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I built a tool to find CAN signals by marking events instead of guessing
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I built a tool to find CAN signals by marking events instead of guessing

Reddit r/embedded·u/baconbbqburgerr·about 1 month ago
#qX1L2nnF
#instead#brake#guessing#byte#workflow#article
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I’ve been working on a CAN bus analyzer and wanted to try a different approach to signal identification.

Instead of manually scanning graphs and guessing which byte corresponds to a real-world action, this workflow is:

  1. record a CAN log

  2. mark an event (like brake press)

  3. run correlation

  4. see which CAN IDs / bytes reacted

  5. jump directly into graph + byte/bit inspection

So instead of:

“this might be brake…”

you can do:

“press brake → see what actually changed”

(video below)

Curious if anyone here has tried similar approaches or has a better workflow.

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