Analog discovery 2 + multiplexer

[Moj]

Dear all,

I am a beginner and have a question about multiplexing. 

I thank you very much in advance for reading this long question. 

I have an analog disovery 2, and I do some measurement on one circuit, as shown in Fig.1.

Now, I want to do the same measurement on eight circuits one after the other, as shown in Fig.2.

The wave generator generates a chirp. (start frequency=0 Hz, end frequency = 200 kHz, duration = 2 sec)

Now, I have below questions:

1- Can Analog discovery 2 play the rule of a multiplexer? 

2- If yes, could you please help me how to do that?

3- If yes, is there any appropriate python code in "Digilent\WaveFormsSDK\samples\py"?

4- If No, Could you please intoduce me an approriate multiplexer? Energy consumpption is important for my project, therefore digital multiplexers are better.

 

For your information:

1- The analog discovery 2 is connected to a Raspberry PI 4.

2-I am using Python to control the Analog discovery 2. 

 

Thank you very much again,

Moj

 

 

 

[JColvin]

Hi @Moj,

There isn't a way to do what you are describing directly on the Analog Discovery 2 (have the traces/wires "jump" from one circuit to the next). You would need an external mux or relay to facilitate this, though the Analog Discovery 2 could then send signals to that device to make the switch for which circuit is being tested (though based on your setup, you would probably need two multiplexers, one on either side of your circuit, to better control the flow of current and voltage drops).

There is a similar thread on this type of topic here:

Thanks,
JColvin

[Moj]

@JColvin
Thank you!

Edited December 22, 2022 by Moj

[Moj]

Hello@JColvin

Is there any python code for switching in the "sample" folder? 

Thank you

 

[attila]

Hi @Moj

See the DigitalIO.py

[Moj]

On 12/30/2022 at 1:18 PM, attila said:

Hi @Moj

See the DigitalIO.py

@attila Happy New Year and Thank you