What are some common Arduino projects for beginners?

Here are some common Arduino projects for beginners, perfect for learning how to use sensors, outputs, and basic programming:

 1. LED Blink

• What it teaches: Digital output, delay function

• What it does: Blinks an LED on and off at intervals.

 2. Temperature Monitor

• Components: Arduino + LM35 or DHT11 sensor

• What it teaches: Analog input, serial monitor

• What it does: Reads temperature and displays it on the Serial Monitor or LCD.

 3. Buzzer Alarm

• Components: Buzzer + button or sensor

• What it teaches: Digital output/input

• What it does: Sounds a buzzer when a condition (like button press or motion detected) is met.

 4. Light-Sensitive Lamp

• Components: Photoresistor (LDR) + LED

• What it teaches: Analog input, if/else statements

• What it does: Turns on LED when it gets dark.

 5. Motion Detector Alarm

• Components: PIR motion sensor + buzzer or LED

• What it teaches: Sensor input

• What it does: Detects movement and triggers an alarm or light.

 6. Button-Controlled LED

• What it teaches: Digital input

• What it does: LED lights up when a button is pressed.

 7. LCD Display Message

• Components: 16x2 LCD screen

• What it teaches: I2C communication, output formatting

• What it does: Displays messages or sensor readings on the LCD.

 8. Ultrasonic Distance Meter

• Components: HC-SR04 ultrasonic sensor

• What it teaches: Timing, math for distance

• What it does: Measures distance to an object and shows it on the Serial Monitor or LCD.

 9. Simple Password Lock

• Components: Keypad + Servo or LED

• What it teaches: Arrays, logic control

• What it does: Entering a correct code triggers an action (like opening a servo-based lock).

 10. Joystick Controlled Servo

• Components: Joystick + Servo Motor

• What it teaches: Analog input, servo control

• What it does: Moves a servo based on joystick position.