Novel Light-Emitting-Diode Dimming Approach Based on Cloud Computing for Protected Cultivation

This study designs and implements an intelligent plant lighting system with wireless light-emitting diodes (LEDs), power regulation via Bluetooth devices, ARM Cortex based processor (server), and TI MSP430G micro-controllers with database of light physiology of plant and multi-band of LED pulse width modulation (PWM) electric circuit. The operation interface of proposed system adopts graphic-type cloud-based APP control method, whose goal is to solve the problem of multi-band LED light power regulation in greenhouse, human resource management, and maintenance.