By Bertan Kazazic
Exciting news from the bm3 electronics team! With the Rev1 version of our CANBus sensor hub board completed, and now focusing on an enclosure design, we have finalized our Rev2 design as well. As mentioned in our previous post, Rev2 board builds further on the Rev1 design by expanding its input sensing abilities and adds 6 outputs.
The smaller Rev1 board features configurable CANBus conversion for 2 frequency inputs (e.g. flex sensor input), and 3 analog 0-5v inputs and will be a lower cost option for those looking to simply hook up a flex fuel sensor and possibly monitor any other sensors needed (e.g. low pressure side fuel pressure sensor on N55/B58) and be able to get Flex Fuel running using BM3 custom software enhancements right inside the DME. For flex fuel sensor integration, Zeitronix ECA2 and any other similar boards are also supported.
The Rev2 board keeps the 2 frequency inputs like the Rev1, adds 2 EGT sensor inputs, expands from 3 to 8 analog 0-5v analog inputs and adds 6 outputs. All i/o is canbus integrated for sensing and control of canbus connected systems, primarily the DME. Both boards have integrated WiFi/BLE and all configuration is done over WiFi and integrated with the bm3 app/editor for ease of use by end users and tuners. Stay tuned for the release of many of the other new features we’ve been working on over the past year and more to follow on this board as firmware development is completed.
Some pictures of the board design below: