i want to connect my circular with some external programs (to use it with tinkerforge (tinkerforge.org)) but i cant find a documentation of the ExtCon interface. please help!!
the External connectors are only meant to connect more circuits opened inside ktechlab. They don't allow connections to external program.
I suggest to try the Serial or Parallel port connectors, which should be able to open a real / emulated port and on the other end of the port you can read/write data.
Hope this helps,