Add simple sketch for PWMing a LED (strip) using a simple trim pot

jherland · jherland · commit 0e44e69339be · 2012-12-02T16:53:16.000+01:00
diff --git a/PWM_LED_Control/PWM_LED_Control.ino b/PWM_LED_Control/PWM_LED_Control.ino
@@ -0,0 +1,27 @@
+/*
+ * PWM_LED_Control
+ * A simple combination of the AnalogReadSerial and Fade Arduino examples.
+ *
+ * Reads an analog input on pin 0, prints the result to the serial monitor,
+ * and PWM the LED on pin 9 using the analogWrite() function.
+ *
+ * Attach the center pin of a potentiometer to pin A0, and the outside pins to
+ * +5V and ground, and connect an LED to pin 9.
+ *
+ * This example code is in the public domain.
+ */
+
+const int pot_pin = 0;
+const int led_pin = 9;
+
+void setup() {
+	Serial.begin(9600);
+	Serial.println("Ready.");
+}
+
+void loop() {
+	int value = analogRead(pot_pin); // 0 <= N < 1024
+	analogWrite(led_pin, value / 4); // 0 <= N < 255
+	Serial.println(value);
+	delay(100);
+}
