oddWires IoT-Bus, Documentation

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CHAPTER
18
LoRa
This IoT-Bus module utilizes the Hope RFM95 to offer low-cost, LoRa radio transmission and a Wi-Fi/LoRa gateway.
It uses the correct 915 MHz rather than the 433 MHz european standard often found. The RFM95W transceivers fea-
ture the LoRa long range modem that provides ultra-long range spread spectrum communication and high interference
immunity whilst minimizing current consumption.
Using Hope RF’s patented LoRa modulation technique RFM95W can achieve a sensitivity of over -148dBm using a
low cost crystal and bill of materials. The high sensitivity combined with the inte20 dBm power amplifier
yields industry-leading link budget making it optimal for any application requiring range or robustnes.
LoRa also provides significant advantages in both blocking and selectivity over conventional modulation techniques,
solving the traditional design compromise between range, interference immunity and energy consumption. These
devices also support high performance (G)FSK modes for systems including WMBus, IEEE802.15.4g. The RFM95W
deliver exceptional phase noise, selectivity, receiver linearity and IIP3 for significantly lower current consumption than
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