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USB Live Oscilloscope

USB Live Oscilloscope

The design goal was to build a fairly simple device which allows to digitize signals with frequencies ranging from DC to around 1MHz with very long sampling buffer (i.e. millions of points).

Very simple hardware design; most functionality provided by software.

Two 8-bit channels, each configurable as 8bit analog input or 8 digital inputs.

Sampling rate: Tunable in 8 steps from 50kS/s to 10MS/s.


Live transmission of data stream allows storage of nearly unlimited number of samples.

Analog input sensitivity: 1Vpp or 2Vpp, DC coupled with 2.5V common mode.

Digital input: Schmitt trigger, 3.3V or 5V CMOS levels.

USB-powered operation.

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