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Reverse Engineering a VanMoof E-Shifter – Part 2 – Decoding the Signals
Now we've tapped in to the wiring of a VanMoof e-shifter, let's work out the baud rate and format of the data being transmitted and which format of messages are being exchanged between it and the bike.
At the end of the last post, I left everyone hanging, having tapped into and sniffed some data being transferred on the wires between the bike and the e-shifter. Searching within the results table for D3 and 7B highlighted the CRC-16/MODBUS row, although it presented the bytes as 0x7BD3 as opposed to 0xD37B which we expected based on what we saw within PulseView. In my next blog post, I'll detail a small project that can log an entire bike ride's worth of communication.
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