Blood pressure measuring device is one of the tools people use to measure blood pressure. Therefore, many of the technologies used to develop a blood pressure measuring device. This study has been designed a blood pressure data transmission on android using a Bluetooth connection. The blood pressure measuring device can measure blood pressure using a pressure sensor MPX 5100DP. Then the data is processed by microcontroller and displayed on the LCD and also on android by the bluetooth connection with HC-05. In this study obtained average systolic measurement error is equal to 3.687% and the average diastolic measurement error is equal to 4.768%.
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