Water tank fluid level monitoring

Installation to monitor and notify level of water in large tank

Everything is based on industrial components except the Raspberry PI which is the brain of this installation, and JAVA application which makes all the magic

Raspberry PI is powered by buck converter, soldered by wires to control pads on Raspberry board, micro USB connection is so unreliable, Pi and converter are on the same board attachable to TS35 rail, to communicate Pi is using GSM modem attached to GPIO header, modem is based on SIM868 module

To measure water level I’m using hydrostatic probe and network attached converter 4 – 20 mA signals

Readings are visualized on publicly available internet site, off cours password protected, in the same manner installation can be controlled. If alarm levels are reached device will send SMS to programed recipients