Low-power ESP8266 long-range mailbox notification system with motion detection & magnetic sensor. Sends real-time notifications to Home Assistant & mobile devices. Battery-powered with deep sleep optimization. Perfect for smart home automation & mail delivery tracking. Standalone or optional ESPHome integration.
iot security arduino esp8266 automation mail motion-detection smart-home wireless mailbox home-assistant hc-12 mailbox-automation notification-system long-range package-tracking wireless-sensor esphome battery-powered delivery-alerts
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Updated
Dec 17, 2025 - C++