RS485 On Pi Bridge

GJS · Post by **GJS** » 10 Jul 2017, 20:18

I see that the Pi Bridge connector on the RevPi Core has two RS485 interfaces on pins A9+A10 and B9+B10. Can these be used as regular RS484 ports i.e can they be made to appear as /dev/ttySX etc. to the OS? If so, what are the voltage levels and what is the Pi Bridge connector type?

Thank you.

volker · Post by **volker** » 12 Jul 2017, 16:26

if you are not using the PiBridge for any RevPi Modules you could stop the PiConnect driver. In such a case you could use the pins for RS485 (see norm documents for levels etc.) communication using tty of Linux. BUT: The PiBridge connector is customer specific and there is no counterpart available. Please make it easy for yourself and use a USb to RS485 or RS232 converter to get your serial signals as tty under Linux.
There will be a special "RevPi connect"variant of the RevPi Core in the near future which will have RS485 screw terminals and which is operated as tty device under Linux.

GJS · Post by **GJS** » 12 Jul 2017, 16:34

Thank you Volker, understood.