Read ambient light with TEPT5600 every 60s Compare to user-selected threshold (50/100/200/400 lx via jumpers) Control Meanwell LDD-350 (PWM output) to switch LED on/off Select PWM value (~50/80/100%) via jumpers Measure output voltage of LDD-350 (7–22V range) and trigger a relay if out of range Design schematic in EAGLE Main components: ATtiny1616, TEPT5600, LDD-350, MPM-15-24, N7805-1, HF46F-G relay
