On the radio side, a LoRa module could cover many kilometres, 10 - 30 times further than a basic 315Mhz module, but regardless, it does sound more like a project for GSM ......
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On the radio side, a LoRa module could cover many kilometres, 10 - 30 times further than a basic 315Mhz module, but regardless, it does sound more like a project for GSM ......