Introduction Project 0: Getting Started PART I: LEDs Project 1: LED Light Bar Project 2: Light Activated Nightlight Project 3: Seven-Segment LED Countdown Timer Project 4: LED Scrolling Marquee Project 5: Mood Light Project 6: Rainbow Strip Light Project 7: NeoPixel Compass PART II: Sound Project 8: Arduino Piano Project 9: Audio LED Visualizer PART III: Motors Project 10: Analog Dial Project 11: Stepper Motor Project 12: Temperature-controlled Fan PART IV: LCDs Project 13: Ultrasonic Range Finder Project 14: Digital Thermometer Project 15: Bomb Defusal Game Project 16: Serial LCD Introduction Project 17: Ultrasonic People Counter Project 18: Nokia LCD Pong Game Project 19: OLED Mini Breathalyzer PART V: Security Project 20: Ultrasonic Soaker Project 21: Fingerprint Scanner PART VI: Advanced Project 22: Arduino Robot Project 23: Internet-controlled LED Project 24: Bluetooth Voice-controlled LED Project 25: GPS Speedometer Appendix sakriti opis