I have investigated the pinout on the motor and sensor pcb of the BM.
Motor draws 110mA at 6V, but if door is jamed the motor draws 190mA. It is not more than 190mA since there is a clutch so that the motor still moves even if door is still.
Because of the motor being a 6V motor I have desided to build my own H-bridge with P-FET and current limiting NPN transistors so that there is no need for 6V regulator. Smaller, cheaper and better.
I will order pcb's next week, that is week 38 instead of 34....
I count from left to right on picture
pin2.1 : 3v3 active low when open
pin2.2 : 3v3 active low when close
pin2.3 : 5V supply
pin2.4 : 0-5V, and minimum when closed.
pin2.5 : GND