ATmega and XBee-based wireless sensing

Health monitoring is a challenging research area. This research aims to develop a cost effective and reliable wireless sensor for collecting real-time health vital signs such as heart rate and body temperature. The literature review has led to the use of various micro-controllers for such applications. This paper presents a wireless sensor developed based on the ATmega micro-controller and XBee protocol. The sensor is capable of storing the data to an expandable memory card and/or transferring them to a remote computer. The developed sensor is low-cost, lightweight and compact. The final system has made a significant move towards these goals.