Following up on inquiries I decided to make this board available again with an extended disclaimer:

The SDU inverter is known to be brittle with the OI logic board. It often works perfectly fine but there is a relatively high likelihood (in comparison to other drive trains) that it will destroy your inverter. If you understand that, hit the according checkbox.

This is not a beginners product, you need fundamental electronics knowledge to use it!

If you order now you will receive the board in late November. It only comes with the 6-pole encoder connector. All other connectors need to be sourced elsewhere.

This fully populated SMT board replaces the OEM logic board to allow you to take over control over the small drive unit. It is tested before shipping and programmed with the latest software at the time of order. An appropriate set of parameters is also programmed and parameters that do never require changing are hidden.

The on-board wifi module is no longer populated due to its poor connectivity. For setting parameters you will need an ESP based wifi board (see below) or you need to be comfortable with a command line tool.

The board has various analog and digital inputs but can also be fully controlled via CAN.

Learn more in Damiens video: https://www.youtube.com/watch?v=ZvlzGm709zg

The community edition does NOT include personal support by me but you can get help at the forum and you can educate yourself in the adjacent wiki.

This is a fully open source design. You will find all material on github including the schematic. General documentation is here: https://openinverter.org/docs

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