This project aims to design and implement a portable HealthCare equipment. For the sensor interface, this project uses an Arduino Uno microcontroller. For connecting different sensors to the Arduino board, this project has also designed a custom shield. For controlling the interface, as well as showing the measurements results, this project uses an Android application.
- Electrocardiography and heart rate.
- Body temperature.
- Blood pressure.
- Oxygen saturation (SpO2).
- Respiratory rate.
- Lung capacity.
- Android application to wirelessly control the hardware equipment.
- Bluetooth communication protocol between the hardware equipment and the application.
- ShiftBrite RGB LED control.
- Function LEDs control via multiplexer.
- Needs an external input voltatge (10V, -5V and GND input).
The next pictures shows the Android application and its friendly user interface. It has a page and instructions for each health functionality and a Bluetooth communication protocol, totally transparent to user. The application Project is located in the 'Android' folder.
Menu of the Android application
Electrocardiography page of the Android application
The custom shield has been designed with CadSoft EAGLE software. This design is completely functional and it has been tested. All related files are included in the 'Shield' folder.
The next figure represents the functional block diagram of the designed equipment.
Functional block diagram
Electronic schematic of the shield
Board design without conductive tracks
Board design with conductive tracks (Complete)
The Arduino code is located in the 'Arduino' folder. It contains the implementation of all the features except the blood pressure measurement.