Wireless water flow monitoring based on Android smartphone

In this study, a wireless data acquisition system was developed for wireless water flow monitoring (WWFM) in a closed channel pipeline system using android Smartphone. ATMEGA 328 single chip microcontroller (Arduino Uno Prototyping Platform) with a Bluetooth module, Near Field Communication — NFC tag, Smartphone with NFC reader, and G1-½ water flow sensor are applied in this design. The frequency input to the microcontroller was the pulse train which transferred from the G1-½ hall-effect water flow sensor. Then, the data from the microcontroller was transferred to an Android Smartphone using Bluetooth wireless serial communication. In addition, the NFC-tag is used as water flow sensor identification and location. Android Application was designed based on App Inventor for Android (AIA) which MIT platform. As the result, sensor ID based on NFC tag and flow rate of water using Android application on Smartphone was showed by the system. According to the experimental test, the flow monitoring ran well and displayed real-time of flow water in the closed channel pipeline system. The accuracy of wireless water flow measurement is 99.98%.