7 segment display up/down counter with sensor

[fieryyella]

Am trying to build a up/down counter with a sensor to sense an object(cans) to increment and decrements am using a touch switch with a 555 ic so how can i add the counter and what kind of sensor should be used

 

[BeerBelly]

Welcome to the forum.
A previous thread discusses this project. See below
https://www.electro-tech-online.com/threads/up-down-counter.133400/

 

[alec_t]

Is the can static or moving? Size? Aluminum or steel?

 

[fieryyella]

just your regular food can you put in pantry's and it moves thru a rack

 

[alec_t]

The simplest sensor could be just a microswitch actuated as the can moves over it. Or you could use a reflection-type optical sensor, a beam-break optical sensor, or a sensor responsive to the electrical/magnetic propereties of the can.