Part Number: MSP-EXP430F5438
Hi,
Im currently working on a project were I have to read ECG values using a MSP-EXP430F5438. I have been provided with ECG electrodes which provides voltages through a 3.5 mm pin and now I am wondering how to read those voltages using the 12-bit ADC of the MSP430. From the schematic provided below it seems that i could either connect one of the ADC channel pins to the 4.5 pin with a female to female wire and then select that ADC channel in software, or i could solder on two pins on the board in the holes that seem to be connected to the 3.5 jack (picture number 2) and connect those via wires instead. Im just wondering if my acessment seems correct as it doesnt seem like the 3.5 jack is connected to an adc channel like for example, the michrophone is. Has anyone had any experience of reading the 3.5 jack before?