I want to build an oscilloscope and a function generator as a graduation project in my university. Cost should not exceed 125$ or 250$ if the project has more additional features. I will display outputs on a computer screen. I want resources to know what I'm going to do. Please give me as many resources and advices as you can. Here are the specifications required:
Please give me as many resources and advices as you can.
I will display outputs on a computer screen.
Use a sound card to capture waveforms - it won't work with DC signals but will work from 20 Hz to 20 kHz at normal sampling rates. You can also generate waveforms from software by creating wave files that can be outputted from the sound card.
The only hardware extras you will need is a front-end for the scope part that can handle 24Vp-p and a back end for the function generator that turns the line-out signal to 24Vp-p.
You get at least two input channels on a sound card so weight that against it not working at DC.