I am fresher to this forum.am sure that you guys can help me out with the issue i mentioned. :) Recently i took MOD EKG OLIMEX .what i observed was, am getting some sort of signals before i place my thumbs on a thumb pads (HR1,HR3 & HR3,HR4). am using mod-rs232 to view the signal on PC.what is the reason for getting these waves initialy .also can you guys please describe that for what reason resistors R9,R10,R11 & R26 are used in msp430fg439 design at pins 51,50,49 & 48 respectively.
I am trying to use Mod-EKG with Mod-rs232 to see the waveform. However I am unable to do so. I am not able to power up the device using the rs232 and the level shifter. Can you explain how did you get it to work and view the waveform?
Please refer to the document inside this archive: https://www.olimex.com/Products/Modules/Biofeedback/MOD-EKG/resources/Connecting-MOD-EKG-to-PC-via-MOD-USB-RS232-board.zip (https://www.olimex.com/Products/Modules/Biofeedback/MOD-EKG/resources/Connecting-MOD-EKG-to-PC-via-MOD-USB-RS232-board.zip)