FastTouch/FastTouch.ino

#include <NeoPixelBus.h>

#define WS_PIN     2  // On Trinket or Gemma, suggest changing this to 1
#define NUMPIXELS 113 // Popular NeoPixel ring size
#define TOUCH_PIN  4  //Für Touch: 2, 4, 12, 13, 14, 15, 27

NeoPixelBus<NeoGrbFeature, Neo800KbpsMethod> strip(NUMPIXELS, WS_PIN);

int touch_value = 100;
int i = 0;
int d = 1;

RgbColor black(0);
RgbColor white(255);

void setup() {
  Serial.begin(115200);
  Serial.println("Touch Test");
  
  Serial.println("Switching off all LEDs");
  strip.Begin();
  //strip.SetBrightness(128);
  strip.ClearTo(black);
  strip.Show();
}

void loop(){
  touch_value = touchRead(TOUCH_PIN);
  
  if (touch_value < 50) {
    Serial.print("Touch @ "); 
    i+=d;
  }
  Serial.println(touch_value);
  strip.ClearTo(black);
  strip.SetPixelColor(i, white);
  strip.Show();
  
  if(i==NUMPIXELS || i == 0) { d=d*(-1); }
  
  
  delay(10);
}