CS.49 – Motion-Sensing Desk Lamp

• Nikos Kotsopulos
• Aaron Quino

This project is a design of a motion-sensing desk lamp using an Arduino. The lamp will be able to detect motion and change its lighting accordingly. This will be useful as an automatic, hands-free lamp for personal use. The system consists of an LED array, an Arduino breadboard and microcontrollers, a motion sensor, sensor button, IR receiver, an LCD display, and a buzzer. Motion-sensing subsystem: The motion-sensing subsystem is responsible for detecting movement and activating the LED array. It includes the motion sensor and communication with the breadboard. The motion sensor sends a signal to the Arduino breadboard when it detects movement, which triggers the LED array. This subsystem will be tweaked to adjust the sensitivity of the motion sensor and how long the LEDs will stay on after motion has been detected. Additionally, it will have a button for disabling the motion sensor, effectively disabling the lamp from turning on. LCD subsystem: The LCD subsystem is responsible for providing us with information about the system at it current state. The IR receiver receives signals from the motion sensing subsystem which can toggle between manual and automatic mode. The LCD display shows the current state of the lamp (on/off) and also how long it has been on for. The buzzer will be used as audible feedback when the motion sensor is activated.