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E46 Dashboard Monitor

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    #1

    E46 Dashboard Monitor

    I'm currently prototyping a dual display, dual UCB C PD module in place of the E46 ashtray. The module can communicate with either or all of these buses - K-Line, I-Bus, CANBUS. It can also do datalogging to an SD card if installed. Currently in development stage focussed on the MSS54HP dme. I'll keep adding support for more ECUs in furture.

    I'll post updates on the progress going forward - just started 3 days ago.

    Feel free to follow my work. Thank you all for the support and any feedback.

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    Last edited by retromuz; 11-06-2026, 08:26 PM.
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    • Likes 3
    #2
    Curious of why the board needs to have 24v output using DC/DC regulator?

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      #3
      Originally posted by sapote View Post
      Curious of why the board needs to have 24v output using DC/DC regulator?
      For usb PD up to 60W x 2.
      • Likes 1

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        #4
        Some screen mockups. Will post some real photos soon. Someone over reddit suggested that I incorporate the amber theme on OEM bmw displays.

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          #5
          Currently implementing CSV data logging to connected SD card if one is available. It can be turned on and off with a second button.
          Last edited by retromuz; Yesterday, 02:38 PM.

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            #6
            Very cool. What microcontroller did you pick for this? Those two rows of through holes make me think ESP32-S3.
            2002 Topasblau M3 - Coupe - 6MT - Karbonius CSL Airbox - SSV1 - HJS - Mullet Tune - MK60 Swap - E86 Front Triangulation - ZCP Rack - Nogaros - AutoSolutions - 996 Brembos - Slon - CMP - VinceBar - Koni - Eibach - BlueBus - Journal

            2012 Alpinweiss 128i - Coupe - 6AT - Slicktop - Manual Seats - Daily - Journal

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              #7
              Originally posted by heinzboehmer View Post
              Very cool. What microcontroller did you pick for this? Those two rows of through holes make me think ESP32-S3.
              ESP32-S3 - yes.
              • Likes 1

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                #8
                I made a launcher for e46 which I built a esp32 can bus pcb. This would be cool to integrate.

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                  #9
                  Rock on! Cool AF

                  Sent from my Pixel 9 Pro using Tapatalk

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