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This is a long-distance and low-consumption wireless communication technology, mainly used to send sensor data or command instructions over long distances with a maximum of 10 km and in optimal environmental conditions between devices.
This module is not suitable for transmissions that require a large bandwidth such as audio or video, only transmissions that require a very low bandwidth, that is, low speed and small data packets.
Interfacing SX1278 Ra-02 LoRa Module with Arduino