this post was submitted on 17 Aug 2023
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cheap diy oscilloscope (feddit.de)
submitted 2 years ago by [email protected] to c/[email protected]
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it uses the headphone jack as the ADC. the app is called huskerscope. i made this little board to allow me to have an input

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[–] StinkyDave 1 points 2 years ago

That's insane. I love it.

[–] [email protected] 1 points 2 years ago* (last edited 2 years ago) (1 children)

I imagine the ADC has a high-pass filter. The low sample rate (usually 48kHz) could also be an issue

You can also use your phone as a 2-channel function generator using https://play.google.com/store/apps/details?id=com.keuwl.functiongenerator. Maybe you could use both at the same time to measure a circuit's frequency response

[–] [email protected] 1 points 1 year ago

huskerscope actually has a 2-channel function Generator in it aswell. but duento the filter i now am working on an esp8266 based scope as i had the esp laying around.