ABSTRACT
The traditional metering system of water meters, through human readers, although still widely used by companies that provide water service, tends to become an increasingly unviable process over the years, due to urban growth. With the objective of finding a solution to this question, this paper presents the development of a prototype to monitor water consumption and an application that allows the end user to visualize his consumption. For the prototype, it was used the NodeMCU module, because of it being a low-cost device, along with a Wisol WSSFM10R2 Breakout module, which allows communication through the Sigfox network, considered an alternative network for IoT communications, using simple AT commands, besides the Sigfox company provide all the architecture for the developer. The present work also discusses about how the Sigfox hardware and network works, explaining the pulse conversion processes emitted by the flow and pressure sensors, as well as the use of the NodeMCU module for control and sending of messages through the Sigfox network. In general, the prototype obtained a satisfactory result in relation to the calculation of water consumption, reaching accuracy rates above 90% in tests that used the values returned by both sensors in constant flows and an average accuracy rate of around 99% for tests with varied flows, where it has been proven that the use of the pressure sensor optimizes the consumption calculation.