With the addition of a 433Mhz RFM12Pi expansion board to receive data via wireless from other OpenEnergyMonitor modules (e.g emonTx) a Raspberry Pi running emoncms can be used as a powerful emonBase base-station to log, process and visualise energy, temperature and other environmental data. Data can be logged locally to the Raspberry Pi’s SD card and/or to a remote emoncms server. Emoncms graphs and dashboards are be served from the Raspberry Pi’s local web-server.

RFM12Pi Raspberry Pi Expansion board kit (433 Mhz) – Shop | OpenEnergyMonitor.