Abstract:
Heart is a vital organs in the human body. Heart pressure changes
suddenly due to lack of attention to the daily performance of the heart can
cause sudden heart attack and also coronary heart disease which can lead to
death. Many of us want to check the health of the heart, but lazy to visit the
hospital or clinic, because of the costs required to perform cardiac
examinations are expensive.
The tool to monitoring risk of coronary heart disease using
calculation method of heart rate and stress levels using a Microcontroller
ARDUINO UNO. This tool is an Application Interface that use pulse sensor
to calculate the heart rate per minute, Galvanic Skin Resistance sensor to
calculate the voltage on the human skin and obese risk calculation trough
the comparison of height and weight someone. This system has the ability
to calculate the percentage of a person's risk of coronary heart disease can
be exposed by process all data from sensor. This tool can be a solution to
facilitate us to check the health of the heart without having to go to a doctor
or clinic, just put the parts of our body to the sensor and then we will look
the condition of our heart health accurately.
Based on the results of research conducted, the error percentage
between the manual calculation of pulse sensor and calculation using a tool
made smaller than 2.7%. This proves the accuracy of the sensor used is
quite good. However, during use the tool, the position of the finger should
be stabilized just above the sensor, because the instability of the finger on
the tool will be a great impact on the measurement results.
