A fully fledged lock-in amplifier running at 25 kHz sampling rate @ 12-bit on an Adafruit M4 microprocessor board with an extensive Python graphical user interface showing real-time signals, interactive filter design and real-time power spectra.
MIT License
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Change arduino from single ended to differential mode #4
Finished implementing differential mode. Remaining bug: GUI seems to interfere with Worker_DAQ, making it hang when GUI active