Lighting Projects

Build an intelligent, adaptive ambient night light using the compact Arduino Nano V3. Read continuous light intensity from a photoresistor (LDR) on analog pin A0 and modulate an RGB LED with warm amber PWM fading as dusk falls.

Control a 16-LED NeoPixel ring with an ESP32-C3. Turn a knob to change colors smoothly across the rainbow, and press a button to switch between solid colors, spinning rainbow waves, and a gentle breathing glow.

Cycle an RGB LED through solid red, green, blue, and an animated color strobe using a single push button. Learn how multi-color LEDs mix light and how to build a clean multi-state controller with an 8-pin microcontroller.

Connect a light sensor and a red LED to an ATtiny85. When the room goes dark, the LED slowly fades on like a breathing glow. When light returns, it quietly fades off. This project shows how to read a sensor and smoothly control brightness — all from an 8-pin chip.