This work presents a prototype to adapt a standard
pulse oximeter by turning it into a wireless device using ZigBee.
Patient’s data are extracted and transmitted to the server in real
time through a Wireless Sensor Network. This Wireless Sensor
Network is deployed using the mesh topology in order to reach the
maximum reliability in the communications. The pulse oximeter
is based on a Nellcor DS-100a probe and is controlled by an
Arduino FIO with a XBee wireless modem. The amplifier circuit
which is designed to extract the information of the pulse oximeter
probe is included in this work
