Toggeable Fan

This will teach you how to build a Toggleable Fan using an Arduino UNO

Supplies

Motor, Breadboard, Arduino UNO, NPN Transistor, Resistors (1k,330), Propeller

Step 1: Get Arduino and Breadboard

This is where you will be building the machine

Step 2: Add Motor

Step 3: Add Pushbutton

Step 4: Add RGB Led

Step 5: Code

const int buttonPin = 2; // Pushbutton pin

const int motor = 13; // Motor control pin

const int red = 10; // Red LED pin

const int green = 9; // Green LED pin

bool spin = false;

bool lastButtonState = LOW;

bool currentButtonState = LOW;

unsigned long lastDebounceTime = 0;

const unsigned long debounceDelay = 50;

void setup() {

pinMode(motor, OUTPUT);

pinMode(red, OUTPUT);

pinMode(green, OUTPUT);

pinMode(buttonPin, INPUT);

Serial.begin(9600);

}

void loop() {

int reading = digitalRead(buttonPin);

if (reading != lastButtonState) {

lastDebounceTime = millis(); // reset the debounce timer

}

if ((millis() - lastDebounceTime) > debounceDelay) {

// If the button state has changed

if (reading != currentButtonState) {

currentButtonState = reading;

// Only toggle if the new state is HIGH (button pressed)

if (currentButtonState == HIGH) {

spin = !spin;

}

}

}

lastButtonState = reading;

Serial.print("Spin: ");

Serial.println(spin);

if (spin) {

digitalWrite(motor, HIGH);

setColor(255, 0); // Red

} else {

digitalWrite(motor, LOW);

setColor(0, 255); // Green

}

}

void setColor(int redValue, int greenValue) {

analogWrite(red, redValue);

analogWrite(green, greenValue);

}

Step 6: Build in Real Life