hIOTron| Quantity | Component name | |
| 1 | × | Arduino Mega |
| 1 | × | Ultrasonic Sensor - HC-SR04 (Generic) |
| 1 | × | Buzzer |
| 1 | × | Jumper wires (generic) |
Door Alarm using Arduino
Security is a major concern so we have designed a door alarm system to recognize the presence of anybody at the door