Hi everyone,
I'm working on an EMG sensor project with electrodes, a sensor board, an Arduino, a 9V battery, and an additional battery; all components are connected as per my current setup. When I connect the sensor output to an oscilloscope, I can observe the raw signal which includes both negative and positive values as expected. However, when I connect the sensor to the Arduino and view the data using the Serial Plotter, the negative values are missing and the displayed signal does not resemble what I see on the oscilloscope.
Could this be due to the limitations of the Arduino’s input pins, or might there be an issue with my connections or code? My background is primarily in software, and my hardware experience is limited. I’d appreciate any insights or suggestions from those who might have encountered a similar issue.
Thanks in advance for your help!
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