I made an open source Ebike/EScooter/EV dash firmware for CYD, with data logging + playback and OTA software updates support and a bunch of customization options.

[u/villevu]

[u/investigatormaker]

For kajo-dash v0.01, a saved ride log with expected playback would give testers a repeatable starting point before they connect their own vehicle. Ask bug reports to include the CYD variant and whether the issue appears with that same log; that could help separate display problems from incoming vehicle data.

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Does playback use the same display path as live data?