Design & physical computing
Sunlight Plant Monitor
Connecting a light sensor, an LCD display, and an LED strip through Arduino.
The concept
I built a physical computing prototype that senses light near a plant and communicates the result through an LCD screen and an LED strip.
What I built
The circuit brought together a photoresistor, an LCD and potentiometer, and a transistor-controlled LED strip. I documented the concept, components, wiring, schematics, code, and assembled prototype.
The Arduino code reads the photoresistor and compares its value with a sensitivity threshold. The LCD displays whether it is sunny or dark, and the lights respond to the sensor input.
Interaction in the physical world
Covering the photoresistor changes the lights around the plant and makes the LCD display “Its Dark.” That creates a direct connection between a physical action, sensor input, code, and visible feedback.
The project brought together skills from earlier exercises with sensors, transistors, motors, soldering, and serial communication.