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PoE cable basically "injects" power into an ethernet cable
calling and message
shock detection
without the need for level conversion chips
MCU ESP32 Flash 4MB Serial Chip CH9102 Wireless protocol Wi-Fi + Bluetooth 4
433Mhz Wireless key Fob (Remote Control) Cable PoE cable basically "injects" power433MHz RF Wireless Remote Control (4 Channel) Product Description This 433MHz wireless remote control is a compact and reliable transmitter designed for remote switching and control applications. With 4 programmable buttons (A, B, C, D), it allows you to control multiple devices such as relay modules, garage doors, gates, alarm systems, and smart home equipment. Operating on the 433. 92MHz frequency, this remote provides stable signal transmission
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