Here is another variant (after miniscope v2a, b, c, d, e) of simple PC/USB oscilloscope/recorder:
It extends miniscope v2e with PGA (MCP6S21) offering same sampling frequency (480 ksps, 8 bit real time streaming to PC allowing continuous recording up to 512M samples) but 8 gain ranges and high input impedance. Estimated price is $6 – $7 if using homemade PCB (single sided, 1.35 sq inches).
Miniscope v2f – [Link]
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