Components
By excluding the Smartphone and disposable parts (electrodes and batteries), the device whole
cost is between 20 and 25 Euros (25-30 US dollars). Here all the components needed:
• ECG module AD8232 (Module Single-Lead, Heart Rate Monitor Front End) +
electrodes cable (usually already included in the off the shelf module)
• Arduino Nano board
• HC-05 (or HC-06) Bluetooth module
• Battery holder/clip
• Switch
• Box
• Connector cables / wires
Needed tools: tester, clippers, soldering iron and tin, screwdriver, pliers.
Figure 13: ECG module AD8232
Figure 14: Arduino Nano Board
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