The plan is to create a PCB that will allow you to place a raspberry pi zero in a ME-MAX housing so that it can be mounted on DIN rail as often used in industrial applications.
It will be designed to fit into the housing with 6 4pin conntectors.
It will also include the following circuitry.
- 24Vdc to 9Vdc converter - DC-DC, so that a CAN bus can be established on the backplane
- 9Vdc to 5Vdc converter - probably linear to drive the raspberry pi zero
- CAN transceiver for backplane (model mix)
- RS-485 transceiver for backplane (model mix)
The following external connections will be fixed:
- Serial port accessible from one of the external connectors
- 24VDC from one of the external connectors
- CAN or serial or RS-485 available from the T-BUS
- 24VDC available from the T-BUS