Multi signals acquisition from the same serial port

[Henrik_Volkers]

maybe due to the fact you're reading mV?

and what is the difference?   (If you have data in the graph, use Make current values default and than save the vi with data in the graph 😉 )

[sam2017]

Hello Henrik,

Can you explain more to me? I didn't get your point.

[sam2017]

For example, I tried to send a sinusoidal signal. But, I don't see any sinusoidal on LabVIEW 

[Henrik_Volkers]

first include a clear serial buffer in the loop before writing 'C??' and reading a new set of data.

you read with approx. 10Hz .. what frequency is your sine?  I suggest 1Hz or less.

[sam2017]

Why should I add a clear buffer won't it delete the command sent to the Unit for data acquisition?

[sam2017]

Hello,

I'm doing a project where I created an ECG board that generate the signals shown on the oscilloscope in the picture below.

Then I'm going to acquire these 3 signals through a module HB628 to visualize it on LABVIEW. So, my problem is I can't see the signals on the graph in my VI HB628check01(01).vi attached below. 

What do you think about the method I used? how should I fix it?

thank you.