first commit

sketch_oct23a/sketch_oct23a.ino

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+const int FAN_PIN = 9; // Pin connected to the FAN
+
+void setup() {
+  pinMode(FAN_PIN, OUTPUT); // Set the FAN pin as an output
+}
+
+void loop() {
+  digitalWrite(FAN_PIN, HIGH); // Turn the FAN on
+  Serial.print("Fan-High");
+  delay(2000);                 // Wait for 1 second
+  digitalWrite(FAN_PIN, LOW);  // Turn the FAN off
+  Serial.print("Fan-Low");
+  delay(2000);                 // Wait for 1 second
+}