I need to set up a system to use my laptop as a virtual test instrument. I have an Adruino Uno board and the latest version of Student Matlab with Simulink. Do I have the right equipment to do this? My task is to measure the frequency response to a resistor/capacitor, high or low pass filter. Can anyone help please?
My task is to measure the frequency response to a resistor/capacitor, high or low pass filter.
I assume this is a real-physical R-C circuit (not virtual)?
The Arduino has an ADC, but no DAC. But, you can generate analog signals in the audio range with your soundcard. The Arduino's ADC has a sample rate limit, so (from what I understand) you can't quite get to the highest audio frequencies.
I will be using a real circuit for testing. I can also make use of a frequency generator to input to the R-C circuit. I just need to be able to measure the response on my laptop.
Google "sound card oscilloscope" the interface is simple and there is lots of software that can be downloaded free, for free trial, or for a small fee.
Russell.
P.S. it might be worth using an external usb sound card to avoid blowing up the built in card if you do something silly!