GatePi 4 Channel - LoRa Based Relay BoardGatePi is a low power data transmission board with an onboard CH340 USB TO UART converter, 74HC125V Voltage Level Translator, E22 400T22S E22 900T22S SMA antenna connector that covers the 433 868 915 MHz frequency band, 4 Ch Relays, IPEX antenna connector, and LoRaTM Spread Spectrum Modulation technology with auto multi level repeating. GatePi is a serial port data transmission device that can send data up to 5 kilometers. GatePi is a smart LoRa Relay
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