Digitally controlled 4-channel constant current source for LED luminary based on PIC microcontroler

摘要

In this work 4-channel constant current source based on PIC microcontroller is presented. Intuitive feedback is given by the LCD attached to the PCB. The driver has the abilities for manual control the channels (onboard buttons), remote control via UART/USB and several demonstrative regimes for daylight simulation. The main goal of the designed device is the control of multimodule LED lamp (RBG + white) for simulating natural daylight cycle thus preventing disturbance in the human circadian rhythm by varying the light spectrum.