Instruments & analysis
A two-channel scope, frequency response, I-V curves, and meters that read the same solver everything else runs on.
Oscilloscope
Take the Probe tool and click holes to attach channels 1 and 2, then open the ∿ Scope panel. You get triggering, adjustable time/volt scales, XY mode, cursors, and automatic measurements, enough to see a 555's sawtooth, a PWM duty cycle, or a UART byte in flight.
Frequency & curve analysis
- Bode sweeps (Δ Analysis panel): pick input and output nodes and sweep frequency response: magnitude and phase, for filters and amplifiers.
- I-V curves: trace a two-terminal device's current against voltage: see a diode's knee or a resistor's straight line.
Meters & the hover readout
The Voltmeter and Ammeter parts read out directly on the canvas. For a quick look, just hover: every hole, pin, and wire shows its live voltage in a tooltip, and the whole connected net highlights so you can trace where a signal goes.
Logic analyzer
Open the ⎍ Analyzer panel (under More) and every microcontroller pin that toggles appears as a digital waveform lane, cycle-exact. Alongside the waveforms, bus traffic arrives decoded: I²C transactions with address, payload and ACK/NAK, and UART bytes — so you can see a sensor handshake or a display refresh as it happens instead of inferring it from behavior.
Time travel
Every running session is recorded as it happens. Press Pause and a ⏪ button appears in the run controls: it opens a timeline of everything since power-on. Drag the playhead to any instant — LEDs, displays, and serial output all show the circuit exactly as it was — or step through it one 5 ms tick or one solver step at a time to catch the moment something changed.
Time travel isn't just looking: press Resume live here and the session continues live from the playhead, discarding what came after. Missed a button press, or want to retry from just before things went wrong? Rewind, resume, and take the other path. Replay is exact by construction, so what you scrub through is what actually happened, not an approximation. The first rewind on a heavy bench may re-compute the session up to the playhead — you don't have to wait: press Resume live here right away and the fork lands the moment the replay gets there. After that the bench quietly checkpoints the timeline in the background, and jumps in either direction land in a couple of seconds.