WOULD LIKE TO USE a TBD ? "device" AS A PROXIMITY SENSOR TO DETECT MIRROR DOOR POSITIONS, "OPEN" OR "CLOSED" . ,
AT CLOSE POSITION THE MIRROR IS ABOUT 15 TO 25 [CM] =[ 6 " TO 10"] FAR FROM THE TBD [RECEIVER AND TRANSMITTER.... [opto magnetic other but not mechanical bar can be used] ?],
MIRROR DOOR MOVES TO OPEN POSITION ABOUT 45 DEGREES .
Question : What device (PROXIMITY SENSOR) TBD can DETECT DOOR distance +/- 0.5 [cm]or better from "device" [POSITIONS-open or close] ? Note: device size shall be within 10 mm x 5 mm x 5 mm and not use the 930 nm light frequency