Teaching Jitter Without the Math Wall

We open with histograms built from a simple GPIO toggle harness. Students see spread before they hear integrals. The visceral view buys patience for the budget spreadsheet that follows.

Next, we constrain vocabulary: “late,” “early,” “clumped,” “wandering.” Plain words keep the room inclusive for career switchers while still being precise enough to file bugs.

The third beat introduces paired measurement: same loop, two power supplies, swap only the LDO. The delta surprises people who thought their code was the culprit.

We close with humility: some boards need a layout fix, not another software knob. Saying that out loud saves months.