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PT-BR: Protótipo de monitoramento para um sistema de bombeamento fotovoltaico. EN-US: Monitoring prototype for a photovoltaic pumping system.
it detects the blockage in sewage pipes using ultrasonic flow sensors and triggers an alarm.
Municipal potable water tank monitoring: the system consists of a Raspberry B+ with UPIS power backup, a Teltonika twct22 controller, a USB<-->RS232 converter and a 3G USB stick (huawei modem firm), recorded parameter is 3G signal, refresh rate ~20sec