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ASSEMBLY MANUAL

 

 
 

Contents 

 

Contents

 .................................................................................................................................................. 1 

Introduction

 ............................................................................................................................................ 1 

Warnings and safety issues

 .................................................................................................................... 2 

Hardware description and how to build it

 ............................................................................................ 3 

Hardware specifications

 ....................................................................................................................... 10 

Components

 ......................................................................................................................................... 11 

Software Description

 ............................................................................................................................ 13 

 

 
 

Introduction 

 

Hardware

 

The ECG device can be built easily (in less than 1 hour) and only a very basic electronics skills 
are needed.

 

The simple circuit design and layout are a good compromise for having 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 module

 

 
Few connections are needed (connector cables and/or soldering)

 

 

Software

 

No software programming knowledge is required since all you need is to install the App by 
opening the apk file from an Android smartphone and to upload the provided Arduino sketch 
on the Arduino board (this can be done easily by using the Arduino Software IDE and one of 
the many tutorials available on the web). 

 

 

Summary of Contents for AD8232

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

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

Page 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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