Which parts to buy for an ecg monitor

[mbrain]

I want to build an ECG monitor to detecting events like heart-attacks. I want to use your sensors and boards but i couldn't figured out which parts should I buy to build an ECG monitor. Could you help me about this subject?

[LubOlimex]

Hey mbrain,

The cheapest routine would be to use OLIMEXINO-328 and SHIELD-EKG-EMG. The good thing about this combination is that there is a ready example and explanation of exactly this connection in the SHIELD-EKG-EMG user's manual.

The only problem you would meet would be with the shape of the electrodes - you would probably need to make own electrodes suiting your needs. The electrodes we sell for SHIELD-EKG-EMG are wrist type and aren't suitable for placing around the heart area (these: https://www.olimex.com/Products/Duino/Shields/SHIELD-EKG-EMG-PA/open-source-hardware).

Edit: note that you would probably need to write own code (or modify the example) to achieve the functionality you speak of - this can be done via miniUSB cable and Arduino IDE.

Best regards,
Lub/OLIMEX

[mbrain]

Hey LubOlimex, thank you for your answer.

How many electrodes can be connectted to  SHIELD-EKG-EMG?

[LubOlimex]

Hey again,

SHIELD-EKG-EMG has just one channel that has three electrodes (DRL, + and -) - the electrode connector layout might be seen on page 16 of the user's manual: https://www.olimex.com/Products/Duino/Shields/SHIELD-EKG-EMG/resources/SHIELD-EKG-EMG.pdf.

However, you might place multiple shields to the same host board and each shield would provide one additional channel. The control of the channel is performed by the AIN_SEL jumper. You may have up to 6 SHIELD-EKG-EMGs stacked one over the other. Which means you can have up to 6 channels on a single host board.

Best regards,
Lub/OLIMEX