Last Updated or created 2023-05-04 Sometimes you forget you ordered something from Ali Express, it takes too long to arrive. Today i’ve got this in my mailbox These are HLK-LD2401B motion/presence detectors € 2,91 a piece. While PIR sensors are slow and doing only motion sensing, these nice small and cheap devices are fast and … Continue reading Got some new sensors (HLK-LD2410B)