Uploaded April 2026 | Updated September 2026, 3 weeks ago
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SUPPORT ME ON PATREON at: bit.ly/2Ep5Sia
THIS IS MY FULL TIME JOB. Here are other ways that you can support me: fpvknowitall.com/support-me
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0:00 - I've wanted to do this for YEARS!
fpvknowitall.com/pid-controller-simulator
0:39 - I vibe-coded this with Claude
1:33 - You move the "handle" and the "follower" follows it
2:45 - How to read the "scope" window
5:22 - What does P do?
6:41 - Why P causes overshoot
7:41 - Oscillation settles due to friction / drag
8:29 - How to read Step Response
9:35 - How PIDToolbox step response is different
10:38 - Excess P gain causes flyaway because: delay
13:47 - Have I earned your support yet?
14:29 - What does D do?
16:27 - Raise P to reduce rise time
18:30 - Raise D to control oscillation
19:14 - Why eliminating "noise" is critical
23:05 - Excess D increases rise-time
24:01 - What does a "good" step response look like?
25:24 - Interpreting P/D scope traces
29:21 - What does I term do?
31:40 - P = Present; D = Future; I = Past
32:09 - iTerm Windup
34:03 - What does FF do?
36:56 - Where from here?
Uncertain about what to buy? Check out THE ULTIMATE FPV SHOPPING LIST: fpvknowitall.com/ultimate-fpv-shopping-list
SUPPORT ME ON PATREON at: bit.ly/2Ep5Sia
THIS IS MY FULL TIME JOB. Here are other ways that you can support me: fpvknowitall.com/support-me
---
0:00 - I've wanted to do this for YEARS!
fpvknowitall.com/pid-controller-simulator
0:39 - I vibe-coded this with Claude
1:33 - You move the "handle" and the "follower" follows it
2:45 - How to read the "scope" window
5:22 - What does P do?
6:41 - Why P causes overshoot
7:41 - Oscillation settles due to friction / drag
8:29 - How to read Step Response
9:35 - How PIDToolbox step response is different
10:38 - Excess P gain causes flyaway because: delay
13:47 - Have I earned your support yet?
14:29 - What does D do?
16:27 - Raise P to reduce rise time
18:30 - Raise D to control oscillation
19:14 - Why eliminating "noise" is critical
23:05 - Excess D increases rise-time
24:01 - What does a "good" step response look like?
25:24 - Interpreting P/D scope traces
29:21 - What does I term do?
31:40 - P = Present; D = Future; I = Past
32:09 - iTerm Windup
34:03 - What does FF do?
36:56 - Where from here?
