a little bit info . suppose A and B are the two detectors , the vistors going in first pass A and then B
.
ok. when A gets triggered (ie beam broken), the ckt associated with it will enable the o/p of (for a short duration) the sensor B, and it will chime only when A and B are broken sequentialy..and will work only in one direction.
a little bit info . suppose A and B are the two detectors , the vistors going in first pass A and then B
.
ok. when A gets triggered (ie beam broken), the ckt associated with it will enable the o/p of (for a short duration) the sensor B, and it will chime only when A and B are broken sequentialy..and will work only in one direction.
a little bit info . suppose A and B are the two detectors , the vistors going in first pass A and then B
.
ok. when A gets triggered (ie beam broken), the ckt associated with it will enable the o/p of (for a short duration) the sensor B, and it will chime only when A and B are broken sequentialy..and will work only in one direction.