Combine light and temperature readings to suggest energy-saving actions at home.

Automate watering using soil, weather cues, and schedules to conserve water.

Dim or brighten park/path lights based on motion and time.

Guide sorting with sensors and cues to reduce contamination in recycling.

Optimize a solar panel’s angle using live light readings for better energy harvest.

Compare temperatures across materials to study urban heat effects.

Sense movement near a crossing and flash a gentle wildlife warning.

Measure wind with a simple anemometer and compare locations.