Design and development of a microcontroller based system for the measurement of blood pressure

Abstract

In the present study, a microcontroller based system for the measurement of blood pressure is designed and developed. It is based on the oscillometric method. A microcontroller MCF51QE128 is used in the present study. Further, an LCD module to display the data of systolic and diastolic blood pressure and MR2A16A asynchronous magneto resistive RAM to store measured values of systolic diastolic pressure values are interfaced with the microcontroller, which reduces the hardware complexity. Software is developed in C language using IAR embedded work bench IDE for cold fire due to the inherent language flexibility, the extent of support and its potential for portability across a wide range of hardware. The instrument is tested and results are found to be satisfactory. The instrument is handheld, rugged, low cost, low energy consumption, wearable and cost effective compared to the other commercially available.