A thesis submitted to the University of Bedfordshire, in partial fulfillment of the requirement for the degree of Master of Science by ResearchIn this thesis, we report the development and implementation of healthcare sensor devices integrated into a wearable ring device. Using photoplethysmography (PPG) methods, we design a heart rate monitor, a unique method to measure oxygen saturation in the blood and discuss a potentially new method of continuous measurement of blood pressure. In this thesis we also report implementation of a temperature sensor using an LM35 transistor to measure body temperature. A method of integrating electrocardiography into the proposed device is also presented
