<60; i++) {
pixels.setPixelColor(i, pixels.Color(2,0,0));
}
pixels.setPixelColor(pix-2, pixels.Color(0,0,30));
pixels.setPixelColor(pix-1, pixels.Color(0,0,100));
pixels.setPixelColor(pix, pixels.Color(0,0,250));
pixels.setPixelColor(pix+1, pixels.Color(50,0,50));
pixels.setPixelColor(pix+2, pixels.Color(20,0,20));
}
doch wenn ich diese kompilieren will, kommt folgende Fehlermeldung:
exit status 1
'GP2Y0A02YK0F' was not declared in this scope
vielleicht könnt Ihr mir ja weiterhelfen, denn ich habe nicht so die große Ahnung 
Vielen dank schon mal
