After installing the NI-VISA drivers it works. The example you provided is able to plot my data. I would like to know the Y-axis (amplitude) is in which unit. mV?
It looks more like an amplitude spectrum rather than an actual ECG waveform. It could be due to the raw data from my microcontroller but i'm not sure about that.
Also as the X-axis progresses in time the width of the graph gets compressed into spikes so I guess thats why it looks more like an amplitude spectrum. Anyway to go abt that?
Try this version that uses a Waveform Chart set for sweeps. You will probably have to "fine tune" the waveform update and history length so that is looks right.
Sorry for the delayed reply. I'm still getting a similar graph plot and i've tried to tweak some of the settings but to no avail. I'll be trying to implement an external ADC instead of the micocontroller's and test whether the problem lies in the hardware.
Does the NI example "basic serial write and read.vi" enable me to view the data from the microcontroller? If it does, I can copy the data within the display window and save it to a txt file and upload it. My ECG device doesn't have a function to output a file with the data. I'll see how I can extract the data and post it when I can.
