Monitoring water usage distributed by PDAM had been being done manually. It makes user’s negligence in using clean water extremely hard to control. The negligence causes the waste of water in vain. The research aimed to be able to monitor the clean water usage and to control the water flow that was used so that the problem of wasting clean water in vain could be overcome. Water volume was measured by YF-S201 of which output was processed and sent by ATmega328P through SIM800L module. Measured water volume data could be viewed on a website. Control of the water flow was done by closing or opening a solenoid valve installed on water flow channel. The solenoid valve was controlled by a command sent from short message service (SMS) from users. Suitability between the water volume measuring result of the system and the reference obtained from the result of linear regression analysis was 99,99%.
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