pas_cktmaker
Newbie level 3
hello all,
i am making a IR motion detector circuit(WITHOUT USING microcontroller)which also incorporates a counter circuit to it..thereby displaying the no. of times the IR beam is interrupted by obstructions.
as of now.the counter circuit that i have come up with incorporates 3 IC's per 1 7-segment display,namely :
(1)7447;BCD to 7-segment decoder
(2)7490;Decade counter
(3)7730;7-segment display
but this is making the counter circuit itself very bulky.i need a suggestion-
is there some IC which can substitute for all these ICs,OR ,any other way to make a counter circuit.
i am making a IR motion detector circuit(WITHOUT USING microcontroller)which also incorporates a counter circuit to it..thereby displaying the no. of times the IR beam is interrupted by obstructions.
as of now.the counter circuit that i have come up with incorporates 3 IC's per 1 7-segment display,namely :
(1)7447;BCD to 7-segment decoder
(2)7490;Decade counter
(3)7730;7-segment display
but this is making the counter circuit itself very bulky.i need a suggestion-
is there some IC which can substitute for all these ICs,OR ,any other way to make a counter circuit.
