Control System Design of Intelligent Water Meter Based on MSP430F413

摘要

We have designed an iButton card water meter control system suitable for management system of payment prior to water supply based on MSP430F413 microcontroller. When installed on the water meter, this control system has functions such as automatic water flow measurement, iButton card read-write, valve control, and alarm display. It consists of low power consumption microcontroller, flow meter, E2PROM memory circuit, iButton card read and write circuit, LCD display control circuit, valve control detecting circuit and voltage detecting circuit. A series of interface circuit for the microcontroller has been designed. The iButton card prepayment intelligent water meter has characteristics such as low power consumption, anti-interference and high security.