Consumption Current of our Refrigerator (& so Activity State of it) (Location: Tehran-Iran)
Receives data from esp8266
XBee radio with 4 sensors. Hall Effect, LDR, TMP36, FSR. Data is passing through python script loaded on an Asus WL520GU wifi router running OpenWRT.
Propane tank level as measured by a ratiometric hall effect sensor mounted over the tank's analog dial gage. Uses an Arduino Mini Pro and an ESP8266 Wi-Fi module, powered by a 3.2V LiFePo4 battery and solar cell.