
Description:
This project loops through and turns an LED, then a buzzer, then a Fan Motor on and off. This shows students that turning most types of outputs on or off is the same.
Parts:
- Breadboard
- LED
- Piezo Buzzer
- Micro Fan
- 220 Resistor
- Wires

Code
#define led 8
#define buzzer 9
#define fan 10
void setup() {
pinMode(led, OUTPUT);
pinMode(buzzer, OUTPUT);
pinMode(fan, OUTPUT);
}
void loop() {
digitalWrite(led, HIGH);
digitalWrite(buzzer,LOW);
digitalWrite(fan, LOW);
delay(1000);
digitalWrite(led, LOW);
digitalWrite(buzzer,HIGH);
digitalWrite(fan, LOW);
delay(1000);
digitalWrite(led, LOW);
digitalWrite(buzzer,LOW);
digitalWrite(fan, HIGH);
delay(1000);
}
Code language: PHP (php)