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Debug tooling for B* ebike system 2016 and later

Overview

This debug tooling enables reading canbus information from the b* ebike system.

The tooling consists of the following parts:

  1. Adapter for intercepting data from the Display connector port.
  2. Platform.io project for an esp8266 to send the intercepted canbus frames to a smartphone/laptop via wifi.
  3. dbc file for dumping the received traces.

How to use

Adapter

  1. 3D print the connector from the stl file in 'connector'
  2. Cut a euroboard with stripe pattern to the required size.
  3. Get some 2mmx9.5mm Pogo pins. Solder them to the board and use a lot of solder to create contact points for the pins coming from the display.
  4. Wire everything up

Wiring

Links

euroboard pogo pins

ESP8266 Firmware

  1. Adapt the wlan SSID and Key in esp8266/src/settings.h.sample

  2. Rename esp8266/src/settings.h.sample to esp8266/src/settings.h

  3. Compile the esp8266 firmware with pio and flash it to an esp8266

  4. Attach a cheap MCP2515 transiver to the esp8266. (See picture)

  5. Power the esp8266 via a usb power supply

  6. Connect to the esp8266 via wifi on port 5001

    nc <esp_ip> 5001

  7. You should now see received canbus frames

Links

euroboard

Dumping frames

  1. Install can tool via pipenv install in tracereader

  2. Enter venv shell via pipenv shell

    cat dumpfile | cantools decode -s drive.dbc