Desenvolvimento de aplicação de baixo consumo energético com conectividade sem fios.

Abstract

This report describes the activities that were performed during six months of internship at the Connectivity Division of NXP SEMICONDUCTORS FRANCE. The internship was aimed at developing a low-power C ++ firmware application for operating a Bluetooth-enabled, 220mAh battery-powered smart button with autonomy of five years, using the NXP QN9080-DK board and its respective Software Development Kit (SDK). By using the subsystems embedded on the NXP QN9080-DK, the SDK, the Bluetooth Low Energy (BLE) standard, measurements of electrical current consumption in different configurations, estimations of battery autonomy, and in accordance with the initial requirements, an application with estimated autonomy of five years, two months and twelve days was developed, considering 200 user interactions per day. In addition, an Application Note, entitled “Creating Bluetooth® Low Energy Applications using QN9080”, was written as part of the internship activities, with step-by-step procedures to be taken by developers and NXP clients as a guide to reach similar results with their embedded applications.