Plot several slow, low-voltage analog signals through Serial Plotter as an educational waveform viewer, not as a protected oscilloscope.
Engineering approach
Plot several slow, low-voltage analog signals through Serial Plotter as an educational waveform viewer, not as a protected oscilloscope.
Implementation guidance
Connect only signals that stay inside the ADC range and share a known ground. Add proper attenuation, clamping, buffering, and galvanic isolation in a designed front end before measuring anything beyond a protected low-voltage bench circuit.
Scope and limitations
Arduino inputs can be damaged by negative voltage, overvoltage, transients, or a ground fault. Never connect this setup directly to mains, motor power, or an unknown circuit.
Choose the required components and verify their specifications in the Juthour Tech store.
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