Eric Tsai » LoRa http://erictsai.net IoT Projects & Connected Devices Fri, 25 Feb 2022 20:32:09 +0000 en-US hourly 1 https://wordpress.org/?v=4.2.38 LoRa-Tooth http://erictsai.net/?p=344 http://erictsai.net/?p=344#comments Thu, 28 Jun 2018 06:39:32 +0000 http://etsai.net/?p=344 Designed BLE sensors and WiFi and LoRa gateways based on Nordic nRF51822 BLE modules and HopeRF’s RFM95W LoRa radios.  All wireless data presented as MQTT messages to a central broker, with integration into InfluxDB and Grafana for dashboards.  Features include

  • Distributed WiFi and LoRa gateway architecture
  • BLE-LoRa bridging
  • BLE beacon replay/spoof detection
  • Geolocation of BLE beacons in both WiFi and LoRa architecture
  • small form factor sensor design for years of battery life on coin cell batteries
  • Fun development process by using ARM mBED to manage complexity
  • Low cost, accessible project
  • Many practical sensor examples

Full project write-up is here.

 

 

 

 

 

 

 

 

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