Implementation of a Compact Wearable Temperature, Pressure, Humidity and Gas Sensing Device.

This paper presents the implementation of a compact wearable sensing device with temperature, pressure, humidity and gas measurement capabilities. The paper focuses on the implementation of an automatic procedure task able to perform periodically readings of the sensor and sending the data through a conventional serial port by the implementation of the USB Communication Device Class (CDC). The wearable sensing device has been tested by gathering measurements of temperature, pressure, humidity and gas sensor resistance when it has moved between two different areas in order to detect data variations and check the correct performance of the automatic procedure task. The objective is to develop a wearable device easy to use, portable and with simple connectivity to any host device in order to measure the ambient environmental conditions. The implemented wearable device is focused to be an easy approach for data measurement of the outdoor and indoor environments that can be used for research, industrial or educational purposes.