LoRa node sensor - RFM95, BME 280 & Arduino Pro Mini

Nic Burkinshaw

IT consultant for mobile, IoT, cloud server infrastructure and application containerisation

Posted on 25-10-2016

The HopeRF modules are great but not easy to use on a breadboard. So, I mounted this one on a scrap of solder-able breadboard and used wirewrap wire for connections.
Power for this sensor node is an AA-size LIFEPO4 cell that has a charged voltage of just over 3V3.
I mounted breadboard and battery on aluminium composite plate, usually used for signage - note I have a ground connection as a simple groundplane for the 1/4-wave whip (laid flat for the pic, normally vertical).