This is our implementation of a heart rate monitor using:

1. Arduino Uno Board
2. HC-05 Bluetooth module
3. AD8232 Heart Rate Monitor

User must add the pads according to the picture (The closer to the heart the pads are, the better the measurement)

User Scans for paired devices and selects HC-05 module

After user selects the device, the android application connects to the bluetooth module and there are four options:

• Start: For starting the test
• Show: For showing the test that has been taken
• Save: For saving the test
• History: For showing the history

The test lasts for around 8 seconds. The arduino onboard led blinks while the test is being taken and it stops blinking when it is finished.
Beats per minute is also displayed. If bpm is below 60 or above 100 a warning message is displayed

User can see the saved tests, with chronological order

Bluetooth 1.2.4
Android GraphView