The LoRa Radio Module is a long - range, low - data - rate radio modem based on Semtech's Sx1276. It's a low - cost sub - 1 GHz transceiver for unlicensed ISM and LPRD bands. With frequency spectrum modulation/demodulation, multi - channel operation, high bandwidth efficiency and anti - blocking performance, it easily creates a robust and reliable wireless link. This module has two modes: Standard and Star network. In Standard mode, it functions as a transparent data radio modem, communicating with the host in a preset format without encoding/decoding. In Star network mode, one module is the central node, and others are node modules. Communication between the central and node modules is bidirectional, but node modules can't talk to each other. Note that it doesn't have the LoRaWAN protocol, so its star network feature uses its own protocol and isn't compatible with LoRaWAN. We recommend using a USB to TTL Converter to set module parameters, and the Gravity IO Expansion Shield can work directly with the Lora modules. Key features include LoRa frequency spectrum, 868/915Mhz ISM frequency band, - 137 dBm receive sensitivity, 20 dBm max output power, serial port and wireless wake - up, star networking ability, and a supply voltage of 3.4 - 5.5V.
Using this LoRa Radio Module is quite straightforward. First, if you need to set the module parameters, you can use a USB to TTL Converter. It's really handy for getting the settings just right. For operation, you have two modes to choose from. In Standard mode, you don't have to worry about encoding or decoding. The module will communicate with the host in the preset data format. In Star network mode, make sure to configure one module as the central node and the rest as node modules. Remember, node modules can't communicate directly with each other. As for power, ensure the supply voltage is between 3.4V and 5.5V. This will keep the module running smoothly. Since this module doesn't support the LoRaWAN protocol, don't try to use it in a LoRaWAN - based system. To maintain your module, keep it in a dry and clean environment. Avoid exposing it to extreme temperatures or humidity. And if you're using the Gravity IO Expansion Shield, just connect it directly to the Lora module for seamless operation. That's all you need to know to make the most of your LoRa Radio Module.
