Hi all .
I am using 74190 bcd counter to count objects inside the room ..
I used two sensors on one gate, one of them to determine if the object in or out the room and the other to increment o decrement the counter.
The connection of the sensor with counter like this
If I set the counter up using sensor2 then by clocking the counter using sensor1 the counter count up also if I set it down it will count down ..
But when I tried to pass an object through the two sensor in or out the room the counter doesn't count as expected ..
The following video describe what I mean ^^
I am using 74190 bcd counter to count objects inside the room ..
I used two sensors on one gate, one of them to determine if the object in or out the room and the other to increment o decrement the counter.
The connection of the sensor with counter like this
If I set the counter up using sensor2 then by clocking the counter using sensor1 the counter count up also if I set it down it will count down ..
But when I tried to pass an object through the two sensor in or out the room the counter doesn't count as expected ..
The following video describe what I mean ^^