EasyAlarm MotionSense (Arduino)

PIR motion sensor unit that reports TRIGGERED events to the hub via NRF24.

Hardware

• Arduino Nano (nanoatmega328new)
• NRF24L01+
• PIR sensor
• Activity LED
• Pair button

Behavior

• Debounces motion using Chrono (1s window).
• On motion, sends TRIGGERED to hub, lights LED briefly.
• Pair button toggles pairing: if paired → reset/unpair; if not → start pairing.