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tuner30ans.ino

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+//Import the needed FastLED library
+#include <FastLED.h>
+ 
+//These variables allow you to specify how the strip will behave
+#define NUM_LEDS 12  //This number decides how many of the strip's LEDs the code will use
+const int ledLength = 1; //This number decides how many LEDs will be turned on at once
+ 
+//Define and initiate global variables
+CRGB leds[NUM_LEDS];
+#define DATA_PIN 16
+int sensorPin = 7;
+int ledValue; 
+int sensorValue;
+ 
+void setup() {
+  // initiate the LED strip
+  FastLED.addLeds<WS2811, DATA_PIN>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );
+}
+ 
+void loop() {
+  //Read value from any sensor
+  sensorValue = analogRead(sensorPin);  
+ 
+  //Using the map function, we can take any sesor input  and align it to a location on the LED strip
+  ledValue = map(sensorValue, 1023, 0, 0, NUM_LEDS);
+ 
+  //Clear previous configuration
+  FastLED.clear();
+ 
+  //Set and turn on desired LED
+  leds[ledValue] = CRGB::White;
+  FastLED.show();
+ }