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Module AD8232 Heart Rate ECG

A module with sensors used to process electrocardio- and electromyo-signals.

NOT available.

Expected price: 360,00 UAH

from 1 pc :	—	360,00	UAH
from 3 pcs :	—	324,00	UAH	( -10,0%)

Prices are indicated at the time of product availability and may change upon receipt

Current balances:

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Description
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Heart Rate Sensor, ECG The AD8232 is a sensor used to process electrocardio- and electromyo-signals.

Not a medical device! It is intended, first of all, to get acquainted with the principles of constructing an ECG and EMG.

Main characteristics:

Current consumption: 170 uA
Supply voltage: 2 to 3.5 V
Built-in RFI filter
2-pole high pass filter
3-pole low pass filter
Common mode rejection ratio: 80 dB
Electrode contact detector
Built-in "Right Leg Drive" Amplifier
LED synchronized with electrode readings
Output signal: analog
Module dimensions: 36mm*28mm*7mm

Connection

The sensor is connected to the microcontroller using 5 pins GND, 3.3V, OUTPUT, L0-, L0+.

To take an ECG, the electrodes are attached to the body according to the figure:

Note

For EMG, electrodes are attached to various groups of skeletal muscles, depending on the tasks you set.

It is important to attach the electrodes in the correct order, otherwise you will get a distorted signal.

In order to make sure that all the electrodes are installed correctly, it is recommended to use a multimeter and ring the pins of the 3.5mm connector on the board and the pins of the 3.5mm plug on the electrodes. If you use wired electrodes, you need to solder them according to the markings on the board.

Nutrition

The input supply voltage is 3.3 VDC, supplied to the 3.3V and GND pins of the sensor.

More about the sensor

The AD8232 ECG heart rate sensor from Analog Devices is 50% smaller and uses 20 percent less power than comparable devices. It consists of an AD8232 board, a set of electrodes, and a cable to connect them to the AD8232 board.

The sensor is designed to receive, amplify and filter weak biopotential signals under strong interference conditions. The AD8232 includes a two-pole high-pass filter and an unswitched op-amp that allows the use of multi-pole low-pass filtering technology to remove line noise and other interference. This allows the sensor to be directly connected to the oscilloscope via the OUTPUT pin.

This sensor takes ECG readings using the bipolar lead method, in which the potential difference between two points of the electric field (electrodes) is recorded. These data can be used to track heart rhythms during exercise and sports, as well as in general to monitor the work of the cardiosystem.

In addition, the sensor can record EMG (electromyogram), and the received signal can be used in bionics and prosthetics, in controlling virtual joysticks and keyboards in game simulators.

Examples

Output pulse to the plotter via serial connection.

Sensor output connection table:

GND - connects to the GND pin of the Arduino UNO.
3.3V - connects to the 3.3V pin of the Arduino UNO.
OUTPUT - connects to the A0 pin of the Arduino UNO. Responsible for the signal from the electrodes.
L0- - connects to pin 11 of the Arduino UNO. Electrode contact detector (-)
L0+ - connects to pin 10 of the Arduino UNO. Electrode contact detector (+)
SDN - not used

After you have assembled the circuit, upload the sketch below. At startup, it collects data from the electrodes and transfers them to the port monitor.

If after that, while in the Arduino IDE, you go to the "Plotter by Serial Connection" section ( Ctrl + Shift + L ), then the data from the electrodes will be displayed in the form of a graph:

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The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
To carry out technical calculations and obtain the exact parameters of the goods, use the datasheets from the manufacturer's website.

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