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Figure 11: ECG hardware 

 

 

 

Figure 12: ECG device inside its box 

 

Содержание AD8232

Страница 1: ...both a low cost and good performance It is based on few boards to be connected together ECG module AD8232 Module Single Lead Heart Rate Monitor Front End Arduino Nano board HC 05 or HC 06 Bluetooth m...

Страница 2: ...upply to avoid serious injury and electrical shock to yourself or others DO NOT connect any AC line powered instrumentation or device to the ECG device here proposed Placement of the electrodes on the...

Страница 3: ...ooth module as shown in figure 1 Connections can be made by soldering wires directly to the boards or using connector cables with female headers figures 2 and 3 The battery supplies the Arduino board...

Страница 4: ...female header connectors cable Beside the main connection scheme of figure 1 detailed steps are here described additional RLD resistor for safety issue alternative home made electrodes cable alternat...

Страница 5: ...resistor fig 4 In case of a 9V battery a resistor of 1MOhm can replace the 360 kOhm resistor This operation is the only one requiring some soldering skill since such resistors SMD are very small Figu...

Страница 6: ...tional resistor in series to the RLD resistor Figure 6 additional resistor board connected to the AD8232 board Alternative home made electrodes cable Off the shelf AD8232 modules usually includes the...

Страница 7: ...trodes cable and to connect it to the dedicated pins of AD8332 The cable can be realized by using a coaxial cable better if shielded to reduce external noise alligator clip heat shrink tubing and fema...

Страница 8: ...pin connections in case of no soldering option Switch and box A switch can be placed through the battery cable positive terminal to turn on off the device Instead of using an additional LED to check i...

Страница 9: ...Figure 11 ECG hardware Figure 12 ECG device inside its box...

Страница 10: ...ble on the market usually have a configuration of resistors and capacitors that give a frequency band between 0 5 and 40 Hz If the frequency bandwidth is not specified in the documentation supplied by...

Страница 11: ...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 Batter...

Страница 12: ...Figure 15 HC 06 module and its cable Figure 16 switch example Figure 17 battery clip example Figure 18 battery holder...

Страница 13: ...r Arduino board the sketch file may need changes Installing the ECG SmartApp To install the App copy the provided apk file ECG_SmartApp apk on the smartphone memory open it and follow the instruction...

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