Continuous sampling for more than one pins

[weskopr]

Hello. I need to continuously read a minimum of 2 pins, but i cant seem to get it to work. Is there a way to do it? I have to get the data simultaneously to be able to make calculations with it. I am using arduino uno. If anyone has a solution please respond...

Thanks in advance!

[fclaus]

I need this feature too, if there is my contact solution, fclaus@hotmail.com

[weskopr]

There is no way to sample continuously more than one port. The ADC on the arduino is a one port multiplexed unit.

[dale60]

If you tell us what you are trying to actually measure, perhaps the sampling rate of the Arduio may suffice.

[fclaus]

I need aquisitar two signals of about 20 Hz, it still, I tried to duplicate the sample acquisition, However it not worked, can anyone help me?

[dale60]

If you seriously want some help please provide more information.

20Hz is not very fast and the Arduino should easily cope with it.

Unless you can provide more details we cannot help you my friend

Regards,

Dale

www.GorillaBuilderz.com

[fclaus]

that recognizes two analog inputs, with approximately 20 Hz, and show the data obtained in a plot

[Roopashetty]

Hello

i am also facing the same problem. I am connecting my 2 sensors on analog pin 0 and 1. When i try to read the voltage only one sensor voltage is reading. provide me help regarding this. I am posting my vi. I am in urgent need. Thank you.

[rico_bravo]

Why not just use a state machine? State one is sampling one sensor and state two samples number two sensor. The time between state one and two will be in the milliseconds which should be fast enough.

[B.Korb]

All below 1kHz you can sample per software. Use a simple timed while loop with 1 ms. Then use the normal (unbuffered) AI - Method.