This thesis work addresses the design and implementation of a MEMS accelerometer into an electronic sensor board from ST Electronics. The main objective is to measure its energy consumption and obtain acceleration data via Bluetooth communication with a mobile device. The software configuration used to implement an application in a high-level language, based on one previously developed by the manufacturer, is detailed. Additionally, the software used for programming the sensor board is described. The configuration of the accelerometer to monitor energy consumption through an electronic circuit specifically designed for this application, fabricated on a PCB, is also explained. This circuit uses an INA219 current sensor, whose values are processed by an Arduino UNO board and sent to a computer via a wired connection.