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  • Arduino - Improved Poor Man's Oscilloscope

    This is a great tool for my occasional hobbyist use. I use the free Soundcard Oscilloscope from zeitnitz.eu for signals above 20 Hz. I want to monitor an opto-coupled signal from the relatively slow rotations of the disk on my Electric meter for my current project, an Arduino based house power meter, so this DC coupled Arduino scope is perfect.

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