Oscilloscope #
The oscilloscope is where you simulate your circuit and view the results. Place probes on the breadboard, choose an analysis mode, and run the simulation. All analysis is powered by ngspice, the industry-standard SPICE engine.
Quick start #
- Place probes — select the Oscilloscope tool and tap tie points to add measurement probes.
- Open the oscilloscope from the toolbar.
- Pick an analysis mode (see below).
- Run — tap Run Simulation (or press Return).
The free version plots up to 2 probes / signals. Premium removes the limit.
Analysis modes #
| Mode | What it shows | When to use | Tier |
|---|---|---|---|
| Transient Analysis | Voltage vs. time | Oscillators, pulses, time-domain behavior | Free |
| Operating Point | DC node voltages & branch currents | Checking bias points | Free |
| Real-time | A continuously updating transient view | Watching dynamic behavior live | Free |
| SPICE Shell | The full generated SPICE netlist | Reviewing or running raw netlists | Free |
| AC Small-Signal | Frequency response (gain/phase) | Filters, amplifier bandwidth | Premium |
There is no separate “DC sweep” mode. Statistical and thermal effects are applied to a transient run through component parameters — see Tolerance & Monte Carlo and Temperature Sensitivity.
Probes #
- Each probe is color-coded and plotted as its own trace.
- Free: up to 2 probes/signals plotted at once.
- Premium: unlimited probe points and plotted signals.
Premium analysis features #
- AC Small-Signal Analysis — frequency sweeps and Bode plots.
- Temperature Sensitivity — set the operating temperature and per-component temperature coefficients to see thermal effects.
- Tolerance & Monte Carlo — give components tolerances and observe the spread across runs.
- CSV export of simulation data, and WAV export of audio sources.
See the individual pages above for details on each mode.