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i-k-bus-board/reference/muki01-optocoupler-schematic.png
Ryan Malloy 5d87dc2cac BMW I/K-Bus interface design brief (ESP32, optocoupler isolated) 
Optocoupler-based design from muki01/I-K_Bus for BMW E-series
I-Bus/K-Bus communication. Includes protocol spec (9600 8E1,
XOR checksum, multi-master contention), module address map,
E46 command codes, IbusSerial library architecture, and
comparison with OBD-II K-line (Tucker project).
2026-02-12 22:39:54 -07:00

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