Design and Implementation Supervisory Control and Data Acquisition (SCADA) of Sedimentation Process of Water Treatment Plant (WTP) by Using Raspberry PI 3 B

Drinking water is a very important factor in human life. Water Treatment Plant (WTP) is way to treat water from the rivers and reservoirs which have the highest percentage of mud by sedimentasi process. Utilization of Supervisory Control And Data Acquisition (SCADA) system is used to make easy in supervising and automation of quality of drinking water which is produced. By implementation of SCADA system on sedimentation Water Treatment Plant (WTP) using Raspberry Pi 3 B, diagram block control and actuator would by easy to see. It is used as an alternative of effectively for sedimentation process of automation PLC. As Master Terminal Unit (MTU), it can control input and output of system. Photodiode and sensor laser are used as indicator to the magnitude of light intensity which is influenced by turbidity of water. Relay and solenoid valve as the sludge remover of the whole system of SCADA, could be well operated. Normally, the intensity of light is 190.4 A°, but sensor I is 21.197 A° and sensor II is 48.856 A°, it is influenced of light laser.