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rpp0 / gr-lora

GNU Radio blocks for receiving LoRa modulated radio messages using SDR
GNU General Public License v3.0
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RN2483 enable implicit header mode. #135

Closed wwwzrb closed 3 years ago

wwwzrb commented 3 years ago

Hi, I'm tring to generate "beacons" for LoRaWAN class B devices. The beacon packets are transmitted using "implicit header mode", without a LoRa® physical header, and without CRC appended by the radio.

The beacon thus only consists of a preamble and a fixed-length payload.

I'm tring to generate beacons using Microchip RN2483 LoRa mote. However, it seems that RN2483 uses "explicit header mode" by default. And there exists no commands to set "implicit mode" on.

So is it possible to enable "implicit header mode" for RN2483? Or could you provide any advices about other devices that support "implicit header mode"?

I find that SX1272 Development Kit support configuration of "implicit/explicit mode". However, the price of this Kit is very high (up to 700 $). Do you know other devices with low price, and as simple as RN2483, which means that LoRa mote can be configured/controlled by laptop using the USB serial port.

Thanks for your any suggestions!

wwwzrb commented 3 years ago

After investigating COTS LoRa devices, I find that Semtech SX series, e.g., SX1272, SX1276, etc., export interface to implicit/explicit mode. Dragino LoRa series have an good encapsulation to these chips and provide concise programming interface based on Arduino. Just providing an reference here if anyone is intersted.