Dynamic Liquid Light Fountain (DLLF) |
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The Dynamic Liquid Light Fountain (DLLF) is a small home garden accessory that combines optical technology with laminar flow jets to display a lighted show. Driven by a servomotor and using Pulse Width Modulation (PWM), a cutting mechanism randomly interrupts the laminar flow at pre-defined intervals. LEDs illuminate the water with light sequences chosen by remote control or manually using DIP switches. To conserve energy, a passive infrared sensor, ambient light sensor, and low level indicator signal the DLLF to operate only at specific times. Finally, the DLLF utilizes the PIC16F887 microcontroller for complete system integration. |