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Add of LORA technology to OpenMQTTGateway

The V0.9.1 release of OpenMQTTGateway will introduce the compatibility with LORA RF technology based on the work of Sandeep MISTRY.

LORA is a technology used on Low Power Wide Area Network, the 3 first words of this definition are very interesting. Indeed in home automation we are often faced against the challenge of range and working with battery powered device. LORA solves both problems by its low power consumption and its "kms" range.

The first tests on OMG has been done with the TTGO LORA boards based on ESP32.
They are delivered with an antenna and an embedded display. Quite usefull for the first tests.
Note that the modules I bought had already a sender and receiver program flashed!

If you want to reflash these programs you can find them here:
https://github.com/LilyGO/TTGO-LORA32-V2.0

You can use this library for the display:
https://github.com/osresearch/esp32-ttgo/blob/master/libraries/OLED.zip

These modules combined with OpenMQTTGateway enables to send LORA messages coming from MQTT message, 
here is an example:

 
 mosquitto_pub -t home/OpenMQTTGateway/commands/MQTTtoLORA -m '{"message":"OpenMQTTGateway signal received!"}'



or to receive MQTT messages coming from LORA signals.

 So as to play with LORA gateway uncomment into user_config.h
 //#define ZgatewayLORA  "LORA"

You can now use OpenMQTTGateway to communicate with far and low power sensors thanks to LORA technology.


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Commentaires

  1. Felix Safar8 février 2020 à 08:06

    Hello, great work. I wonder if using available Sonoff RF Bridge UART in combination with UART enabled LoRA modules, such as EByte E32-915T20D has been already
    integrated to allow for long range communication in addition to WiFi. In negative,
    your suggestions on how to proceed and on available code modules are welcome .

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    1. Flo9 février 2020 à 00:52

      Hello, I don't think it has been done on a sonoff rf bridge. I would better use integrated LORA module like TTGO ESP32 boards :

      https://www.banggood.com/2Pcs-Wemos-TTGO-LORA32-868915Mhz-ESP32-LoRa-OLED-0_96-Inch-Blue-Display-p-1239769.html?rmmds=search&cur_warehouse=CN&p=SZ25159101562014119R&custlinkid=158383

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