Change power of the light with potentiometer (better).

src/main.cpp

@@ -1,18 +1,37 @@
 #include <Arduino.h>
 
-#define LED 6
+#define BLUE_LED 6
+#define YELLOW_LED 5
+#define RED_LED 3
 #define ANALOG_A0 A0
 
 int Voltage = 0;
 
 // Setup Section
 void setup() {
-  pinMode(LED, OUTPUT);
+  pinMode(BLUE_LED, OUTPUT);
+  pinMode(YELLOW_LED, OUTPUT);
+  pinMode(RED_LED, OUTPUT);
 }
 
 // Loop Section
 void loop() {
   Voltage = analogRead(ANALOG_A0);
   Voltage = Voltage / 4;
-  analogWrite(LED, Voltage);
+
+  if (Voltage > 170  && Voltage <= 255) {
+    analogWrite(RED_LED, Voltage-170);
+    analogWrite(YELLOW_LED, 0);
+    analogWrite(BLUE_LED, 0);
+  }
+  else if (Voltage > 85 && Voltage <= 170) {
+    analogWrite(RED_LED, 0);
+    analogWrite(YELLOW_LED, Voltage-85);
+    analogWrite(BLUE_LED, 0);
+  }
+  else {
+    analogWrite(RED_LED, 0);
+    analogWrite(YELLOW_LED, 0);
+    analogWrite(BLUE_LED, Voltage);
+  }
 }