2023
DOI: 10.11591/ijece.v13i4.pp3977-3986
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Portable spirometer using pressure-volume method with Bluetooth integration to Android smartphone

Abstract: <span lang="EN-US">This paper presents a study on an embedded spirometer using the low-cost MPX5100DP pressure sensor and an Arduino Uno board to measure the air exhaled flow rate and calculate force vital capacity (FVC), forced expiratory volume in 1 s (FEV1), and the FEV1/FVC ratio of human lungs volume. The exhaled air flow rate was measured from differential pressure in the sections of a mouthpiece tube using the venturi effect equation. This constructed mouthpiece and the embedded spirometer resulte… Show more

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Cited by 3 publications
(1 citation statement)
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“…This research focuses on security aspects in the context of using fingerprint sensors and smartphones to control home door locking. Through the use of this technology, data will be sent wirelessly via the HC-05 Bluetooth module to smartphone applications designed using the MIT App Inventor platform [30]- [38]. The process of recognizing and extracting fingerprint data for the smart door lock device being developed can be seen in Figure 1.…”
Section: Methodsmentioning
confidence: 99%
“…This research focuses on security aspects in the context of using fingerprint sensors and smartphones to control home door locking. Through the use of this technology, data will be sent wirelessly via the HC-05 Bluetooth module to smartphone applications designed using the MIT App Inventor platform [30]- [38]. The process of recognizing and extracting fingerprint data for the smart door lock device being developed can be seen in Figure 1.…”
Section: Methodsmentioning
confidence: 99%