Your waveform is the ESC's 21-bit RLL telemetry frame (after the ~30µs low break). Assuming DShot300 (~1.25µs short high / ~2.5µs long high).

1. Start at first rising edge post-break (line idles low).

2. Mark 21 bits: each from rising edge to next (~3.3-3.8µs).

3. Per bit, measure high pulse width:

• ≤1.6µs: 0

• ≥2.0µs: 1 (Jitter OK; ignore lows.)

Your snippet: 1.25µs high = 0. Zoom out for full 21—should match `010001011101000101110` for 0 eRPM.

For ease, load into Saleae with DShot decoder. If bits flip, check inversion.