I have already seen the other post but I want a python code through with I can connect my raspberry pi and ECG sensor ad8232 I am totally new to raspberry pi interfacing so I don't completely understand the datasheet of the sensor and how to extract important info from it and use it in python code so please help me I need it for my project please help
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1Have you seen https://github.com/eclipse/upm/blob/master/examples/python/ad8232.py – Mar 01 '21 at 03:38
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@Manjeet Singh, Welcome and nice to meet you. Ah, let me see. (1) A year ago I start playing with AD8232 ECG and found it a good educational toy to learn Rpi, ADC etc. I learn other things such as how to reduce noise etc. My old post is a bit out out dae, because I recommended to use AdaFruit Circuit Python. Perhaps I can take this opportunity to update my answer. – tlfong01 Mar 01 '21 at 03:57
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@Manjeet Singh, You might like to let me know more about you background, knowledge and skills. For example, (1) Do you know Ohm's Law, how to use a multi-meter? (2) Do you know how to use Arduino to blink a LED, and its on board 10-bit ADC to convert any analog signals? (3) Do your school/college have any oscilloscope to display ECG signals? – tlfong01 Mar 01 '21 at 04:05
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@Manjeet Singh, (1) Since your Rpi project spec is on python, I would recommend you to start off getting familiar with Rpi OS buster GUIThonny python IDE v3.3.0+. (2) You might like to write toy programs such as blinking a LED. Please feel free to make comments or counter suggestions. I would hold my answer for you to catch up. It would be nice if you can report your project project in your school/college project blog or website. Cheers. – tlfong01 Mar 01 '21 at 04:45
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BTW, if you have not really started trying Rpi1/2/3/4, I would suggest you to consider the new *US$4 Rpi Pico* which can use Thonny MicroPython. The good things with Pico is that it has built in 12-bit ADC pins to interface ADC8232. You can goolge Rpi Picro ADC projects to find more details. – tlfong01 Mar 01 '21 at 06:25
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In case you prefer Rpi 3/4 over pico for some reasons, you might like to read my answer to the following Q&A on hints to design *"Right Leg" circuit* and solve noise problems. This post contains many useful references, eg, on "*One Lead ECG*": Raspberry Pi 3B+ interface with Heart Monitor AD8232 using MCP3008 and SPI pins, Asked 1 year, 10 months ago, Viewed 4k times https://raspberrypi.stackexchange.com/questions/96482/raspberry-pi-3b-interface-with-heart-monitor-ad8232-using-mcp3008-and-spi-pins. Cjeers. – tlfong01 Mar 01 '21 at 06:37
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Question
How to use Rpi python to read ADC8232 ECG module?
Answer
To continue, ...
References
(1) AD8232 Single-Lead, Heart Rate Monitor Front End Data Sheet - Analog Devices
(3) AliExpress AD8232 ECG Single Lead Heart Rate Monitor ECG Developemt Board Module - US$3
(4) TaoBao CJMCU-8232 AD8232 ECG Heart Rate Sensor Monitor Module - ¥18
Appendices
Appendix A - Example Rpi Python ADC8232 Experiment Setup and Test Results
Introduction
My first getting started test is measure my own heart's beating rate.
Appendix B - AD8232 ECG Datasheet Reading Summary/Log
I an now reading the datasheet again to refresh my memory, and also making a summary notes for Rpi ADC interface and circuit design.
Appendix C - SparkFun AD8232 ECG Module Schematic
tlfong01
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On a Raspberry Pi400 with Arduino installed: You can use the widely available Arduino sketch for AD8232, then upload the Arduino ECG data to Python with Thonny or VSCode via serial, and store the ECG data as a txt file. This is an alternative to using SD cards with Arduino. You can also use the incoming ECG (via serial) on Python to control an LED or the pixels on the Pi Sense Hat. But the display of the ECG is better, I believe, in the Arduino serial plotter than it is with Matplotlib so I wouldn't waste any energy trying to plot the ECG with Python.
Mike
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