Low energy wireless communication for medical devices

Wireless communication is very popular in medicine in recent years. It eliminates obtrusive cables of wearable sensors and considerably increases patient comfort during measurement and collection of medical data. Wireless communication plays a significant role in telemedicine and homecare applications. Bluetooth technology is one of the most commonly used wireless communication types in medicine. The aim of this paper is introduce a low energy Bluetooth module for medical/health devices - the low-cost RN4020 module with Microchip Low-energy Data Profile (MLDP). Unique USB dongle adaptor was developed for wireless communication via UART interface. The power consumption tests in different configurations were performed and results are presented in this paper. The declared low power consumption of module was confirmed by measurements in different modes of module - deep sleep, discoverable, connected and sending data.